Archive of Our Own

Katsuki knew his relationship with Izuku was weird. Too clingy, overly dependent. And, yeah, his boyfriend also liked to make out with twinks when he was drunk. So what? Who was Katsuki could deny his perfect nerd of what he wanted? Besides, he didn't mind, not when he knew he was the only one who'd fuck Izuku good and deep until the morning sun.

It started back in high school, long before Katsuki had gotten his shit together enough to man up and make a move on the nerd. Back then, war over and a mess of teenage hormones spilling over tenfold, as though they'd all been holding their breath until AFO was defeated, Izuku would let loose on their weekends off. And even then, Katsuki would just watch like a fuckin' creep.

Things were different then. Of course they were. Katsuki was too in his head to sort out his feelings, emotions warring with themselves and leaving his jaw sore with how tightly he clenched his teeth. But then a giggle would burst from Izuku, loud and unbidden, and his eyes would widen, as though the sound had taken even him by surprise, and Katsuki thought things couldn't be all that bad. Not with his nerd smilin' like that, cheeks pink and breathless.

It wasn't just twinks back then, either. The opposite, really. Maybe that's why Katsuki was alright with their whole arrangement now, so long as it wasn't any assholes like Shitty Hair or the insomniac. No, they'd gotten their turns already, and Katsuki was greedy to keep his little freckled nerd all to himself now, fuck off already.

Well. Save for the twinks, obviously.

The first time Katsuki caught Izuku with his tongue down someone else's throat was before they started dating. Before Izuku knew of Katsuki's feelings for him, hell, before Katsuki knew his feelings for the nerd. He heard the explosions before he felt them, a rush of warmth leaving his heart pounding so hard he had to take some deep breaths, check his monitor to make sure he didn't need to go for a fuckin' emergency check-in.

Logically, he knew parties like that were where normal teenagers let their guards down. Nudged up a little closer, offered each other increasingly suggestive looks, even messed around a bit. But they weren't normal teenagers. They were hero students at UA, entirely too focused on winning a goddamn war to worry about anything like trivial teenage rite-of-passages.

Which meant their common room hang outs usually consisted of lower energy activities, like movie marathons that ended in sleepovers, or game nights that occasionally got too rowdy. He shouldn't have been surprised when Mina had somehow procured a bottle of vodka that random Saturday night in their third year, but still, he was. He was never a social person, and slung along the walls even then as he observed carefully before jumping in.

Icy Hot lingered near him most of the time. He was the one who pointed it out that first time. Damn bastard should've known better. Nearly got blasted on the good side of his damn face.

"Oh, looks like Midoriya is getting into the spirit of the party."

Katsuki's head whipped around so fast, a sharp pain shot up his neck. But nothing compared to the way his vision blurred around the edges at Deku half sprawled on top of Kirishima — fucking Shitty Hair?! Sure, Katsuki avoided talking about Izuku in general unless it was fuckin' insults, but he didn't expect his fuckin' best friend to be so dense as to not pick up on Katsuki's own muddled feelings. What the fuck was even the point of best friends if they couldn't read you better than yourself?

He scowled, let his explosions pop off. Steam came from his ears, and Half 'n Half slowly scooted down the wall to escape the blast zone.

Then, Katsuki watched.

Watched as Izuku's tongue left his mouth, dipped into one with sharp teeth.

He smiled, even then. Like he was having fun.

Kirishima had his hands wrapped up in those green curls, and Katsuki about drooled with jealousy. He let himself watch until he felt too dizzy to stay upright, then briskly excused himself to his room for the rest of the weekend.

The next time it happened was a more relaxed party. It was near graduation, and everyone was too emotional to get to that previous level of rambunctious. Plus, the extras had done a shitty job cleaning up after that one, and Hobo-Sensei basically fuckin' grounded them all for a goddamn month. Needless to say, this one was much more mellow. Refined, even. Ponytail had procured some fancy wine glasses, and string lights danced along the ceilings to coat them all in a twinkling warmth that the fuckin' cheese dude would've been enamoured with.

And again, he didn't expect it.

He'd left the kitchen, a small glass of wine in his own hand—because he was warming up to this shit, and the cab sav was kinda good, shut the fuck up—when he saw it.

A beanbag strewn out from someone's room, too many pillows piled up to count. Tucked away in the corner, like they both were too shy to be seen, but didn't have the energy to make it to a bedroom or behind a closed closet door.

So there they were, for anyone to fuckin' see.

For Katsuki to fuckin' see.

The insomniac and fucking Deku. Kissin' slowly, like they were in no rush. They looked like they were breathing each other in, and Izuku's leg was hiked up over Shinsou's hip, the latter rubbing small circles into his hip.

And again, Katsuki watched. No one else seemed to care, save for fuckin' Sparky, who was pouting without Toshi's attention on him. Still, it was unsettling to see those golden eyes darken, a sad smile creep up his face like a mask when he met Katsuki's knowing gaze.

Things went like that for a while. It only took a few more kisses for Katsuki to come to terms with this emotions he picked apart as envy and want, and even more late night heated discussions with Shitty Hair where Katsuki demanded an apology (despite receiving countless already) and the promise that he'd never fuckin' touch his Deku again.

"Honest, bro, I had no idea you were into him like that!" Kirishima had said, palms up in surrender. Katsuki still scowled at him, not entirely convinced that anyone would be able to leave Izuku so easily after getting a taste of him. Fuck. Just the thought sent a wave of dizziness through him. He curled with want, need.

"Oh, you're down so bad, Bakubro," Kirishima laughed, and expertly dodged the explosions sent his way. "No worries, bro! It's super manly to be into Midoriya! Didn't think you'd had a soft spot for such a sweetheart, though."

"Piss off," Katsuki growled out, shoving him from his room. "You don't know shit about me!"

"I don't understand what you're waiting for, though. Midoriya practically worships you, so I'm sure he'd say yes if you asked him out!"

Katsuki's shoulders raised, utterly quiet. Looked somewhere else, anywhere else, scowl plastered on his face. Kirishima just hovered in the doorway, eyes narrowed.

"Unless…" Shitty Hair said, looking suddenly smug. "The Great Explosion Murder God Dynamight is… scared?"

"I swear to fuck, if you don't shut the fuck up right fucking now—"

"Awe, Kats! This isn't just a crush, huh? Oh my god, my bro is in love! Holy shit, I think I might actually cry—"

"Get the fuck out!!"

Kirishima had, wisely, evacuated. Until a few nights later, when Katsuki started spiraling again after having nightmares where he was forced to watch Izuku tongue a line of random extras until the end of fuckin' time.

Things started to shift after graduation.

They didn't have as much free time, all heading to various agencies across the region, schedules scattered even more. Get togethers were sporadic, consisting only of whoever was available on a whim, gathering at some random restaurant or shoving into someone's house.

Katsuki was four steps into a plan to woo that damn nerd off his quirked-up boots when he got home after a late shift. Exhausted and ready to sleep for a damn week, he rolled his eyes when he got an incoming video call from Kirishima. He accepted it and tossed his phone to the side while he stripped off his clothes.

"The fuck do you want, Shark Week?"

"Bro! You actually answered!"

"Tch. Was feelin' generous."

"That's so sweet. I miss you too, bro."

"I saw you yesterday."

Kirishima let out a whine to rival Izuku.

"But I miss hanging! Lettin' loose, ya feel?" He spoke through a fit of laughter, music rising steadily from the background.

"You fuckin' drunk?"

"Maybeeeee."

"Don't you have a girlfriend to drunk call?"

"Duh, but she's busy talkin' to 'Chako."

Katsuki rolled his eyes. "So I'm the back up, huh?"

Kirishima grinned, like he'd cornered Katsuki. "So you admit you like my attention."

"S'not what I said at all, the fuck. What are y'all doin', anyways?"

Kirishima shrugged, and let out a heavy sigh. He was collapsed onto a familiar sofa, maybe Sero or Icy Hot's.

"Couple of us had the night off together. Mina wanted to have a wine night with the girls, but then Momo invited Todobro, and Mina said she missed me, so we ended up crashing. Oh, Midobro is here, too!"

"The fuck?" Katsuki sat up from where he was peeling off his sweaty socks, full attention on the screen. "Why is the shitty nerd there?"

"Oh, wasn't it obvious? He's always invited to girls night!"

Tch. Figures.

"Alright. So why are you callin' me again?"

Kirishima furrowed his brow, the wine glass tipping against his mouth as he pondered the thought. "Oh yeah! I was gonna tell you, bro. You gotta speed up your game plan with lil Mido. I'm cheering for you, but you've got some competition still."

"The hell is that supposed to mean?"

Kirishima tilted the phone, and Katsuki about lost his balance even though he was sitting down. The kitchen was full of the girls from their class, all sipping their wine and chattering amongst themselves, completely ignoring how Izuku had tugged Icy Hot down to his mouth, leaving soft pecks along his jaw, up near his earlobe, down his neck. And still, that signature smile in between each little peppered kiss.

Heat flared up in Katsuki. It'd been a while since he'd felt such a vicious pang of envy like this, and he collapsed onto his back, mind screaming out a chorus of hands off, mine, mine, fuckin' mine.

"Sorry, bro," Kirishima said through a wince. "He's still insane about you, but seems like he's a hard one to tame."

"Whatever. The nerd's just havin' fun. He'll realize who he belongs to soon enough."

"Woah, man. I just got chills."

Katsuki glared at him, flipped him the bird, and hung up before falling into a restless sleep.

Needless to say, Katsuki was done with whatever the fuck that was. Marched right up to the damn nerd the following week, put him right in his place. One arm equipped with a bouquet of purple irises, because of course he knew Deku's favorite flower, and all those hero tabloids got it wrong, the other with a container of the double chocolate brownies Katsuki had made one winter in the dorms that he'd gotten the nerd (totally inadvertently with zero ulterior motive in sight) addicted to.

"Oi, Freckles," Katsuki barked at him from across the agency floor. Izuku was striking in his hero suit, even after all these years of Katsuki taking it in. He put on the outfit and fuckin' glowed. Katsuki knew better than to shield his eyes, though, let all the other extras squint. He'd long grown accustomed to the shine, had fuckin' risked blinkedness for years just to be the only one able to handle pure, unfilted Izuku.

"Oh, hi, Kacchan!" he smiled, and it always took Katsuki back to the first time they met. Tiny little brats, hand in hand as they stumbled around one another, chasin' lightning bugs in the late summer evenings. "Whatcha got there?"

Katsuki thrust the flowers out, close enough that Izuku had to go cross-eyed just to keep his eyes on them.

"For you."

Izuku looked carefully between him and the flowers, and Katsuki's cheeks flushed hot. He would've waited and done this shit in private, shown up at Izuku's apartment instead, but he just couldn't wait another damn minute, had to see him the moment his mind had landed on a plan.

Well, an abbreviated plan. Because the full one was taking too long, and Katsuki was fuckin' tired of watching the nerd make out with people who weren't him.

Abbreviated plan step one: flowers and romantic gestures.

Izuku peered at the container still in Katsuki's grip, brows raising in a silent question. Katsuki handed it to him, looking away as that heat crept up the back of his neck to his ears. Slowly, Izuku pulled the lid off, eyes sparkling as he took in the dessert.

Abbreviated plan step two: sweet nothings written in sugary icing.

"I like you. Go out with me," Izuku read mechanically aloud.

"Holy shit," Katsuki lunged to clamp a gloved palm over his mouth. "You don't gotta announce it to the entire city, nerd! Stop exposing my fuckin' sap."

A muffled giggle came out from behind his palm, and Katsuki lowered it so he could hear it fully.

"Kacchan," Izuku said, voice breathless and beautiful. Katsuki felt any lingering embarrassment fall away, because who wouldn't be at least a little in love with this freckled nerd? "This is what you call sappy?"

"Well, duh," Katsuki blinked at him. "The fuck else would it be? You deserve it. Uh, sweet shit, I mean."

That earned a blushing smile out of Izuku, and he batted his pretty lashes at Katsuki from behind the flowers, as though he still had to fuckin' do any work at all to make Katsuki's feet swoop further from under him.

"That's better," Izuku murmured into purple petals, and took a step closer to Katsuki, making his breath hitch.

"So, what's your answer then, huh, Freckles?" Katsuki's voice was hoarse, but he refused to back down now. Not even if all the eyes of the agency were on them, peeking out from behind cubicles or out of office doors.

Green eyes lifted to meet his, and, oh. Something just rested right there in his chest, just coiled up like it belonged there, and he hadn't even known to miss its presence all this time, because now that it was here, he never had to worry again. All at once, it was like he'd seen this moment before, maybe in a dream, another life, and they'd always end up here. Yeah, that sounded about right. Because he knew the nerd would say yes. Of course he would. They'd always be together, for the rest of their damn lives.

"I've always been Kacchan's," Izuku said, voice low, just for the two of them.

Abbreviated plan step three:

…

Well. Katsuki was never very good at following plans.

Too caught up in that gleam of emerald eyes, Katsuki swooped down, tugged his nerd in close to his chest and kissed him right there. He had no idea how the other kisses started, if Izuku sought the boys out and tugged them to meet his mouth, if alcohol gave him the courage to crowd in close to someone. But none of it fuckin' mattered anymore, because Izuku was smiling against his mouth now, letting Katsuki's tongue gently explore his, and he tasted like peppermint and chocolate and all things sweet that Katsuki tried so hard to resist, but was hopeless to in the end.

"Mine," Katsuki said, and gave a small nip to Izuku's plump cheek to seal the deal, earning a small yelp out of his boyfriend.

It was easy, what came after.

Dinner dates and grocery runs. Movie nights cuddled up close. Nothing had changed, and everything had. Izuku still yammered on endlessly so Katsuki couldn't hear a damn word of whatever it was they were watching, but instead of grumbling at him, he let himself get lost in the haze of Izuku. Eyes half-lidded, cartoon hearts fuckin' floating around his head, 'cause he was whipped, holy shit. It was an old All Might documentary, because what the fuck else would it be, and Izuku was tellin' him all the shit Katsuki had heard a thousand times, but not quite like this, because last time their classmates had been around and they'd interjected too many times. But now, he had one hundred percent nerd, no interruptions, so how could he do anything but listen?

To be honest, Katsuki had had his fair share of wet dreams. All featuring Izuku in various forms, of course. Shitty nerd Izuku in his too-big school uniform and that fuck ass tie, Hero Deku drenched in sweat and blood and that smile that promised safety and comfort. But nothing compared to having his lap full of Izuku, strong thighs straddling him, hips grinding impatiently. Because Izuku was a fuckin' slut, of course he was. Katsuki was dizzy with it, how insatiable he was, how he whined and pleaded and begged for it so well. Used those green eyes to his advantage, always got Katsuki right where he wanted him.

Katsuki was so fuckin' weak for him.

Fell to his knees, every damn time.

Whatever his nerd wanted.

It was how their evening routine turned into heady make out sessions against the nearest flat surface, be it a wall or the floor or the kitchen counter. Missed my Kacchan, Izuku would breathe, moan into his mouth as Katsuki hooked his elbows under his knees, pressed in close and tight, right where he belonged between those thick muscled legs. Mine, Katsuki murmured back, sucking dark bruises into his neck and ignoring whimpering protests begging him to stop just to prove it. Because the whole world loved Deku, but Katsuki was the one who had him.

"Kacchan?"

Oh, that voice. Paired with eyes lookin' up at him like that, shit. Meant nothin' but trouble for Katsuki. He took a deep breath, mentally steeling himself, turning over whatever it was Izuku would request of him now, wondering how quickly he'd fold this time.

Weak.

He wouldn't be any other way for Izuku.

He couldn't be that way for anyone else, ever. Always a hero, a symbol of victory, the one who had died to save the world, to save Izuku. Strong and confident, through and through.

Yet Izuku caressed his heart as though it were made of glass. Cradled it like it was something precious. Took better care of it than Katsuki ever had.

And just like that, Katsuki could exhale. He hadn't known it'd felt so tight before, but there it was. A weight, gone. He was just Kacchan, just a kid running around chasin' bugs and laughing until the sun went down. Small fingers tangled together, now and always. And he could let himself feel tired, could let his muscles feel the strain and pull of the years as they wore through him, could sit up against the trunk of a tree and just exist.

Izuku would always be there with that damn smiles. And Katsuki was safe, and he could relax, let himself be weak, because it was Izuku who watched over him, who'd protect him, guardian of his heart.

"I wanna try something," that voice brought him back down to earth. Promised mischief and something alluring, and Katsuki was eager for a taste. Would walk blindfolded wherever Izuku led him, let his mouth tip open unprompted, take in anything he gave him.

"What is it, 'Zuku?" Katsuki asked. He had to lean in close, pressed his mouth to the shell of Izuku's ear. It was crowded in the bar. The scene wasn't much in either of their tastes anymore, but it was Jirou's birthday, and she, Denki, and Shinsou had become known as regulars here thanks to the live music scene and decorations straight outta another decade.

Izuku giggled, always ticklish, and Katsuki couldn't help but let his fingers twirl up in some of those curls. He basked in the shiver it earned, watching every tremor of muscle as it racked down Izuku's frame. The nerd could still barely dress himself, wearing the same t-shirts he did in high school. They were way too fuckin' tight now, but Katsuki wasn't an idiot and didn't dare complain. Not when his eyes could rake along the outline of those lucious pecs, mouth watering as he lingered on a nipple.

But Izuku was oblivious to Katsuki eye-fucking him, or more likely he was just too used to it by now and shook it off with an innocent giggle. Instead, he looped his arms around Katsuki's neck, lifted himself up on his toes as he blinked up at him bashfully. Katsuki could almost taste the vodka cranberry that was lingering on his lips, wanted to run his tongue along the faint pink stain on his lips.

His cheeks were pink, too. Izuku was easily flustered, even after all he and Katsuki had done. And, shit, what hadn't they done? Izuku was a fuckin' minx with bunny-like stamina, and Katsuki was hopeless to do anything but answer his every request with the level of commitment and enthusiasm that was rocketing him to the top five hero ranking.

He nibbled on his lower lip, turning the flush to an fiery red, and Katsuki's brow furrowed. Because that wasn't Izuku flirting. No, flirty Izuku bit along his lip idly, always paired with a languid lick of his tongue. This was like he was trying to gnaw the damn thing off, anxiety overtaking his rational thoughts and reverting him back to habits Katsuki rarely saw anymore.

"Hey," Katsuki said, and lowered his head to press their temples together, forced Izuku to just look at him. God, he'd never fuckin' get used to all that green. Some unnamed shade, too beautiful to describe, but Katsuki was a fool enough to keep trying.

"What's goin' on in that pretty head, huh, nerd?"

Izuku shrugged, a miniscule movement. He nibbled his lip again, and Katsuki tucked a thumb into his mouth, dragged his lip down 'til his teeth couldn't reach it. Izuku flushed hot, and Katsuki let the pad of his thumb trace soothingly over the sting, felt the hot exhale of Izuku's breath as he started to relax.

"Talk to me, Freckles."

Izuku's eyes welled up. Gorgeous, even then. Katsuki hated how much he loved the sight, willed himself to focus, even as his chest surged and his heart pierced and everything within him screamed a cycle of want and comfort and mine.

"Scared," Izuku whispered.

"Don't gotta be scared. S'just me, baby."

"That's why," Izuku sniffled, blinked once, just to get the tears to fall. Mindlessly, Katsuki's other thumb traced along his cheek, swept up the tear before it could fall away. "I love Kacchan. D-don't wanna upset him."

On a normal day, Izuku got a free pass to pretty much to anything. Well, save for sacrificing himself in villain fights and other shit that got him needlessly hurt, fuckin' obviously, but. Katsuki's mind was addled enough with alcohol that he was shaking his head instantly, no, no, no, baby, because Izuku could never do a damn thing wrong. Not in Katsuki's eyes.

"Tell me. Please? Promise I won't get mad, 'kay? Wanna help you, 'Zuku. M'here for you."

They were pressed in close, and Katsuki could feel Izuku's heart pounding against his. They used to get wolf whistles when they did this in public, just wound themselves up in one another, intertwined until no one could tell where one started and the other ended. But their friends were long used to it by now, and they were free to go ignored, even as Katsuki dragged his lips over Izuku's tear-stained cheeks, licked up those salty traces.

"P-promise? No t-take backs?"

"No take backs," Katsuki pulled back just enough so Izuku could see his calm smile. Then, lifted a hand between them, pinky raised so they could shake on it.

Izuku sputtered out a laugh as he linked his pinky in Katsuki's, then let himself be tugged in close so they could both press a kiss to their fists, sealing the promise as green stared longingly into red.

God, Katsuki would move mountains for him. He'd probably do ungodly things for him, honestly. Just for that smile, wobbly as it was. Fuckin' perfect. Katsuki wouldn't change a damn thing.

"Can I kiss Neito?"

The music faded into a distant rumble, and Katsuki vaguely had the feeling he was standing on clouds. He forced himself to blink once, twice, focused on green green green, grounding him, steadying him, holding him, keeping him safe—

"Kiss…" was all Katsuki said. Blinked again, and Izuku looked like he wanted to wail and claw his hair out.

"…knew I shouldn't have asked! I'm so sorry, Kacchan, I don't know what's wrong with me, I just get these weird feelings when I'm drunk—" he was crying, oh, love, don't cry, hiccups interrupting his anxious babble. "Kacchan is more than enough for me. Never thought I'd get so lucky and I just have to ruin it, I don't know what's wrong with me. You can break your promise, Kacchan. It's okay, be mad at me. Or grossed out. I'm so sorry, you deserve so much better."

Katsuki tried to say something. His mouth opened and closed a few times, eyes just locked on a pattern of freckles he'd long memorized. But every time he blinked, he saw it.

Those boys.

In the common room.

On the beanbag chair.

In the corner of a kitchen at girl's night.

Izuku's smile, the way he'd fluster them. Totally in control, smirking into it like Katsuki did when he won a fight. How he'd put on a show, always did it in places Katsuki could find him, always makin' sure he saw, made it show up in Katsuki's dreams later that night, haunting him until he was gasping awake and straining in his boxers.

Warmth coarsed through him, sudden and discomforting. His mouth was too dry, and he let out a pathetic whine as he saw a familiar flash of blonde in the distance. That smug face, thin frame, lookin' like he could be knocked down a few pegs real good.

He'd be no match for Izuku. Because his boyfriend kissed like it was a battle, and he was intent on winning. Always met Katsuki's energy head-on, eager for anything he threw his way, tongues melding, teeth clashing, moans loud enough to get them noise complaints.

Izuku was Katsuki's.

But Izuku was also Hero Deku. Symbol of Peace, Japan's Beloved.

Katsuki's.

His lips curled up in a feral grin. Because, yeah, that's his. All Katsuki's. And all those extras thought they could handle him, go up against what he'd rightfully claimed as his other half. But who'd be able to withstand him other than Katsuki? They'd come eagerly, hypnotized by those indescribable green eyes, floaty on their feet as Izuku lured them in with his siren's call. Then he'd destroy them, now and forever, with those earnest kisses and lingering nips that would keep him lodged in their mind forever. And then he'd plop off of them, just like that, sidle back up to Katsuki, finished, just an itch he felt like scratchin'. And who was Katsuki to deny him? He didn't really give a fuck, not when he knew those extras would be lookin' at him as he'd wrap a protective, possessive arm around Izuku, stake his claim.

Yeah. They could have a taste, but never the whole thing.

Mine.

"I am yours, I belong to Kacchan," Izuku blubbered, but Katsuki just snickered at him. Wide eyes locked on his mirthful ones, and he shook his head in disbelief. This nerd, throwin' him off like this, tch. Didn't he know he couldn't do a damn thing wrong, just had to let Katsuki buffer sometimes? Fuck.

"Damn right you do," Katsuki confirmed, and planted a firm kiss to his forehead. "You wanna kiss that extra?"

Izuku shook his head, spewing tears in his vigor.

Katsuki's lip curled more, and he arched a brow at him. "What, you scared now? Don't wanna let your Kacchan watch, huh?"

"I-I… Kacchan?"

God, he was so fuckin' cute like this. Blinking up at Katsuki like he was silently asking him to direct his next move.

Who was Katsuki to deny him?

He cupped his jaw, gently turned Izuku's head towards the corner where he'd last seen the Phantom Freak runnin' around. Leaned in close enough to make Izuku shiver.

"You wanna show him what he's missin'?" Katsuki drawled. "Dangle yourself in front of him, let him taste, but then run back to me at the end of the night so I can show you how a real man does it?"

Izuku keened. Eyes fluttered closed, as though Katsuki was tracing a feather down his spine.

"Please?"

Katsuki grinned, feral and toothy, far too broad for what was about to happen. But he didn't care, because all he saw was Izuku. Izuku, and how desired he was, how beautiful he was, how everyone else wanted what was his.

It didn't take long. Katsuki positioned himself around the corner, tucked away somewhere dark save for a lone strand of blinking out rainbow string lights. The music was quieter over here, too, and no one would see them. No, this show was for Katsuki and Katsuki alone.

He watched as his love took tiny sips of his drink, rolled his straw around between his fingers just to give himself something to do. It wasn't part of the innocent act, no, Izuku was really nervous. Didn't need to be, but the whole bashful thing just made Katsuki's mouth water more with how badly he wanted to tug him to the side and make him scream his name right here and now.

Slow, he willed himself, and took a sip of his own drink. He was buzzed, just enough to feel the curl of excitement as it writhed within him, making his heart flutter when Izuku finally approached Neito. Chin down, a soft murmur Katsuki didn't hear. Neito was smiling at him, who wouldn't? He'd grown out of his cockiness since they'd graduated, instead hurling light-hearted jabs at his friends instead of insults like he used to. Never quite got that spark back in him after the war, guess that'll fuckin' happen to you if you're forced to watch and never blink. But even so, he was sorta charming now, and seemed to be dialing it up a notch for Izuku.

Katsuki leaned against the wall as he took another drink. Eyes locked on his prize, just watchin' so intently he barely heard when a door opened behind him.

"Oh, Kacchan!"

Katsuki turned to give a curt nod in greeting to Denki, who'd emerged from the bathroom. He looked sloshed, more giggly than Izuku and stumbling over to him.

"Get off me, Sparky," Katsuki said, no bite to it as he didn't shove Denki off from where he half collapsed onto his shoulder.

"Mm. But you seem so comfy. No wonder 'Zu won't let you go."

Katsuki rolled his eyes. "Only the best for him, you know that."

"Of course I do," he said, and pressed his smile into Katsuki's shoulder, as though he was trying to muffle a laugh or a yawn. "Only the best for the best. The best is the best. But then… what does the best get?"

"The fuck," Katsuki sighed. "How much have you had?"

Denki peered up at him and blinked twice, eyes taking their time to look around the room. "Hmm. Purple."

"Jesus fuck," Katsuki groaned. "Look, Denks, I'm fuckin' busy here. Go talk to the insomniac and get him to take you home to sleep this shit off."

Denki only pouted, and clung harder to Katsuki, lifting his arms up to thread around his neck. "But we're fighting again! Wanna sleepover with 'Zu instead."

"Too damn bad. He's busy."

Another whine, and Katsuki sighed impatiently. Izuku was still talking to Neito over in the corner, laughing about something and letting his hands linger along the buttons of his shirt for too long.

"Are you mad at me?" Denki's voice was small, quiet. Katsuki turned away from his boyfriend before he realized what he was doing.

"M'not mad, Sparky," he said softly, in that voice he usually reserved for when Izuku was upset. Denki got like this sometimes, alcohol bringing dramatic mood swings that could fall out of control if not treated carefully. Katsuki didn't know when he'd become so well-accustomed to handling them, but it was easy, really. Just had to treat him kinda like his boyfriend, honestly, and it settled him right out.

"Really?" Denki asked.

"Promise," Katsuki said, even gave him a small smile, like it was a secret. Denki returned one of his own, small, but real. Nothing like the ones he flashed out to the world, begging for attention. "Wanna talk about what Hitoshi did this time?"

Denki grumbled something incoherent under his breath, and leaned his head on Katsuki's shoulder again. "No. It's fine. I'll get over it."

Katsuki tried to catch the look on his face, but it was covered by his riot of blonde hair.

"You sure?"

"Mhm," Denki sighed, then lifted his head suddenly. "Oh, 'Zu's on the prowl, hm?"

His cheeks flushed hot, the urge to deny and insist his boyfriend wasn't doing anything odd or unfaithful on the tip of his tongue. But Denki didn't look surprised, or even concerned. Just a bit sad. Maybe because he and his boyfriend were fighting, and here were Izuku and Katsuki about to get fuckin' weird and kinky in the same room.

"S'nothing," Katsuki found himself saying. "Don't worry about it."

Denki just nodded, but wasn't looking away. Just sat and watched Izuku work his magic for a second.

"You're a good boyfriend," came Denki's whisper moments later, paired with a light squeeze to his waist, then his friend was slipping away, meandering his way back to his own boyfriend, that fake smile plastered on his face again.

Katsuki wanted to be angry at Denki for fucking with his mood, but he couldn't help but be worried. He didn't like to but into other peoples' relationships, but he liked knowing they were happy, treated right. Shinsou and Denki had been together for a while, seemed great together. But happy? Katsuki wasn't sure anymore.

Light laughter, like summer floating on air coaxed him in, drew his eyes back to that mop of green curls. And like always, his worries faded away, nothing else in the world except Izuku.

Izuku, who was lacing his fingers with less familiar ones, leading him over here with that shy smile still on his face, like he couldn't believe this was happening, that he was really doing this. And Katsuki stood upright, chin lifted and proud, like he hadn't doubted him for a second, reassuring him with every moment of eye contact that he trusted him, loved him, would do anything for him.

"Knew you had to be around here somewhere," Neito said when he saw Katsuki. "Didn't think your leash extended that far from Izuku, though."

Katsuki snorted, and took a few steps further down the hallway, deeper into the shadows. Izuku's eyes were glassy from the drinks, tracing Katsuki's movements, cataloguing for any discomfort. He flitted into his space, wrapped himself up into Katsuki's arms.

"I told Neito that you had a video of that stray cat family we saw the other day on patrol," Izuku told him. Katsuki wanted to laugh, because, yeah, Neito was like his best friend Hitoshi in that they were both obsessed with cats, but also that Izuku had picked such a fuckin' cute reason to get this asshole over here just to kiss him breathless.

"Sure, nerd," Katsuki said, pressing a light kiss to earn a satisfied sigh out of Izuku as he tugged his boyfriend in closer and pulled out his phone. "Get over here, Freak Show."

Neito scoffed, but any protests melted off of him as Izuku reached for him, tugged him in. Too close to be considered normal, crowding up in his space in a way he wasn't used to, but that's okay. He had a task right now, anyways. Just had to pull up the damn video, let it roll, and Izuku could keep workin' his magic.

"See, there were four kittens, all calico," Izuku whispered. He and Neito's heads were close to peer down at the screen. Izuku's curls brushed along his skin, but Neito was too engrossed in the video to notice.

"Should've taken one," Neito sighed wistfully. "They're beautiful. I've rescued too many that I've come across on the streets."

"I didn't wanna separate one from the family, and Kacchan wouldn't let me take them all home," Izuku pouted. "But we go back every day to make sure they're warm and fed."

"That's sweet of you," Neito smiled, blinking slowly as he raised his eyes from the screen to Izuku, who was already looking at him.

"I try," Izuku whispered, a small smile playing at his lips, and, there. That nibble, the one paired with the slow lick of his tongue. Katsuki smirked when he caught Neito's eye tracking the movement, his facade falling as his brows pinched together, concentrating, memorizing.

"Hey," Neito said, voice too breathy. "Is this some sort of trap you've caught me in?"

"Is it working?" Izuku asked sweetly, letting his hands wander up Neito's chest again, fingers coming up to tangle in his hair and beckon him closer.

Neito swallowed shallowly, then lifted his eyes to Katsuki's. One brow crooked, as though he were asking for permission. Katsuki's grin widened, and he felt the sharp tips of his canines poke into his lips. Gave one nod, and nudged his nerd forward a little more into his prey for the night.

"Holy shit," Neito said, eyes back on Izuku. Good, Katsuki thought. Fall into him. Get a glimpse of what's mine. Taste his lips, get addicted, then grow jealous when you realize you can't fully have him.

"Have fun with me?" Izuku asked, and those green eyes, those angel eyes were peering up at Neito, hypnotizing him, luring him in, and their mouths met slowly, tentatively. Katsuki's breath caught, and he waited for the jealousy to crash into him. The envy to take over, anger coiling through his nerves and steer his next actions, pluck Izuku away and back into their home.

But it never came.

No, because one of Izuku's hands was winding into Neito's hair, but the other came down to tangle with Katsuki's fingers. He leaned back, ass grinding into Katsuki's crotch as he deepened the kiss, and Neito followed, pitching forward to stay connected.

"There you go, 'Zuku," Katsuki murmured into his ear, and gave light, wet kisses along his neck, making his boyfriend moan into another man's mouth. Neito gasped into the next kiss, as though he couldn't believe his luck, couldn't convince himself that this was real.

He lost track of time after that. Just let his eyes fall to half mast as he watched those plush lips take apart someone else piece by piece, tiny gasps exchanged between the two of them. Every so often, Katsuki would squeeze Izuku's hand, earning a reassured squeeze back, and they'd keep going. He left his other hand drift, fingertips with a mind of their own as they slowly traced back and forth along Izuku's hip bone, steadily dipping lower into his waistband, tilting his hips back to put more pressure against Katsuki's straining cock.

Izuku came up for air, gasping as he giggled towards the ceiling. Green eyes, so full of life and joy gazed up at him adoringly from where his head tipped back against his chest, and—fuck. Katsuki loved him so fuckin' much, he didn't even notice that another man was sloppily kissing along Izuku's neck, pressing in closer like he'd die if he didn't get more.

But Katsuki had a limit here, and he was about two seconds from shoving the extra away and stripping Izuku and taking him right here. He dug his teeth into his lip to stave off the need, but Izuku saw right through him, expression turning playful as he grinded his ass up against Katsuki again, fuckin' tease.

"Thank you, Neito," Izuku said, and pulled him back by the scruff of his hair to plant a final slow kiss to his mouth. "Kacchan's gonna take me home now."

Neito's brows rose as he blinked himself back to this reality, eyes darting back and forth between the two of them. And Katsuki could only smirk, because, yeah, 'Zuku is his, and holy fuck, he was so turned on that he was light headed and ready to show his boyfriend exactly who owned him, who could really make him gasp and moan for the rest of the fuckin' night.

Katsuki's own stamina had grown impressive since he'd started dating Izuku. But that night, he was on another level. It took them twice as long to walk home because Katsuki couldn't fuckin' wait, just had to reduce his nerd to a blabbering mess the moment they were alone in an alley way. Then again in the elevator on the way up to their apartment. And one more time on the kitchen counter, earning three orgasms out of his boyfriend before he finally sunk home and let his own mind turn fuzzy. It was possessive, even by Katsuki's standards, but Izuku just smiled blissfully the harder he grasped his neck, moaned and screamed out promises that he belonged to Kacchan, Kacchan, Kacchan.

They fell into a sort of pattern after that.

It didn't happen often. Most nights, they were content to lounge around at home, too wrapped up in one another to step outside. Katsuki still cooked Izuku his favorite meals, and Izuku still ran up to Katsuki to spend every lunch break that they could together. Everything was normal, when their friends would come over for a game night, or whenever they'd head over to someone else's place for dinner.

But when alcohol was factored into the mix, Izuku's grinned turned mischievous. And slowly, his confidence grew. Not frequently, only on more bustling, heady nights when their friends would drag them out. Katsuki usually groaned when he was forced to come along, but now he noticed himself taking extra time to get himself ready, eyes lingering on Izuku's frame more expectantly as they entered clubs or bars or friends' houses that were overflowing with music. Drinks pressed into their hands, and an added weight to the looks they gave one another as their inhibitions slowly lowered more and more. Katsuki would hold him close in those moments, making sure to press hard with his fingertips so Izuku would still feel him even as he walked away for a little while. Sometimes, he'd even kiss him sloppily, not wiping away the sheen of saliva he'd left on Izuku's lips so it would still be there when he went to someone else. Then, as the hour grew later, Izuku would give Katsuki a look, and Katsuki would nod, of course, and it began all over again.

Some of them were nameless. Cute enough guys who seemed to satisfy Izuku. He'd pull them into the dark with the two of them, kiss them senseless for a few minutes, or longer if he was really having fun. Katsuki was close by most of the time, usually within touching distance. But a handful of times his own friends shouted for him, and he resigned himself to go pretend to listen to Eijirou or Hanta or Mina talk his ear off while his eyes were locked on the silhouette of movement in the corner, wondering how much longer he should give 'em before prowling over there and claiming Izuku back for himself, aching in his jeans for all that was to come.

Other times, it was people they knew. Never fuckin' Shitty Hair, and Insomniac was off the table now since he was with Denki. But Icy Hot was preceptive as always, and merely raised an amused brow when Izuku approached him with a wry smile.

"You're alright with this?" Shouto asked as Izuku was kissing up his neck. Weird how now, it didn't bother Katsuki like it had when Eijirou had called him from that girls night all those months ago. Because Shouto may have gotten a bit of Izuku first, but Katsuki had all of him, forever.

No one could beat that.

"Fuckin' duh. He's his own person. Can do whatever the fuck he wants," Katsuki answered gruffly, hoping the strain of his voice was chalked up to irritation rather than arousal.

"Kacchan still owns me," Izuku hummed, like it was the simplest of facts. Like it didn't send a shudder through Katsuki's entire being, make him wanna rip off all of Izuku's clothes and show him exactly how thrilled that statement made him. "He just lets other boys borrow me sometimes."

"Alright," Shouto answered, though his voice wasn't unaffected either. Probably because Izuku was nibbling the sensitive skin just below his ear, smiling into him like he did when he and Katsuki were sparring together, training together, doin' anything or nothing at all. Because that's all this was, just another way for them to have fun together.

Shouto's eyes fell closed, a near silent gasp leaving him without permission. Izuku closed the space between them, mouth coming to cover his. Katsuki felt himself grin as he watched Shouto gradually collapse against the wall behind him, as though he needed extra support from what Izuku was doing to him with just his lips, his tongue. And Izuku looks unaffected, save for how he still smiled into each kiss.

Fuckin' Icy Hot was so far out of it by the time the nerd was done with him, he merely smiled and gave a light wave as Izuku let Katsuki tug him away, only making it to the nearest bathroom before Katsuki was opening him up and making him fall apart more than he'd ever seen when he kissed someone else.

So, yeah. It was a fuckin' thing they did. Not weird, why the fuck would it be? Izuku just had urges, and Katsuki was happy to help him satisfy those. And if some weird fucked up possessive part of Katsuki reveled in the whole thing, even better, right?

Katsuki should've fuckin' known someone would've come along to ruin it sooner than later.

It was risky. Getting tipsy like this at a fuckin' agency banquet. Celebrating some extra's retirement. Katsuki didn't know much, just that his presence was required, and there was free booze, and his boyfriend was on the verge of giving him those eyes that meant trouble.

Katsuki wanted. God, he wanted. But they were surrounded by coworkers, fellow pro heroes, their bosses, not to mentional a few stray journalists.

It sent a shiver down Katsuki's spine, but he tamped it out before it could grow out of hand.

"How much longer you wanna stay at this thing, nerd?" Katsuki asked, slinging an arm around Izuku's waist. His movements were slow, Izuku's weight falling into him more than usual, not that he minded.

"Mm. Just a little longer, Kacchan? There are still some people I wanna talk to."

"Alright. But I'm exhausted, so don't drag me into any long networking conversations. M'just gonna sit here, 'kay? Find me when you're done?"

"Okay, Kacchan," Izuku said, and leaned down to press a warm kiss to his cheek, then flitted off through the crowd. Usually, Katsuki would've pulled his phone out by now, resigning himself to mindless scrolling to pass the time, but he'd had enough to drink to find people watching amusing, and let his eyes go a bit unfocused as they traced along the groups that lingered. The party was slowing, his friends slowly filtering out and heading home, so it was easier to spot that bright blonde hair as it made its way over to him.

"These things are so boring when you have to watch your image," Denki complained as he plopped himself down into the seat next to Katsuki. His bowtie was undone, hair a bit disheveled, pupils wide as he sipped on his own cocktail. It was some frilly thing with an umbrella, and Katsuki wasn't above saying it looked good enough to make his mouth water as he sipped on his own bitter drink.

"You're just mad you can't get blackout and run around singin' karaoke like you did in high school," Katsuki scoffed, but Denki only gave him a half-hearted laugh.

"Yeah. Those were the days, huh?"

Katsuki didn't know about that, but he didn't say anything. It wasn't unusual for Denki to look back fondly on their time at UA, despite all the bullshit and trauma they'd been through. It was like he could look right past the bad shit, see something that Katsuki had missed, a bright spot he didn't know had been there that made it worth missing more than he did.

"Damn. When's it gonna be my turn?" Denki huffed, and Katsuki frowned at him, confused. But then he caught him pouting in the direction of Izuku, who was chatting up a new sidekick who'd recently joined the agency. Katsuki didn't remember his name, and didn't think this was that kinda night, even if Izuku had looked at him suggestively earlier. He'd assumed they'd just chalk it up to some weird pavlovian effect that now happened whenever they dipped too far into tipsy, and he'd just tug Izuku away if he tried to get too frisky around their coworkers. Katsuki looked back at Denki with an arched brow.

Denki merely huffed, and collapsed down onto his arms on the tabletop, still watching Izuku.

"Denks," Katsuki said softly, and leaned in closer. "The hell are you talkin' about?"

Golden eyes turned to meet his. Katsuki remembered when those used to be as bright as Izuku's smile, glowing when he'd activate his quirk. But now they just looked dull, like he'd run out of battery and didn't have the energy to charge himself up again.

"I know what he gets up to on nights like this. You're not the only one who was close to him, y'know."

Katsuki's frown deepened. He was used to sass from Denki, fuckin' always, but right now, he was acting snappy. Like he didn't even wanna be having this conversation, but was forcing himself to. Whether for his own benefit or hurt, Katsuki still wasn't sure.

"Alright. Fine. So you know. The hell do you mean when is it your turn?"

Denki glared at him, but Katsuki didn't move away. Just leaned in further, examining the expression, trying to see through any throw away comments or words full of false confidence Denki liked to hide behind.

"I mean, when do I get to kiss 'Zuku?"

"You wanna kiss my boyfriend," Katsuki deadpanned. He was… too sober for this conversation with this person, he was quickly realizing.

Hurt flashed over Denki's face, but he covered it quickly. "Duh. Who wouldn't?"

Fair enough. "What will your 'Toshi think of that, hah?"

Denki shrugged and leaned back in his chair. "He wouldn't. We broke up."

The fuck?

"A while ago," Denki grumbled, picking idly at the sleeves of his dress shirt. "Not surprised you didn't notice, though. It was a whole thing, back at Momo's evening tea party that got out of hand. Think 'Zu was busy getting up on Tamaki at that one."

"You're fuckin' keepin' track now?" Katsuki asked, earning another glare out of Denki.

"Whatever, Kacchan. I'm not judging you guys for it, so don't judge me for noticing."

Katsuki bristled at the tone, eyes narrowing as some part of him urged him to knock Denki off his pedestal, earn that soft smile back instead and remind him exactly who could tell him what to do—

The fuck?

Katsuki blinked. Again. Mouth open, then closed again. Denki just sighed wistfully, giving up on a response from Katsuki and instead turning back towards the rest of the room.

"Denki!" Izuku's melodic voice felt like a sip of cool water after that weird ass tension, and Katsuki was thankful he returned to them alone, without that random sidekick extra. Denki seemed pleased too, but still only managed a half smile to greet his friend.

"Hey, 'Zu. You having fun?"

Izuku shrugged. "I suppose so. But I think I'm ready to go home now, Kacchan."

Denki didn't look back at Katsuki. Just gazed endlessly at Izuku, that fake smile he gave the world plastered on his face again. Katsuki hated it. It made him wanna tear his hair out, yell at the top of his lungs until Denki spilled everything he was withholding, throw everything out the fuckin' window and destroy this damn ball room just to figure out what was wrong.

"Denki wants to know when it's his turn," Katsuki blurted, then blinked at his own words. He didn't need to look at them to know there were two sets of wide eyes on him, owlish in their shock.

"W-what?" Izuku stammered.

"Jesus, Katsuki, you didn't have to word it like that!" Denki wailed, and hid behind his hands.

"Your own words," Katsuki muttered. Izuku's cheeks had gone a deep red, almost like they'd been that first day Katsuki had stormed into the agency and demanded he go out with him.

Because Katsuki didn't know what the fuck he was doing right now. But he did know he saw something when Denki looked at Izuku. It wasn't like all the other thirsty guys, droolin' all over themselves just to get a lick of Izuku. No, this was something more. Something painful and familiar and aching with longing.

Something Katsuki had known all too well, once upon a time.

"I-I don't understand," Izuku stammered, and Katsuki pulled his wits together enough to rise to his feet, tugging the two hopeless idiots along after him. Though they were at an agency event, they'd rented out some stupidly huge venue, and there were plenty of empty rooms to choose from. Katsuki hauled his assholes along, feeling like Mina at a fuckin' high school party tryin' to get Glasses and Cheeks locked up in a room together to smooch.

Except this was Katsuki, trying to get his boyfriend to kiss his friend.

Not fuckin' weird, got it?

"I don't know about this," Izuku said, but still let Katsuki haul him up to Denki, who was pointedly looking anywhere but at the nerd he'd practically been begging for moments ago.

"Why not? S'fine, Freckles. We do this shit all the time," Katsuki said.

"B-but—"

"It's fine, Kacchan," Denki cut in, rubbing the back of his neck anxiously. "I get it. Really. I was just being dramatic before!"

"Don't fuckin' do that shit," Katsuki sneered at him, arms crossed. "You were just whining in there, so fuckin' kiss and get over it. Have your turn."

But Denki's eyes just turned glassy, and Katsuki's breath caught in alarm when he saw Izuku's were, too.

"Kacchan…" Izuku began, but trailed off, wringing his fingers together, body drifting closer to Denki even in his discomfort. As though there were a magnetic pull between them. Something unseen, but there, after all this time—

"Wait…"

"I was gonna tell you, Kacchan, swear!" Izuku burst, tears streaming along his cheeks, glimmering in the moonlight. "It was a long time ago—"

"It wasn't anything serious," Denki scoffed, but the tears were falling from his eyes, too, making the green flecks within them stand out more. And suddenly, Katsuki froze, hands shifting by his sides, because he only had two, and how the fuck was he supposed to wipe up all these tears himself?

"Not serious?" Izuku said, sounding like he'd been punched in the gut. "What the hell does that mean?"

"It means you'd come to me when you wanted to make out when you were drunk, but I knew you were always in love with Kacchan, so whatever was going on between us didn't matter!"

"That's not true," Izuku frowned at him, bringing his palms up to grip Denki's shoulders to face him fully. "You know you meant more than that."

"Then why did you only ever kiss me when we were hidden away?" Denki asked, looking away angrily. "You had no problem kissing anyone else out in the open. What, just embarrassed of me or something? Like everyone else?"

"No," Izuku whined, thumbs coming up to trace along Denki's cheeks, wiped away those tears before Katsuki could remember how to move his own arms. "No, not at all. Nothing like that. I didn't want people to ogle us because… b-because you were special. You are special. And you were mine. Er, f-for a little, I guess."

Denki paused at that, and it gave Katsuki's mind a moment to catch up with the fact that his nerd had basically been in a whole ass relationship with Sparky over here in high school, and no one had known.

Had Denki felt the same exact way Katsuki had back then, when Izuku had kissed those other boys?

Shit.

That night in the common room, a shared dark look, an understanding smile.

It wasn't even about Hitoshi at all. Even then.

"It's fine, 'Zu. You don't have to lie. I know we weren't exclusive or anything."

"I'm not lying!" Izuku cried out, and brought Denki's forehead to meet his own. "Denki, I wanted you so bad. B-but I also wanted Kacchan, and it was so confusing! A-and then you and I would kiss, but then you'd flirt with someone right in front of me, and I know that's just how you are and you don't mean anything by it, b-but it just got in my head! And I didn't know what to do—"

"Just kiss him already, fuckin' nerd," Katsuki snorted. Easy solve, right?

And again, two pairs of eyes shot to him. Like they'd forgotten he was here. Katsuki just smirked at them and shook his head, fuckin' hopeless idiots. He gestured between the two of them, at the way Izuku was clinging to Denki like he was afraid he'd slip away for good this time, and at how Denki was gradually, hopelessly falling into him.

He didn't think it would take too much more pushing. He wouldn't be doin' it if he didn't think the two weren't halfway there, already. The ebb and flow, how Izuku flailed his arms out and coaxed Denki back into him, how Denki tugged himself away only to let himself be pulled back moments later, all of it felt sorta inevitable. Like they'd done this time and again, through the years, hidden away behind doors shut tight so as to not be disturbed.

"S'okay, Freckles," Katsuki murmured, his voice soft. "Pinky promise."

Green eyes lifted to meet red one final time, a familiar glint, that reckless determination in them, and Katsuki knew he had him. Izuku whispered Denki's name, barely there. Denki shied away, uncharacteristically turning into himself in a way that betrayed his true feelings, how much he truly cared in this moment, so many before this.

Maybe even so many after this, if Katsuki dared to look that far ahead.

It sent a curl of warmth through him. Familiar, fresh and inviting. He wanted to wade into it, let it seep into his bones and fill him to the brim until he turned gooey and boneless.

Katsuki nodded to his boyfriend, and that was all that was needed. He didn't know when his hand reached out towards the blonde, fingers tentatively inching their way up his arm, to his shoulder, playing with the hair along his nape. Denki shivered, lids falling slightly as he relaxed, swayed forward.

"'Zu…"

Izuku wound Denki up into him, arms coiled around him carefully as he tucked him into himself, like they were one being instead of two. Slowly, their mouths met, and Katsuki held his breath as he watched. It was achingly slow, every slide of lips, each exchange of breath. Denki was still stiff, as though he was scared to move, to reciprocate too much, give more away than he'd be able to take back. But Izuku was on a mission, painfully patient as he let his lips brush delicately against Denki's.

He wasn't smiling now. Not like he did when he kissed others in the dark. Not like when he knew exactly what he was doing, taking someone apart and leaving them in shambles, riling his boyfriend up in a drawn out foreplay that left Katsuki snarling with possession. No, this was tender, full of an unexplainable promise. Izuku was moving with a purpose, determined to leave triumphant.

"Denki," he exhaled between kisses. Over and over again. A whine, a plead. Denki broke down more with every whisper, collapsing further until Izuku was supporting his full weight, fingers tangled into hair and mouths opening eagerly.

The first time Denki moaned, Katsuki about passed out. A pathetic little noise, quieter than the ones Izuku liked to make for him. Izuku's used it as an opportunity to lick into Denki's mouth, turning their kisses from chaste to a slow make out. More noises rose from the both of them, and Katsuki only now realized his hand was still attached to Denki, keeping him from straying too far from him as he fell into Izuku's strong orbit.

Izuku grew hungrier the longer Denki let him kiss him, that whisper-thin patience ready to snap the moment Denki gave the okay. He was still whimpering, they both were, and Katsuki's mouth went dry as he pictured them together, moving as one in tandem, light noises crescendoing into heated pleas, unrestrained gasps and cries of pleasure.

Before he could register it, Katsuki hooked his fingers into Denki's collar, tugging lightly. Not enough to hurt, or even choke him. Just enough to convey his own want. Izuku chuckled into Denki's mouth, then crowded forward until Denki's back was flush against Katsuki's front. Instantly, so easily, Katsuki let his arms wrap him up protectively, head burrying into the crux of his neck.

Mine, his mind whispered. He was too dizzy to deny himself, and let his mouth kiss up and down Denki's soft skin. Never before had he wanted to engage with any of the other boys. Always content to just let Izuku take what he wanted. But now.

With Denki.

His kisses grew sloppier, sucking lightly, tempted to leave marks all over his perfect skin. Leave people wondering who got to him, who staked their claim on that thin neck. He'd have to leave a trail of them, make sure they peeked out from where Denki wore that ridiculously hot collar that was part of his hero suit.

"'Zuku… Kacchan—" Denki gasped towards the ceiling suddenly, and Katsuki's eyes shot open to see his boyfriend mimicking his own movements, kissing and sucking along the other side of his neck. Denki arched into Katsuki's touch, squirming, little moans leaving his lips without his permission.

"Kacchan?" Izuku whined, giving Katsuki those big fuckin' eyes he was weak for. Denki was breathless between them, arms tangled around Izuku's neck even as he let Katsuki support his weight. "Can we pretty please take this one home with us?"

…Fuck.

Denki's eyes fluttered open just then. It took a moment for them to focus, before coming down to look at Izuku, just for a second to gauge the look on his face. Painfully sincere, aching. Then, he tilted his head back, letting golden eyes flushed with desire meet his own. His lips were shiny, not yet swollen enough due to the rather gentle treatment from Izuku. Katsuki was overwhelmed with the urge to bite, mark, claim. His hands trailed back and forth along Denki's waist, having untucked his shirt somewhere in their kissing, fingers leaving goosebumps along his skin.

Green and gold, like the afternoon sun shining gentle rays through the woods behind Katsuki's childhood home. Motes of dust shone like sparkles, the sway of leaves stealing away his breath. He was under some sort of spell, he was convinced, uneager to wake up, to ever leave this haven he'd stumbled upon. He'd turn greedy, hoard them to himself, return the comfort and pleasure tenfold, for as long as they'd let him.

"If he comes with us," Katsuki's breath was hoarse, but he forced himself to continue. Tangled a hand up in green curls, pulled him forward, too. "We're keeping him."

Izuku's smile was gorgeous, luminescent in the moonlight.

"What do you say, angel?" Izuku whispered into Denki's ear.

And Denki smiled. Raw, vulnerable, true. Beautiful.

It was all Katsuki needed.

"Kacchan," a voice whispered in the dark. His head was spinning, that nickname echoing from all sides. Chapped lips moved along his neck, Izuku, and Katsuki's arms reached out for Denki's lithe body, so much thinner than Izuku's, perfect all the same.

Izuku had practically dragged them out of that event hall, damn near activating his quirk in his haste to get them both home. Denki giggled from where he held onto both of their hands, little static shocks of excitement coarsing up Katsuki's arm.

They'd tumbled into their apartment in a heap, Izuku's lips back on Denki's before Katsuki could kick the door closed. They didn't even pause to turn the lights on, just stumbled through the dark hallways by muscle memory. Denki let himself be led towards the bedroom, Izuku tugging his at his clothes in a haste he'd uncapped on the journey home.

"Slow down, nerd," Kastuki chided, but his voice was laced with warmth and affection. Izuku released himself from Denki's neck with a pop, angry bruises already forming.

"Sorry," he smiled sheepishly, and Katsuki tugged him in closer.

"Breathe," he instructed. Izuku got like this sometimes. Frantic, letting his lust take control, eyes wired and seeping out a glowing green that he only got during the heat of a good battle.

"Yes, Kacchan," Izuku exhaled, following Katsuki's deep breaths.

"There you go, baby," Katsuki praised, and leaned down for a quick kiss. But Izuku wrapped his arms up around his neck, kept him there, nipped his lower lip and whined like he still wasn't getting enough.

"I'm dead," Denki said, his own hands petting up and down Katsuki and Izuku, as though to convince himself they were real. "I died and somehow sweet talked my way into heaven."

Katsuki rolled his eyes. Drama queens, the both of 'em.

"Want you both," Izuku whimpered, the prettiest little sound. "Please?"

"Anything for you," Katsuki promised. He'd said it a thousand times before, would say it countless more times, as long as Izuku asked.

Izuku paused, pulled away to look at him. Katsuki arched a brow in question.

"Erm. I've been a little greedy, huh?"

Katsuki barked a laugh. "Impossible, nerd. You deserve everything."

Still, Izuku's cheeks pinkened, and he shifted. He looked to Denki, who was just standin' there, smiling like he did when he overused his quirk. Lopsided and stupid with happiness.

"Wanna share. He's ours, right?" Izuku asked, and gave a purposeful look to Katsuki.

Oh—

Katsuki straightened up, eyes landing on Denki. He watched as the words settled onto the blonde, and he took in the meaning. Awareness returned to his face, and his gaze flickered to meet Katsuki's.

There, for just a moment, Katsuki saw the want there for him, too. Like it'd been hidden away for a long time, but begged to be seen now, reciprocated. Katsuki was moving on his own, both arms reaching for Denki even as he let that veil fall over him again. A nasty habit, and Katsuki was determined to train it outta him, let him feel everything unrestrained, teach him how good he would feel if he just let it all out.

"Sparky," Katsuki said, his voice low and grating. It sounded right, being said like that. And Denki let Katsuki pull him in, hands coming up to cup his jaw, thumb tracing over his kiss-swollen lips.

"Kacchan," Denki said, and Katsuki smiled, big and goofy. He felt delirious with them, wanted to hear all the ways he could get both of them to moan his nickname like that.

"Only for you two," he replied, relishing the way Denki's eyes widened momentarily as Katsuki closed the gap between them, bringing their mouths together.

He wasn't patient like Izuku. He let his desire take over quickly, trusting that his boyfriend had warmed Denki up enough. Denki's mouth opened willingly, and Katsuki moaned at Izuku's lingering peppermint taste, then licked further, along the ridges of Denki's teeth, tongues tangling as he searched for more. Denki was sugary sweet, like a toasted marshmallow at the end of a summer day. Katsuki felt drunk off of him, quick to crowd him against the wall, earn a real whimper out of him, feet kicking his legs apart to fit a thigh between them—

"Kacchan," someone said—Izuku, because Denki's mouth was still busy being devoured by Katsuki's. Katsuki pulled back, forcibly removing himself lest he strip Denki of the rest of his clothes and have him right here in the hallway. Izuku only laughed, light as air, and pulled them the rest of the way to the bedroom.

Katsuki was still dazed, walking slowly as Izuku attached himself to Denki again, falling to the bed. Denki scrambled on top of him, legs straddling him. Their hips moved together in practiced motions, two souls reuniting, seeking more friction, and Katsuki about fuckin' drooled thinking of all the times they'd done this before, at the thrill that he got to watch, be a part of it now.

He moved to the bed, laying next to Izuku. He'd met his match, now that Denki had grown more comfortable, content that he wasn't going to be thrown out any time soon. At all, if Katsuki and Izuku had anything to say about it, but Katsuki had a feeling that would be another stubborn battle Denki would put up out of his lingering self-consciousness, denial that they could both be as taken with him as he was with them.

"More," Izuku demanded, and one by one, their clothes left them. Shirts unbuttoned through clumsy fingers and fits of giggles, pants unzipped by one another and kicked off impatiently. Katsuki pulled back to just look at them, his bed full of two idiots in nothing save for their boxers and socks, grinding up on each other desperately.

"Kacchan," Denki whined when Izuku busied himself with nibbling his collar bone, set on giving him a necklace of hickies. "Stop staring and come here."

"Okay, angel," Katsuki laughed, and pressed himself up to Denki's back. Denki's hips shimmied until his ass met Katsuki's crotch, and he hissed, hand gripping onto that waist too tight. But Denki just smiled, like he was exactly where he wanted to be, wouldn't have it any other way.

Katsuki let himself look, just a little longer. Denki's smile, god. He was fuckin' gorgeous like this. He always had been. Katsuki had noticed before, but his whole life up until recently had been too full of Izuku to let himself feel anything else. And suddenly, over the course of one night, it was like his chest had doubled in size, eager to make room for one more. Impossible, he'd thought, but that wasn't true, was it? Any of it, really. Because this hadn't happened over one tipsy evening. No, Denki had always been his, in one way or another. They'd fought side by side, had looked after one another, even back when Katsuki and Izuku were still on poor terms and Katsuki couldn't sort through his own feelings. Back then, Denki had smiled at him, honest and true, hurled insults right back at him like it was the easiest thing in the world. He knew all of Katsuki's sharp edges, hadn't shied away back then. And now, here he was, a panting mess in Katsuki's arms, in Katsuki and Izuku's bed, lookin' at him like he was the whole world.

Kinda like he'd always been lookin' at him.

Funny how that works. How somethin' stares at you like that, patiently, until you're ready to see it, too.

Katsuki wanted to curse himself for not recognizing it for so long. But that would just waste more time, and he was done with that. No more extensive plans, no more steps to capture the hearts of those he wanted. No, because he had everything now, even the things he didn't know he'd been missing, and he'd show them exactly how much they meant to him, feel how strong his grip was on them, determined to never let them go.

Denki caught his lips again, moving lazily against one another. Katsuki let his hands roam, exploring the divot of his ribs, his narrow waist. When his fingers dipped into his boxers, Denki gasped into his mouth, and grinded his hips back for more.

They'd all been in locker rooms together. Had seen the best and worst of each other, covered and cozy piled high in blankets in the winter, broken and bloodied on the battlefield, stripped of everything save for their determination and grit.

It still surprised Katsuki when his fingers strayed down, lower, lower, meeting that wet heat of Denki. He hissed as his hand seized up, mind kicking into overdrive when he realized there was no hard cock there, but Denki's cunt, dripping wet and empty.

"Holy shit, holy fuck," Katsuki cursed, and forced his hand to keep moving even as Denki laughed at him.

"He forgot, didn't he?" Izuku murmured, licking his way down Denki's body.

"Seems like it," Denki grinned, but his voice choked off when Izuku bit down on a nipple. "You ever fuck a pussy, Kacchan?"

Katsuki's mind was still pathetically blank, but his fingers were moving at least. He felt along those wet folds, keenly paying attention to the hitch of Denki's breath, what made his hips arch back more, studying the reactions to learn how to touch him best.

"He hasn't," Izuku chuckled. "But he's a quick learner, don't worry, angel."

"We'll see-oh—" Denki gasped out as Katsuki circled his clit, gently. He knew it was sensitive, Denki's likely more than others given his reactions.

"So fuckin' wet for us, huh, angel?" Katsuki said. "Holy shit, baby. You're so warm 'n wet, feel so good already." He didn't know what was coming out of his mouth, just that he was helpless to stop any of it. Denki seemed to enjoy it, drinking up every word as his breath came in quicker gasps, and Katsuki let his fingers dip down, prodding gentle as he slowly sunk a finger in.

"Kacchan—"

"That's it," Katsuki said, and let his teeth sink down on Denki's neck, earned a loud moan out of him. Izuku had paused to watch, eyes roaming where the two of them met, the clumsy way Katsuki's hand moved beneath the boxers.

"Make yourself useful, nerd," Katsuki said after giving Izuku another moment to stare. His boyfriend blinked a few times, blushing and apologizing as he shifted to pull Denki's underwear off. Katsuki craned his neck to get a look, letting out a moan of his own as Izuku grinned, plopped himself down on his stomach to get a front row seat to Katsuki finger-fucking Denki.

Without the thin underwear barrier, the sound was downright lewd. Katsuki was used to using too much lube to fuck Izuku, but this was something else entirely. It felt like some slumbering, carnal piece of Katsuki had awoken, and his mouth watered, cock throbbed painfully as he ached to sink into that tight wet heat.

"You're fuckin' gorgeous," Katsuki murmured when Denki squealed at the cool air hitting his skin. "That smooth cunt was made for my fingers, huh? Fuck, look at you."

"It's my quirk," Denki groaned, sounding equally embarrassed and turned on at the sight of Izuku working his way between those legs, tongue darting over his lips as he crept in closer. "Singes off any body hair other than on my head."

"S'hot as fuck," Katsuki said, and let his fingers plunge in deeper, curling them kinda like how Izuku liked. It was worth it, since Denki cried out sharply, nearly headbutting Katsuki in his fervor.

"Told you he's a quick learner," Izuku whispered, eyes fixed on Denki's blissed out face as he lowered his mouth to his clit, taking his time to run little circles around it with his tongue. Denki keened, arching more, and Izuku just held on tighter, forcing him still so he could get to work.

Katsuki had to shift the angle of his hand a little to let Izuku in more, explore with little kitten licks that had Denki falling apart. Way too fuckin' sensitive, Katsuki thought. They'd have to get a few orgasms outta him before someone fucked him, just to make him last longer.

There was no mistaking when Denki came. If his volume didn't give it away, his electricity going haywire and zinging right into Izuku's mouth, making his hair damn near stand on end did the trick. Little lightning bolts had Katsuki tucking his head into Denki's neck to avoid, but whenever they grazed his cheek, he just felt a heady pulse of arousal, and pressed his own hips forward with a groan.

"More, more, more," Denki begged. His eyes were screwed shut, and Izuku's hair had calmed down, mouth thoroughly occupied again, wringing another orgasm out of Denki. Katsuki forgot to move, forced his fingers to keep going and getting more pretty noises out of their angel.

"Holy shit. Aren't you perfect?" Katsuki murmured, sucking more bruises into Denki's neck. "You didn't just wanna kiss 'Zuku, did ya? You wanted him between those pretty little legs of yours. Takin' you apart, huh? You're just a little slut for your 'Zuku, aren't ya?"

"Yes," Denki groaned, and Katsuki smirked down at a blushing Izuku. "T-tried to be so patient and wait my turn. But 'Zu didn't look at me. Didn't want me."

He was pouting again, but Katsuki saw through it, and offered him a mocking coo in response. He slowed his fingers, and Izuku's eyes drew up to look at Denki.

"Knew if I got my mouth on you, I wouldn't be able to stop," he said into Denki's pussy, between slow, steady licks. "One taste of you isn't enough, angel. Knew I'd wanna devour you."

Loud, unrestrained noises were constantly leaving Denki's throat as they had their way with him. Like a wave undulating, Katsuki ground his still clothed hips forward into the crease of Denki's ass, precum making a mess of his boxers. Denki bucked forward onto his fingers, right against Izuku's waiting mouth. Over and over again, until Denki was cresting that edge again, tipping right over with a sob.

"Fuck yea, there's our little whore. So easy for us, huh? Stranglin' my fingers every time you cum, holy fuck."

He could've gone all night like that, but Katsuki was eager to fill Denki more thoroughly. Ideally with both him and Izuku before the night was up. He waited for that cunt to stop fluttering around him, felt Denki relax and turn into a puddle in his arms, then slowly pulled his fingers out. Sopping wet, glistning in the lamp light. Izuku pulled back to examine the digits before raising his eyes to Katsuki, looking up at him through those long lashes in a question.

"Go on, Freckles. Have a treat," he said, and Izuku happily obliged. He surged forward, licking up and down Katsuki's fingers. Tongue dragging, moaning dramatically, like it was the most delicious thing he'd tasted. Fuck, Katsuki was jealous. Denki's eyes cracked open to watch, only to let out another groan at the sight.

"My turn," Katsuki said, and dipped his fingers back inside of Denki, earning a hiss of protest out of him that went ignored. He swirled his fingers around, massaged that spot he'd been abusing earlier, just a little more 'cause he couldn't resist. Denki writhed and tried to squirm away, muttering half-coherent words that Izuku covered with his mouth, kissing him deeply. Denki relaxed again when Katsuki retrieved his hand, and they paused their making out to peer at Katsuki licking his own fingers clean.

"Damn," he said, and crooked a brow at Izuku. "Next time, I'm eating him out 'til he cries."

Izuku whimpered as he pouted, and Denki's eyes widened.

"Next time?"

Tch. Like he still couldn't believe it.

"Shut up, Sparky," Katsuki said, and pried those thin thighs wide. "Who are you letting fuck this desperate cunt first, huh?"

"I literally never thought I'd end up here in my life. I'm still not convinced this isn't a scary good lucid dream, so. Just do whatever you want to me."

"So much I wanna do to you," Izuku murmured, and pressed himself between those legs, claiming the first fuck of the night. "Wanna make you cum forever, angel."

"I think I'll pass out," Denki whimpered. Katsuki chuckled, helping Izuku as he impatiently tried to kick off his boxers.

"S'okay," Katsuki replied. "We can keep going if you do."

"God, yes. Holy fuck, the hell good deeds did I do in a past life to deserve this now?" Denki said, taking quick, measured breaths as he gazed between the two of them. "Yeah, do whatever the hell you want to me. Use me however you want."

Izuku frowned. "But Denki—"

"Shh, no, 'ZuZu," Denki protested, and tangled his fingers in green curls, letting his nails scratch along his scalp. Izuku instantly melted into him, eyes lidded. "I know what you're gonna say. Just lemme be slutty right now for you, 'kay? Then, in the morning, when I start to freak the fuck out, you can get all gushy with me."

Izuku didn't look entirely convinced. He studied Denki's face, eyes tracing over the sharp jut of his cheekbones, along blonde lashes that fluttered under his attention.

"Gonna spoil you," Izuku said after another moment of quiet, and nibbled his lower lip in that way when he was really concentrating. "Gonna make you feel so good, Denki. You won't have any room to worry."

"Please," Denki whined. He was squirming impatiently now, bringing his legs up to hook around Izuku's waist. Katsuki couldn't help but reach a hand out to trace along his interlocked ankles, making golden eyes meet his own.

"I mean it. Do whatever you want with me," Denki said, taking his time to look at them both. His face flushed a light pink, like a ripe peach Katsuki wanted to bite into, and he lowered his eyes. "I'm yours, after all."

Izuku shot a look to Katsuki, a wild grin overtaking his features before he leaned in a kissed him slowly. Katsuki groaned as he licked up the taste of Denki that still lingered, reaching down again so his fingers could dip into the source.

"Ya hear that, nerd?" Katsuki said against his mouth. "He belongs to us."

"He's ours," Izuku nodded. His eyes were closed, as though he was letting the words soak in fully, unable to believe he was here with them both. Katsuki watched him, even as they kissed. Denki's eyes were on them still, legs obscenely spread while Katsuki touched him delicately, a tease more than anything. Fuck, he was still so wet, it was drippin' down Katsuki's fingers, pooling onto the bedspread. A mess between his thighs already. Katsuki couldn't wait to clean Izuku's cock after he fucked him, would take him down his throat right after he came to taste them both at once.

When he was certain Izuku was lost in the sensations of their kiss, he brought his wet hand up to his cock, coating it with Denki's slick. Izuku hissed in surprise, and Katsuki bit his lip harshly.

"Ready to play out your wet dreams, nerd?"

Izuku's eyes were already lust-ridden. He nodded, and turned back to Denki. Cradled his head, something precious. Burried his face into Denki's neck as he plunged his hips forward little by little, cock disappearing into his cunt.

"So hot, so tight, oh my god Denki, oh my god. So good, angel. Perfect, gonna make you feel so good, gonna make you cum so many times. Gonna make you scream—"

Izuku's hips moved slowly, pressing himself in deeper. With every thrust, his control slipped a little more. Toned muscles strained, aching to keep himself in check, that perfectly sculpted ass humping steadily into Denki more and more with each small movement. Katsuki's hand roamed all over him, up and down his back, feeling the flex of muscles, palming at an ass cheek, pulling it apart as he eyed his own prize.

Soon, he told himself, but marked each shiver he got out of Izuku as his fingers prodded closer to his hole. He could be patient, watch as his perfect boyfriend took apart the brattiest person he knew. Reduced him to a babbling mess, whines that Katsuki would never fuckin' forget, makin' a real pretty song for just the two of them.

Denki's eyes were closed, head tilted back on the pillow. His own hands couldn't sit still, shifting from Izuku's hair to his shoulders to his back, nails dragging everywhere and leaving angry marks, red and raised. Katsuki leaned forward to lick along them afterward, eased the sting, left a nibble here and there. He couldn't get close enough, loomed over them to look into Denki's blissed out face, felt each exhale as he let out a little ah, ah, ah with every one of Izuku's thrusts that were turning harder, sloppier.

"C'mon, nerd, that all you got?" Katsuki taunted. "Our angel here is stronger than he looks. Give him a real fight, would ya?"

"Strong," Denki whimpered. "Chargebolt strong. Can take 'Zu… p-please…"

"T-trying to not l-lose it, Kacchan," Izuku groaned. His voice was lower than usual, and he spoke through clenched teeth.

"Thought you wanted to give our baby boy what he wanted," Katsuki chided, and ran his tongue up Izuku's neck, speaking directly into his ear. "Give him a reason to stay, yeah?"

Izuku moaned at that. "Yeah, Denki, angel, ours, you're never gonna leave, never gonna want another cock. Just mine and K-Kacchan's," he panted, each word punctuated with a harder thrust that had Denki yelping, body shifting up the mattress. Izuku held on, tugging him back whenever he shifted too far away, just pulled him by the shoulders or hips or wherever he could reach, right back onto his cock, deeper. "Mine, mine, mine."

"There you go, baby," Katsuki said, and moved to the nightstand drawer. Denki was drooling, eyes barely open as he watched Izuku lose it entirely, chasing nothing but his own pleasure as he gripped hard enough to bruise, let his hips slam into Denki's thin frame. It was loud, between the bed creaking, hitting the wall with Izuku's powerful thrusts, their shared panting and moans, the slap of skin, wet with Denki. Fuck, Katsuki could just use that to lube up Izuku, wouldn't even need the real shit at this rate.

"'Zu, 'Zu, 'Zuku," Denki cried out. "Oh, god."

"Denki, so fucking good, fuck, wanna make you cum—"

"M'close. Baby, baby, make me cum? Please, I'm good? I'll be good, I'll be so good for you, promise, promise, 'Zu—"

"Yeah, angel, you're so fucking good for us. Feel so good on my cock like this. Bet Kacchan just loves watching you, too. Make more of those pretty noises for him, okay, angel? You're doing so, fuck, so good…"

"Yea, yes, yes," Denki breathed, glazed eyes sliding over to meet his. Katsuki was frozen to the spot, hand on a capped bottle of lube he'd been planning to use to open Izuku. But he was in a trance, watching as his two angels made each other feel good, talked about him to make themselves feel even better, the way those deep golden eyes rolled back, and he reached a hand out, and Katsuki took it immediately, felt that palm squeeze as he came—

"Holy shit," Izuku cursed, hips jolting as Denki came on his cock. His own eyes rolled back in his head, and he resumed his thrusting with a renewed fervor, milking Denki through his orgasm as he twitched on the mattress below him. "Holy fuck, angel. You f-feel so, haah, so good, can't stop, m'sorry, can't stop—"

"Mark me," Denki slurred, head lolling to the side. "Wanna feel your hot cum all over me. Please?"

This time, both Izuku and Katsuki cursed, and Izuku thrust in again, again, again, until he was groaning and pulled out, stripping his cock mercilessly as he painted Denki's cunt, stomach, all the way up to his chest in endless waves of cum.

And, yeah, it wasn't a fuckin' surprise when the nerd was still hard. He was groaning still, hand slowing to a lazy pump as the last little twitches of his cock spurted out a few more drops of cum. Lost in his own haze, Izuku dipped his cock forward to run along Denki's wet folds, let his cum mark him up real good all over his pussy.

"Can't stop…" he rasped, and sank into Denki all over again. Denki whined, overstimulated, and Izuku just murmured his apologies, over and over again, not letting up, not even slowing as he rocked in hard, deep, swallowed up all of Denki's pleas.

Katsuki tossed the lube to the side, forgoing it entirely. Instead, he ran his fingers through Izuku's cum, still coating Denki's abs, collected it as best as he could.

"Open wide, angel," Katsuki rasped, the only warning he gave Denki before pushing his cum-soaked fingers past his lips. Denki suckled on immediately, moaning as his hands came up to hold Katsuki there, letting him take his time running his tongue along his fingers to collect every drop. His teeth raked against Katsuki's fingers with every thrust Izuku gave him. Katsuki fed him cum twice more, until he seemed satisfied and let his head fall back onto the pillow, surrendering to all that Izuku was giving him.

"Your turn, nerd," Katsuki said after collecting some more cum. Izuku turned to him happily, sweat glistening along his temple and biceps, opened his mouth obediently. Katsuki rolled his eyes, and moved his hand around to prod at his hole instead.

"Eep!" Izuku squeaked, tensing up as Katsuki coated his rim with his own cum. He immediately slowed his movements, eager to let Katsuki work him open.

"C'mon, baby. Take it, yeah? You're a good boy, too, y'know," Katsuki said, and used his other hand to gather more cum, painted it along Izuku's lips just so he could lick it off. Izuku held his breath, brows knitting together as he let Katsuki do as he pleased, body gradually relaxing as Katsuki fingered him roughly. It wasn't wet enough, but did the job. Besides, 'Zuku liked the pain, and Katsuki liked the idea of fucking him with the wetness of cum instead of lube, so it was a win-win.

"You guys are nasty," Denki panted, but he was smiling still.

"Shut it, or I'll stuff your throat with so much cock you can't breathe."

Denki peeped an eye open, wide. "Promise?"

Katsuki snorted, then shoved Izuku back between the two of them, maneuvering his hips roughly to where he wanted them. Tugged his own boxers the rest of the way down, and lined himself up. He and Izuku let out matching hisses as his cockhead breached his rim, entering him slowly. They'd fucked just this morning, and Izuku was still pretty warmed up from then, thank fuck. Katsuki did his best to control his breathing until his hips met Izuku's freckled ass.

"Oh my god," Izuku said, thoroughly sandwiched in the middle.

"You like that?" Katsuki asked as he started to move his own hips, jostling Izuku deeper into Denki in the process. "Heh. 'Course you do. You're gettin' fucked from all sides. Tell me, nerd. Fuckin' say it."

"So good," Izuku whined, and started moving his own hips, too. He instantly set a rough pace, face screwed up from the pain of being filled too soon, and Katsuki bit down hard on his shoulder to give him a new sharp pang of bliss to focus on.

Things got hazy after that.

Denki's breath was hot on Katsuki's face, lips right there. Izuku had burried his own face again, so it was easy to lean in and suck that tongue into his mouth. They were both moaning, all of them, and Katsuki couldn't tell if Izuku or Denki was begging for it more, harder, deeper. Izuku was hot around him, perfectly molded to fit his cock by now, but that didn't make the pleasure less blinding. His eyes rolled back as he succumbed to it, letting it guide his movements, mind flowing away from him entirely.

"Kacchan," Izuku cried out at one point, fisting Katsuki's hair as he reached up behind him, tugged him in closer, content to let the momentum of Katsuki's thrusts push him deeper into Denki. "F-feels amazing, Kacchan. S-so big, so perfect…"

A whimper from beneath them, and Katsuki caught Denki's watery eyes, mouth moving, trying and failing to form words. His lower lip quivered, cheeks flushed.

"Heh, you jealous, angel?" Katsuki smirked, unable to stop himself. Because playing with Izuku, teasing and prodding and lobbing out little comments like that each time they fucked, learning what made him clench down on him, what made him cry out, all of it thrilled Katsuki. He tentatively dipped his toes into those waters at first, but quickly found anything he said had Izuku writhing for more. Denki was a brat, that much was apparent in his every day life, and Katsuki honed in on him now as the mirage fell away, too many orgasms to count leaving him non-verbal, Katsuki's momentary focus on Izuku causing him to pout.

Denki was a pathetic thing like that, couldn't even whine. Just tried to nod, little noises leaving the back of his throat. Face looked fuckin' devastated, brows knitted together as he tried, oh, he was trying so hard to be good for his 'Zuku, take everything he was poundin' into him and more.

"We're a package deal, thought you knew that," Katsuki said, leaning in just shy of brushing their lips together. Izuku just groaned again, latched onto Denki's neck. "Gotta be a good boy and share us, hm?"

"M-mm—"

"Mmm," Katsuki mocked, biting his lip in a grin as Denki's face fell apart even more, tears brimming in his eyes. Good, so fuckin' pretty, just like his Izuku. Katsuki fucked harder into his boyfriend, wondering if he could bring them both to tears at the same time. Sobbing messes beneath him, and he'd have no choice but to make 'em feel so good, forget their own names, nothin' but Kacchan, Kacchan, Kacchan echoing around the room until the end of time.

"Mine," Denki shouted finally, the noise garbling off into a moan as the word renewed Izuku's vigor.

"S'right, angel. We're all yours," Katsuki assured him. His limbs were slick with sweat, bodies sliding together in a heap, heart damn near pounding out of his chest from how hard he was fucking them. And still, he couldn't stop, chasing that white hot pleasure as it coiled up in his lower abdomen, left his toes fuckin' tingling.

"Kacchan, h-he feels s-so good," Izuku hiccuped, fuckin' gorgeous. Katsuki fisted his hair, pried his head back so he could get a look at that pretty, flushed face. Cheeks red, freckles standing out even more, tears rivers down his cheeks.

"Look at your pretty 'ZuZu," Katsuki grinned. Denki's eyes were unfocused, but traced over them until they landed firmly on Izuku. "Look at how good you're makin' him feel, angel. S'this what you wanted? To wreck him like this? Make him unable to forget how it feels to be inside of you?"

"Yes, yes, yes," Denki sobbed, his own tears pouring over. Katsuki turned feral, fucked into Izuku until he knew it hurt. Didn't stop, wouldn't stop, just kept fuckin' going, kept chasin' that feeling, god, it felt so fuckin' good, it was unreal, and Katsuki lost track of himself entirely. Everything else fell away, hearing muffled, nothin' but Denki's sobs, Izuku's whined murmurs. He focused on that, the sound of his own cock fucking Izuku's cum deep into himself, how Denki was so wet now that it was ruining their sheets, fuckin' all over Izuku.

Katsuki and Izuku both cursed when Denki came again, that electricity doing nothing to stop their relentless fucking. Addicted, that's what they were. Didn't know they were missin' something, this key part of themselves. Katsuki was convinced they wouldn't leave this bed for a week, wouldn't get through half of what he had planned in that time. He'd fuck them from every angel, bend them over any surface he could find, hell, bend them over each other. Take what he wanted, what he couldn't live without now, grow fluent in all of Denki's sparks and static shocks.

"Shit, haa" Izuku cried, fuckin' baby. "Denki, oh angel…"

"You close, Freckles?" Katsuki drawled. There was so much sweat between them, it was damn near impossible to get a good grip. Little explosive pops went off every so often around them, and Katsuki felt his hands heating up as they burned into Izuku's waist, losing that final tether on his own control. "You gonna fill up our angel baby?"

"Mmm, yea, fill Denki up with all my cum," Izuku babbled, thrusting sloppily as he worked Denki through the aftershocks. Denki was half passed out now, head lolling. Katsuki gripped just jaw to hold him steady, dug a thumb into his his cheek to get his attention.

"Look at 'Zuku, baby," Katsuki cooed, and Denki's eyes creaked open, just little slits. It looked like it took all of his energy. "He's gonna breed you full of his cum. How's that sound, Denki?"

"S-so, nrgh—yes, yeah, do that, 'Zu, cum in me," he breathed, words so slurred they could barely understand him. His eyes fell closed again, and Katsuki couldn't have that. Because who the fuck could look away when Izuku came undone? No, Denki would watch, over and over again, as many times as Izuku wanted to fill him up just right, until Denki didn't know what it was like to walk around without 'Zuku's cum drippin' down his thighs.

"Eyes on him," Katsuki said sharply, nipping Denki's cheek for good measure. His eyes popped open in surprise, locking onto Izuku's expression.

"C-can I, Denki?" Izuku asked, his voice giving away how fuckin' heartbroken he'd be if their angel said no. "P-please? Denki feels so good, wanna give him my cum…"

"Yes!" Denki cried out, nails scratching down Izuku's back again, reopening the old wounds from earlier. "Want it, please. Gimme, want it—"

Izuku clenched down on Katsuki's cock when he came, making Katsuki curse and fuck him through his orgasm. "So good, Denki, thank you, thank you," Izuku was babbling again, endless words of praise and thanks as he released another load of cum inside of Denki. And Katsuki could hear the squelch, could fuckin' feel it leakin' out already.

Sweet nothings, that's all he could hear. From himself, or Izuku, he didn't know. Just that Denki was flashing him that gorgeous smile, even as he was actively passing out with Izuku's softening cock inside of him. All it took was a feather-light press of lips from Izuku, the whispers of Kacchan, Kacchan, Kacchan, like a fuckin' dream played out in real life. He was cumming hard, shouting both of their names, explosions popping off around him and singeing the sheets.

He collapsed on top of them, Denki with a loud oof under their dead weight.

"Can't breathe, assholes—"

Izuku squeaked in alarm, and shoved Katsuki off of his back, opting to snuggle up to Denki's side instead. God, they were fucking covered in sweat and slick and cum, but Katsuki's legs were locked up and cramping, entire body wavering. All he could do was nestle in on Denki's other side, trace over Izuku's freckles like he had a thousand times before, drift his lips along the sharp jut of Denki's shoulder.

"Tell me one more time," Denki whispered, still catching his breath. Katsuki opened his eyes, not realized he was on the verge of falling into a deep, peaceful sleep, meeting that forest of evergreen, glowing with new life, excitement, love. And Katsuki nodded at him, pressed a purposeful kiss to Denki's neck, soothing the purpling bruises that they'd both left there.

"We're keeping you, angel," Izuku murmured. Denki smiled, eyes falling closed with a short huff of a laugh, something like relief.

"Good," he replied. "Keeping you both, too."

Morning came, and the sun wove its way across the bedspread, coaxing them awake. Still intertwined in one anothers' arms. Unwilling to move away, even when it was too hot, too crowded. Perfect.

Denki only had a minor spiral, made instantly better when Katsuki kissed his worries away while Izuku murmured his promises and praise into his ear.

It was easy, what came after.

Dinner dates and grocery runs, Katsuki meal prepping for all of them, because both of those idiots were hopeless in the kitchen. Movie nights where Denki tried to throw popcorn into Izuku's mouth, both of them cackling when they'd miss and earn a scolding out of Katsuki for makin' a damn mess. He let them pick what they watched, every time, 'cause he was still fuckin' whipped, how could he not be? Fuckin' gorgeous, glowing eyes meeting his every morning, lookin' up at him after asking a question they knew the answer to, scanning for his own in a busy crowd.

How could he be anything but hopelessly in love?

Katsuki had the best fuckin' boyfriends on the planet. No contest. Take that, world.

Just Kacchan, Freckles, and their perfect angel.

No more room for any extra twinks.