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Wei Ying and Lan Zhan have been close since the first one was taken in by Lan Qiren, so much so that they grew up sharing a room. Lan Zhan never made Wei Ying feel bad for invading the bedroom that was supposed to be all for himself, and Wei Ying always tried to be respectful of Lan Zhan’s personal space.
At least until they hit puberty.
By the time Lan Qiren realizes that having an omega teenager and an alpha teenager, not related by blood, living under the same roof is a recipe for disaster, it’s already too late.
They’re too quiet about it, too careful not to interact in any way the man would classify as inappropriate when he’s around. But late at night, in the darkness of their room, he has no idea of what they do. Nor does he realize what they do whenever they are left home alone.
Or alone anywhere, to be honest.
“Fuck, Lan Zhan!” Wei Ying’s palms are on the wet wall in front of them, holding on for dear life as his alpha fucks him from behind. “You’re so good for me, alpha, so good. You fill me up so well.”
His moans hit Lan Zhan the same way they always have. It’s been almost five years since they’ve been doing this, but the hunger for more and more Wei Ying has never diminished. Not since the first stolen touches in this very shower, not since the nights they learned each other’s bodies in the dark of their shared room while Lan Qiren slept down the hall. When it comes to Wei Ying, Lan Zhan can never be truly satisfied.
Today is one of those rare opportunities in which Lan Zhan isn’t wearing a condom. Just pull out, Lan Zhan, Wei Ying said when they realized they had used the last one the night before. We don’t have time for you to knot me, anyway. We’ll be late for school if you do. Even when he’s thrusting inside deep and deliberate, the wet slap of skin echoing louder than the shower spray, it’s not enough. Some dark part of his brain itches to be impossibly closer to the omega.
“Mnh! Yes, yes, right there, Lan Zhan, right there!” Wei Ying moans, arching his back. His walls clench around him, hot and perfect.
“Wei Ying,” Lan Zhan groans. He bites the omega’s shoulder, fighting against the urge to come inside of him and flood him until there is no room for anything else.
Instead, he trails kisses down Wei Ying’s neck and spine, and moves a hand to the boy’s front to wrap his fingers around his slick cock. The omega moans as he slides his hand up and down in fluid, rapid motions, teasing the head with his thumb with every stroke.
“A-alpha, alpha!” he says, reaching back to hold onto Lan Zhan’s body. “I’m gonna cum! I’m…I’m—ngh!”
Lan Zhan wants to stay inside him. All of his alpha instincts are telling him he should knot this omega, breed him until he loses the ability to walk. But he knows that isn’t wise.
He pulls out as Wei Ying shudders and spills on his palm. Lan Zhan strokes himself with his other hand a few times until he paints the omega’s butt cheeks and lower back white for a few moments until the water washes it away.
“I love you,” Wei Ying murmurs as he recovers his breath. He turns around to kiss him. “I love you so much, Lan Zhan.”
Lan Zhan’s chest feels warm. “Love you, too,” he says back.
They kiss lazily for a while before they actually wash up and exit the shower. They change into their school uniforms, and Wei Ying complains, like every time they fuck, about Lan Zhan leaving hickeys way too high in his neck for him to hide them. And, like every time as well, Wei Ying does not really make any effort to hide them.
Lan Qiren has stopped trying to scold him whenever he sees them, has ceased screaming at him for ‘going around messing with every alpha he finds’, as it’s never worked to make the marks stop appearing.
If only he knew who was leaving them.
Lan Zhan loves Wei Ying so much. He would give anything for the omega to remain at his side at all times, for the omega to never leave his sight.
But Wei Ying is his own person. Astoundingly talented, brilliant person, with his goals, dreams, and aspirations. Dreams that may lead him abroad to study, and away from him.
If you asked Lan Zhan about it, he would tell you that he supports Wei Ying in whatever he plans to do. He believes the man can achieve whatever goal he sets. But deep down, Lan Zhan knows that he’d prefer Wei Ying to stay with him forever. In the darkest parts of his mind, he’s imagined locking him up a million times inside his room.
No wonder he likes tying him up during sex so much…
Oh.
Oh.
What if he hadn’t pulled out today? What would’ve happened then? Would Wei Ying stay if he gets pregnant?
What if he doesn’t pull out next time?
Lan Zhan’s heart is beating so hard against his ribcage that he's scared Wei Ying will hear it and know that something is wrong.
But the omega is too hazy to notice, all his pre-heat symptoms reducing him to the basest of needs: mating with his partner until he passes out.
“You're so cruel, Lan Zhan,” he whines, pushing his ass towards him. He's lying chest-down on the bed with his butt in the air, leaking slick down his thighs. “Fuck me already, please.”
He's been eating him out, opening him up with his tongue and fingers, savoring the omega’s delicious flavor, all while trying to calm his nerves from what he plans to do tonight. He only has one chance. Wei Ying isn't dumb enough to not understand what's going on once he feels the knot inflating inside of him.
Lan Zhan doesn't like fucking him from behind. Sure, the angle is great, he gets to see that beautiful back arched and glistened in sweat, and his beautiful, round ass is at his mercy to bite and mark. But he can't see Wei Ying's face from here. He can't kiss him. Can't see how his brows furrow, how his cheeks flush from pleasure.
Still, this is the only position that'll ensure his plan works. Otherwise, he would have to get a blindfold or something similar involved, and that can accidentally slip or come off. He won't risk that. He’s getting his omega pregnant, no matter what.
Lan Zhan’s hands tremble slightly as he grips Wei Ying’s hips, steadying him. The omega whimpers, pushing back desperately, clenching around nothing.
“Lan Zhan, Lan Zhan, please! I’m so empty, I need you inside me right now…” he begs.
Lan Zhan exhales shakily. He reaches for the condom packet on the bed and rips it open as loudly as possible, making sure Wei Ying hears the noise. He puts it on and lines himself up with the boy’s gushing entrance. His heart is hammering so violently he’s sure the omega will feel it through his back, but he’s too deep in pre-heat, too desperate, to notice anything beyond the ache between his legs.
He presses the head of his cock against Wei Ying’s hole and sinks in with one slow, deliberate thrust.
“Ah—!” Wei Ying cries, sounding broken and relieved at the same time. “Yes, yes, finally! You’re so big, Lan Zhan.”
The alpha sets a steady rhythm, fucking into him deep and thoroughly, just the way Wei Ying likes it when he’s like this. Every thrust causes more slick stream down his legs, the wet slap of skin on skin filling the room. Wei Ying fists the sheets, his face buried in the pillow as he moans so loud the entire neighborhood would wake up if it weren’t for the sound isolation every room in their house has. Pros of their entire family being instrumentalists.
Lan Zhan’s mind is elsewhere.
His hand slides down between their bodies. He keeps thrusting but lowers the speed, and after a couple of minutes, he quickly grabs the base of the condom and rolls it off in one smooth motion, throwing it somewhere on the floor. The next penetration comes with a sudden rush of bare heat against bare heat that nearly makes his vision go white.
He keeps fucking him at the same pace, deep, steady, and relentless. It feels different, more intense, with no barrier between them, but the omega is too lost in his pre-heat that it doesn’t register right away. He just moans louder, pushing back against his mate’s body.
“Ah, Lan Zhan, yes, just like that—fuck! You’re so deep…”
Lan Zhan’s breath is ragged against the back of his neck. His hips snap harder now, chasing the swell of his knot as it starts to grow.
“You’re perfect,” he murmurs as he peppers kisses on Wei Ying’s back. “So, so beautiful, always taking me so well.” He nips at his ear. “Are you going to let me knot you, stretch you wide?”
Wei Ying whines. “Yes, yes, alpha, yes! Knot me, make me yours!”
Precum erupts from his cock as the knot forms, but there’s so much slick that it goes unnoticed by the omega, who ruts against him, exciting him more.
“Fuck, Lan Zhan. It’s so much, it’s so much, it’s perfect,” he moans.
Then the first hot pulse of cum floods into his body and paints his insides in heavy spurts.
Wei Ying’s eyes fly wide open, and he turns to look at Lan Zhan, straining his neck.
“Lan Zhan!?” His voice cracks. “Wait—what…? It feels as if…Did the condom break?”
Fuck, those beautiful gray eyes full of worry only make Lan Zhan want to ruin him more. Another thick rope of cum shoots deep inside him, so deep it must reach his womb, and Wei Ying’s body jerks. The knot locks them together, not letting anything escape, and making it so Wei Ying feels every throb, every drop of Lan Zhan’s seed filling him up.
His breath hitches. “Lan Zhan, what happened? Did you—You took it off!?” The words come out half-shocked, half-furious. He tries to twist around, hands scrabbling at the sheets. “What the fuck!? You planned this!? You can’t just—Lan Zhan, why? Just, pull out, stop!” He demands, even when he knows that’s impossible now. Or, well, not impossible, but it would be extremely painful with his knot still swollen.
His body also betrays him. His hole clenches hard around the knot, milking more cum out of Lan Zhan. Fresh slick mixes with his seed inside, a rebellious trickle managing to escape him and dripping down his thighs. A broken, needy moan rips from his throat before he can stop it.
“F-fuck, it’s so hot inside me, I…You came so much, Lan Zhan, you bastard!”
The alpha doesn’t pull out. Instead, he presses his chest fully against Wei Ying’s back, one hand sliding down to wrap around his neglected cock, while the other sneaks around to rest possessively over his lower belly. He keeps grinding slowly, forcing every last drop of cum deeper.
“You’re mine,” he growls against his ear. “Gonna breed you properly tonight, like you always beg for. Fill this fertile womb until it takes.”
“That’s just dirty talk! I was not begging for you to really…” Wei Ying whimpers, torn between anger and desperation. “You’re insane! We didn’t talk about this, Lan Zhan, you—ah!” He screams when the alpha grabs his hips firmly and somehow pulls him closer, forcing him to take his cock and knot deeper.
He can’t fight Lan Zhan. Not when the pleasure, the fullness, feels so good that his mind goes blank. He lies on the bed, unmoving, letting Lan Zhan use him like a sex doll to chase his own pleasure.
The alpha’s fingers spread wide over Wei Ying’s flat stomach, pressing gently as he imagines it round and heavy, full of his pups. The thought makes his cock twitch inside the omega. He feels like such a pervert, fucking into his mate like this, breeding him without permission, but he can’t bring himself to feel guilty. Not when Wei Ying is clenching around him like he was made for it.
His eyes roll back, the anger melting under a fresh wave of heat. “Lan Zhan, it feels so good, fuck,” he moans, feeling his willpower disappear. “Don’t stop.”
“Imagine it,” Lan Zhan murmurs, voice dark and filthy as he rocks them together. “Your belly growing round with my child. So full of me. Everyone will know I bred you. That you’re carrying my pups.”
Wei Ying’s moan is loud and shameless now, the last traces of shock burning away in the fire of his heat. He pushes back against the knot, chasing more of that wet, overflowing fullness. It doesn't help that one of Lan Zhan's hands returns to his cock and teases at the tip, egging him to come.
Wei Ying keens, hips jerking between the tight grip on his cock and the thick knot still locked deep inside him. “Lan Zhan, you sneaky, possessive bastard—mngh! fuck—I’m gonna come I’m gonna—” His words die in his throat, and he cries out as he comes hard, fisting at the sheets for purchase. His hole clenches rhythmically around the knot, milking every last drop for his alpha.
He pants into the sheets, trying to catch his breath. The knot slowly begins to deflate. Lan Zhan brings his cum-slick fingers to Wei Ying’s lips, and the omega moans softly as he licks them clean, tasting himself.
Lan Zhan pulls out carefully. A thick, obscene gush of cum follows, dripping down Wei Ying’s thighs and mixing with his slick. The sudden emptiness pulls a broken whimper from the omega. Lan Zhan kisses the back of his neck and shoulders, gently maneuvering them both down onto the bed so he can hold Wei Ying close against his chest.
But as the haze of orgasm and pre-heat fades, clarity returns.
Wei Ying turns in his arms and glares up at him. “You absolute asshole,” he says, voice hoarse. Real anger burns in his eyes. “We had an agreement, Lan Zhan. You never come inside me without a condom. Never. You had no right to just… take it off like that.”
Lan Zhan’s ears burn red. He drops his gaze, guilt crashing over him. “Wei Ying…”
For a terrible second, he’s sure Wei Ying is going to push him away and walk out. Instead, the omega stays in his arms, breathing hard, clearly warring with himself.
“But fuck,” he mutters, voice cracking. He presses his forehead against Lan Zhan’s collarbone. “It felt so good. Having you come inside me raw like that. It felt so hot, so full…I can’t even pretend I hated it.” He laughs shakily, almost embarrassed. “This is so fucked up. I should be furious with you. I am furious, but all I can think about is how much I want you to do it again.
Lan Zhan’s eyes widen in disbelief. “Wei Ying!?”
Wei Ying shifts them around so he’s sitting on Lan Zhan’s lap. More cum drips out of him, making both of their cocks stir with interest. “You don’t deserve this right now, but you’re going to lie there and let me ride your cock until you come inside me again hard enough to knock me up.” He reaches down to guide Lan Zhan’s half-hard length to his dripping entrance. “I must be pregnant already, anyway, with how hard you just fucked me. That’s what you wanted, right? To knock me up so I won’t ever leave you?” He chuckles and shakes his head at whatever he sees in Lan Zhan’s expression. “You possessive, jealous alpha.” He sinks a bit, taking the head inside with a moan, and leans over to kiss the other man. “I would never leave you, Lan Zhan, no matter what, you big idiot. I love you.”
Wei Ying takes more of the alpha in, and Lan Zhan groans, his hands flying to the other’s waist. The omega starts riding him with lazy, deep rolls of his hips.
“I love you too,” Lan Zhan says.
Wei Ying sighs, still moving. “I wanted to wait a few more years to have kids, you know? At least until we were independent enough that your Uncle wouldn’t kick us out… That’s why I never let you come inside me. I knew the second it happened I’d get addicted, that I’d never let your cum go to waste again.” He smiles, fond and wicked at the same time. “So congratulations, Lan Zhan. You’ll have to take responsibility for your actions.”
Holy shit. If Lan Zhan hadn’t already come so much, he would’ve spilled just from those words. Instead, he tightens his grip on Wei Ying’s hips and lets out a low, possessive growl as he thrusts up to meet every roll. He pulls the omega down into a deep, desperate kiss, pouring every bit of relief and hunger into it.
Wei Ying moans into his mouth and rides him faster, lost in the filthy, overwhelming rush of loving something he knows he probably shouldn’t.
A few months later, when the pregnancy test result comes back positive, neither of them is surprised.
Neither of them regrets it, either.