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Katsuki is not a creep. He isn’t, okay? He just—well. Right now he has a lapful of sleepy, tired omega in heat napping on him, and he’s got his face tucked in Katsuki’s neck, and he’s letting out these soft little purrs that vibrate through him, and Katsuki is—
Dying, probably.
Most definitely being tested.
About one little breath away from sinking his teeth in half ‘n half.
It tickles.
And the damn brat just—
He had his pillow with him. And a blanket wrapped around his shoulders. And he yawned and he said oh, hi Bakugou and then I was just going to nap here because it smells like everyone and my heat kind of, you know, it hurts, and then he narrowed his eyes and went you smell nice too, though, and then—
And then Katsuki’s life came to an abrupt, unceremonious end.
And he got a lapful of Shouto.
Shouto, who only presented two months ago.
Shouto, who smells like strawberries and vanilla.
Shouto, who—in his heat-addled state—apparently decided that the best course of action was to straddle an alpha’s lap on the common room couch.
It’s his first heat, isn’t it? His first proper one after presenting. Sensei did mention once that an omega’s first couple of heats can be unpredictable.
Katsuki assumed that meant that they, like, you know.
That Shouto would have to rub his little clit raw. That he’d stay on his back and stretch himself out with his fingers, and maybe he’d cry because the heat aids they gave him weren’t big enough. And then, in Katsuki’s guiltier dreams, he ended up knocking on his door.
Wet and stretched and needy.
And Katsuki would scoop him up and toss him on the bed and squish his mochi cheeks and make him say please.
Or something like that.
He’s not entirely against the concept of buying Shouto ice cream first.
Or taking him out to see a movie.
Or, uh—
Napping together when he doesn’t smell like heat and slick.
Because he does.
He smells like heat, and he smells like he’s wet, and Katsuki is losing his mind while the pretty princess just. Purrs away in his sleep.
His teeth itch.
Maybe—
Maybe just—
Just a little bit?
Just to take the edge off?
He’s close enough. They’re skin to skin. And Shouto’s an omega, and he’s in Katsuki’s lap, and his neck is bare and unmarked.
Katsuki swallows.
He recognizes, logically, that he’s about to do something undeniably stupid.
And the instinct growls at him to stop dragging his feet.
So he pulls back, just a little. And he tips Shouto’s face to the side. And the spoiled brat keeps purring. Katsuki should keep spoiling him. After this. For as long as it takes.
Seems only fair.
He opens his mouth. His canines scrape over Shouto’s mating gland, right at the curve between his neck and shoulder. Shouto’s warm. He’s purring in his sleep. He probably wants—
“Mmph.”
Like a damn cat.
“Sleepy,” Shouto whines. “Let me sleep, alpha.”
“You can sleep,” Katsuki says. “I just need—”
How long has it been? Ten minutes? Ten years? Any length of time in between? They all seem about equally plausible.
“If you bite me,” Shouto says, “then I’m really going to want you to fuck me.”
“Because you already did?” Katsuki asks. “Didn’t look like it to me.”
“Mm,” Shouto says. “I did. That’s why I couldn’t sleep in my bed. But—but I thought you’d yell at me if I came to your room. You know. For being spoiled. And a brat.”
Katsuki huffs out a laugh. “Well,” he says, “maybe you’re my brat and I want to spoil you.”
“Last night you said I couldn’t have cold soba,” Shouto says accusingly. “Clearly, you’re not at all, ah, sympathetic to the omega plight.”
Katsuki grabs him by the hips to keep him still. He’s wiggling around too much now that he’s awake, the brat. He presses his canines harder to the same spot. It would take, he knows. A mating bite. At the ripe old age of seventeen.
It would take because Shouto wants it.
And then sensei would kill them. Or, worse, he’d take a long, paid vacation somewhere tropical, and Katsuki would know for sure that they’ve finally done the impossible and managed to erode the man’s spirit once and for all.
Damn if it isn’t tempting, though.
He’s hard.
He’s hard, and Shouto is sitting on his bulge, even if he doesn’t seem particularly bothered about it.
“I can fuck you?” Katsuki asks. “Right here? You want it?”
“I want to sleep,” Shouto whines. “Everything hurts. And you smell good. And I'm all wet, but that—that part is okay if I don’t think about it, and if I’m sleeping, I can’t—I can’t—”
“Shh,” Katsuki coos. “Poor omega. I’ll take care of you. Did you really think you couldn’t ask? Tch, what kind of idiot do you take me for?”
“I don’t know,” Shouto says. “I just didn’t want you to yell at me. I keep crying. Stupid hormones. I keep crying and thinking about your knot. How is that fair?”
“You can have my knot,” Katsuki says. “I’ll give it to you.”
“Hurts, Katsuki.”
“I know,” Katsuki says, stroking his back. “I know, sweetheart. Don’t worry. Alpha’s got you. Alpha will take care of you.”
“Can I still sleep?” Shouto asks. “Is that okay?”
“Sure,” Katsuki says. “Sure, yeah, just let me—”
He unties his sweatpants, and he slips Shouto’s little pajama shorts just under the curve of his ass, and his fingers brush against the cotton of Shouto’s panties, and they come away damp.
Wet with slick.
“Mm,” Shouto whines. “I’m so sensitive down there. I keep—it’s embarrassing, but I can’t keep my hands off, now. Ever since I presented. Every night. Every night, I have to—I have to play with my clit. I need to do it, alpha. I have to drag slick from my pussy to make it all wet, and that usually makes it puffier, you know, from the—the teasing, and then I can’t hold out, and I clench up and I come. I come so hard. Sometimes I cry. And it doesn’t feel good enough. And I still need more. It’s never full enough. So I keep—I keep going until my wrist hurts. Am I—am I a dirty omega? Do you think so? Do you hate me, now?”
Shit.
Fuck.
Holy fucking—
God.
“Let me see,” Katsuki says. “Let me see, princess. You’re perfect, don't worry. I’ll take care of it for you.”
Carefully, he pulls Shouto’s panties down.
“You’ll take care of my pussy?” Shouto says hopefully. “You won’t bully it?”
Katsuki spreads his labia and presses a thumb to his clit. “Nah,” he says, half-mad from all the wanting, “I’ll be nice, I promise.”
“Okay,” Shouto says. “You’re such a good alpha. I like this.”
And then he tucks his face into Katsuki’s neck again, breathing in slow and even.
Katsuki tries to get his cock out. He fails. Spectacularly so.
“Hey, Shou,” he says. “Baby. Sweetheart. I can barely see what I’m doing like this. What if—we laid you out?”
“On the couch?” Shouto asks. “But it smells like everyone. The cushions, I mean. They smell like everyone. I like your scent better.”
Fuck, he’s really going to kill Katsuki. Probably before he even manages to put it in. And then he’d go with regrets tethering him to the mortal plane, and his ghost would probably haunt Shouto. Are horny ghosts, like, a thing? Can his ghost breed Shouto?
“You can still have my scent,” Katsuki says. “Just—let me readjust a little. I want to take care of you. Properly, okay?”
Shouto nods. “Okay,” he says. “Just—be gentle. It’s my first time.”
Katsuki grits his teeth. He won’t come in his pants like a loser. He will not.
He picks Shouto up, even if he whines and pouts, and he keeps one arm under him to keep him steady, and with his free hand he spreads out his fluffy pink blanket on the couch, so it mostly smells like Shouto instead of everyone else, and then—
He lays him out on the couch, and he tugs Shouto’s pajama shorts and his panties down his thighs, and then he—finally, mercifully—shoves his own sweatpants down and takes his cock in hand.
“Baby,” he says, “can you keep it spread for me? You’re so pretty. I want to see.”
“You’re making me do work,” Shouto says accusingly. “You said I could sleep.”
But he listens. Because he’s a good little omega. Because he’s perfect, and he’s Katsuki’s, and Katsuki is going to fuck him. Right here. On this stupid ratty old couch that smells like everyone.
He doesn’t care.
He just wants—
“Fuck,” he says. “You’re so warm.”
He taps the head of his cock to Shouto’s clit. And then he tries it again. And then he succumbs to his baser urges and he’s basically just slapping Shouto’s clit with his cock to watch how it glistens until the little strands of slick break, and he goes from that to rubbing it back and forth, and—
And then Shouto whines, “Inside, please,” and Katsuki is done for.
“Yeah,” he says. “Yeah, okay, just let me—”
He presses the tip snug to Shouto’s pussy, and he slides in slowly.
“Closer,” Shouto whines. “Come closer. Mean alpha.”
“Pretty sure this is as close as it gets,” Katsuki teases. “I’m literally inside you, princess.”
But he lets Shouto tug him in and wrap his arms around Katsuki’s neck, and he lets him hide there while he fucks into him, slow and deep, and he tries his best not to embarrass himself and last more than three and a half thrusts, and he succeeds, just barely, even if Shouto definitely isn’t helping with the way he keeps clenching and whining ah, there and that’s it, do it harder.
“Who taught you to talk like that, huh?” Katsuki asks. “You’re killing me here, princess.”
What a damn way to go, though.
What a sweet little death.
What a sweet, perfect little omega.
(And now Katsuki is turning into a fucking sap. Great.)
“Nobody,” Shouto says. “Just, ah, feels really good. Are you going to knot me?”
And, just like that, Katsuki does.
He knots, and Shouto is still holding onto him so tightly, and he feels like he can barely breathe, for a second, because it’s nothing like popping a knot into the spit-slick grip of his own fist, and it’s nothing like those silicone toys, either, and it’s—
It’s Shouto, so it’s the best thing in his whole, entire life, actually.
“Oh,” he says, all soft and prim. “I’m so full.”
And then—
He squeezes even tighter around Katsuki’s knot, and Katsuki reaches down and just barely flicks his clit with his thumb, and Shouto lets out this soft little gasp, and suddenly everything feels wetter.
“Um,” he says. “Did I just—?”
“Yeah,” Katsuki says. “Pretty sure you just squirted, princess.”
“Momo and I watched this, uh, documentary? On the omega reproductive system? It kind of covered how that works. And that, uh, it’s supposed to feel really good for the omega. But I couldn’t do it on my own. Even with toys. I don’t like those anyway. Even the fancy ones feel—” He pauses, nose scrunched. “—all wrong.”
“Yeah?” Katsuki asks, arching an eyebrow. “So? Did it feel really good for the omega?”
Shouto pulls back just to pout at him. “Don’t be mean,” he says. “You know it did.”
“Well,” he says. “It was my first time too, you know. Maybe now I want my performance review.”
Shouto throws a glance at their intertwined bodies. His cheeks get all pink. “Later,” he says. “You’re still, um, performing. Technically. And you didn’t let me sleep yet.”
“You still want to sleep?”
“Mm, take me to bed, alpha.”
“Spoiled,” Katsuki huffs. “You want me to carry you like this? Tied to my knot?”
“Well,” Shouto says. “I suppose we could wait until it goes down. How long does it usually take?”
Katsuki shrugs. “Not sure,” he says. “I’ve never knotted you before. We could be here all night.”
Shouto swats at his chest. “And you didn’t even take me out on a date beforehand,” he says. “You really are such a mean alpha.”
Katsuki pinches his cheek. Because he can. Because Shouto won’t flee. Because they’re as close as they can get. And that’s pretty nice. And then he leans down and bites the same spot. And then he kisses a little lower. And then he nips at Shouto’s mating gland again, like before.
“I can make it up to you,” he says. “Like this. See?”
“Sensei will be mad,” Shouto whines. “I’m not old enough to get mated yet. And you’re eighteen already. I could say you took advantage of me. How do you know I won’t?”
“Because,” Katsuki says, “I know you like me.”
Shouto huffs. “Well,” he says. “You’re not wrong, exactly.”
So. Katsuki bites down. Tomorrow, he should probably take Shouto out for ice cream. Or something. But, for now, this is pretty nice. The both of them, together. Pressed close. Katsuki’s mark on Shouto’s neck.
“Ah,” Shouto says. “That stings.”
“Sorry,” Katsuki says. “I tried to be careful.”
“It’s okay,” Shouto says. “I can feel the bond settling. This part is nice. I feel all warm. And floaty.”
“Yeah,” Katsuki says. “I can feel it too.”
They’re both quiet for a bit.
And then Shouto says, “You know you have to make me soba all the time now, right? You can’t say no, because you’re my alpha. I’m yours. You’re supposed to take care of me.”
Katsuki laughs.
And then he kisses Shouto right in the center of his soft pink mouth.
“Sure,” he says. “Anything you want, princess.”
“Mm,” Shouto says. “That’s nice. And I promise I’ll eat my veggies when we have pups.”
Katsuki’s cock twitches. Pups. Pups with Shouto. A whole bunch of ‘em running around and calling him mommy. That’s—
“You should eat them anyway,” he says, heat crawling down his neck. “Spoiled omega.”
Shouto smiles. He leans up for another peck. “You like me,” he says. “You’re going to keep me forever.”
And—that’s it. Forever. Sounds easy enough.
“That’s why you should eat your veggies,” Katsuki huffs. “So you’re healthy. Forever.”
“Well,” Shouto says. “I could be persuaded. We have time.”
Yeah, they do. They have time. And they’re going to spend it together.
Even if sensei yells about it.