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He's trapped, ass up, hands held fast by deep purple rope, twisted into intricate knots by Chuuya's expert fingers. He feels so terribly exposed, legs trembling, thighs tensing uselessly. Between his legs, his cock bobs, hard and leaking, the beginning of a knot forming at the base. Dazai whines again, eyes squeezing shut as a shudder works through him, stomach clenching in a mixture of shame and arousal.
It's deeply embarrassing, but Chuuya had asked , stuttering and hesitant, hands wringing as he asked Dazai if he could fuck him . If he, Chuuya, tiny little fireball of an omega, could fuck Dazai, over half a foot taller amd twice as broad, blood pounding with volatile alpha hormones.
Of course, Dazai had agreed, because Chuuya hardly ever asked for anything, instead taking, or else enduring. Even the twist of embarrassment couldn’t tamper the flutter of pride as Chuuya fucked into him.
For an omega, Chuuya's cock is big, even if it's nothing compared to Dazai's own. Still, it's enough to have Dazai writhing, gasping, chewing on his own lips to hold in pitiful, squeaking sounds. Humiliation burns hot in Dazai's stomach, in his red face, twisted into the pillows. Chuuya's hands dig into his ass, prying him apart to look at where they’re connected, grip bruising, hips unrelenting.
“Some alpha you are,” Chuuya grunts meanly. “What kind of big, bad alpha takes it up the ass, huh? It’s pathetic. Truly.” He pulls Dazai back into each thrust, breathing heavily through his nose. Dazai can smell Chuuya's slick in the air, the scent sleeping into his pores, mixed with the smell of Chuuya and Dazai's own shameful, heady arousal.
“What would all your subordinates think? What would those other alphas think, seeing you fucked like a needy bitch? Like an omega, ” This he spits like he's disgusted, “In heat. I'm surprised you're not drooling slick all over my cock.”
Dazai only whines, hands curling into fists in the ropes. The words ring true in his head, something inside him roaring angrily, insisting wrong , urging him to press free, to pin Chuuya to the bed and spear him on Dazai's knot. Another part of him is pleased, happy to be able to carry this fantasy out for his omega.
Beneath that, though, is a part of him that preens, that finds truth in Chuuya's words and indulges in it. This could be him, he thinks carefully, he could be an omega. He can imagine it, giving in to that needy, desperate side of himself, being soft and gentle and helpless. Chuuya would be his alpha, taking care of him, fucking him, breeding him. It sends a shiver down his spine, and coupled with another thrust of Chuuya's hips, the head of his cock glancing off Dazai's over-sensitive, tender prostate, it makes him keen.
Prep had been a little brutal, since he'd never even thought of putting anything up his ass, and he'd been especially tender after a very thorough and deeply debasing shower directed by Chuuya's stern gaze. It had all left him feeling vulnerable, shaking like a deer, and the first brush of Chuuya's finger against his prostate had made him yelp, tensing and jerking off the bed, stars bursting behind his eyelids. Obnoxiously, Chuuya had laughed and ground his finger into the nerve, delighted in this newfound power over his alpha. The feeling was indescribable, not akin to anything he’d felt before, opening some kind of chasm in him. He’s rocked into it with abandon, chasing the feeling of Chuuya’s finger circling the nerve teasingly, trying to wring as much pleasure as he could from the little motion. It was like something inside of him was clawing for it, a great big hole in the pit of his stomach, opening wider, taking as much of everything as it could.
And when it felt like it was almost too much, like he’d implode, the warm fingers of Chuuya’s other hand had wrapped around the base of his cock, the feeling coming to a halt, returning forcibly to a low simmer. Chuuya had laughed, leaning over his back, that one finger still making cloying little circles around his prostate. “I like this,” He’d said into Dazai’s ear, the brunette’s spine bowed back enough that he could reach.
Dazai had only whimpered in response, a high, reedy sound that only ever came out in the throes of his rut. His blood rushed in his ears, his legs barely holding his hips up, his hands twitching in their bounds. It was like he was seeing himself from outside, this strange, needy version of himself, so absolutely abandoned of the usual alpha poise he maintained. Dazai was secretly enamoured with the feeling.
It had only taken two fingers to prep Dazai, in the end-- small omega cock-- and Dazai had keened so loud his ears rang with the first press of Chuuya’s dick against his hole. Chuuya had kept a hand around his cock the whole time, hips finally sinking home. An explosion of Chuuya’s scent, pleased and aroused, almost curious. And Dazai’s own, so far gone with pleasure it was almost sweet, sweet like an omega’s.
Slowly but without restraint, Chuuya had built a pace, until they were here, with Dazai’s back arched and his face buried in the pillow. Chuuya growls behind him, a sound that makes Dazai keen, something inside him folding.
“You’re so docile…” Chuuya groans, “So pathetic and cute. It’s so fucking-” Chuuya nips at his ear, chest pressed along the line of his shoulder. Tilting his head a little, he runs his tongue along the swollen bump of Dazai’s mating mark. “So hot .”
The sound Dazai lets out is half moan, half gasp. The wet, hot feeling of Chuuya’s tongue on the sensitive mark makes him shake-- it’s not usually so sensitive, but everything feels heightened right now, all too much. Another glob of precome bubbles at the head of his dick. He still hasn’t come, barely coming back from the edge before Chuuya was fucking him, the senstations tumbling into one another and overwhelming him. The hard lump of a knot beginning to form makes him cringe with embarrassment again; for him to bust a knot when he’s not buried inside his omega is supremely shameful, almost desperate.
Chuuya seems to enjoy it, though, moving one hand around his hip to pet at the knot, still licking fat stripes over Dazai’s mark. “Going to pop a knot? Without even getting your dick near me? That’s pathetic, Osamu.”
Dazai whines, panting, “Please- I want to fuck you.”
“No, you don’t. You want me to keep fucking you . You’re clearly enjoying it.”
There’s no plausible deniability here, not when Dazai is whimpering and growing his hips back into Chuuya’s every thrust. He tugs his wrists apart uselessly, prying at the ropes. He can’t break them; Chuuya’s far too skilled with rope for that. Instead, it just makes his wrists burn, but it’s a good enough distraction that he can hold back the agreement on his tongue.
Chuuya squeezes his knot meanly, laughing when he sucks in a pained gasp. “Useless.”
Dazai whines again, clenching around Chuuya’s dick. He must be getting close, because his pace begins to devolve into desperation, his fingers twitching where he’s still holding Dazai’s knot, palming his ass. Dazai feels his own dick pulse and dribble, gasping when Chuuya moves his hand to wrap his thumb and middle finger around the base, right over the knot. He squeezes meanly.
“There’s no need for this, is there?”
Dazai shakes his head mindlessly, unsure what Chuuya is asking. He’s panting hard against Dazai’s ear, breath washing over the mark, over his hair. His scent spikes in the air, pleased with the alpha’s agreeance. “That’s right. Just stay there and let me fill you up.”
Again, Dazai moves mindlessly, nodding his head. He’s on fire, shaking and sweating, legs threatening to give out. Chuuya digs his nails into the flesh of his ass, groaning under his breath. Where they’re plastered together, chest to back with Dazai’s arms pinned uncomfortably between, is slick with sweat, sticky and damp, and his ass stings where Chuuya’s hips slap into his skin. He arches as best as he can against the omega, keening loud in the back of his throat when the head of Chuuya’s dick glances off his prostate.
“Fuck,” Chuuya groans into his ear, “You feel so fucking good, Osamu. Perfect around me.”
“More,” Dazai whines needily.
Again, Chuuya laughs, breathless. His hips move ever faster, sloppier, messier. “Stupid omega slut,” He bites out, and Dazai all but screams, some confusing, convoluted emotion making him shudder.
“You like that?” Chuuya asks, sounding distinctly pleased. “Like me calling you my little omega slut? Hm? Is that what you are, baby?”
A gargle of bewilderment works out of Dazai. He shakes his head.
“Oh, poor thing,” Chuuya coos. “Confused?” He makes a show of inhaling Dazai’s scent against his neck. “You almost smell like an omega to me…”
Dazai inhales instinctively, trembling at their combined scents. If he strains his imagination, he can almost smell it too. It makes him whine, the sound startled and unbidden. He can imagine, too, being Chuuya’s omega, Chuuya being his alpha. He’s already strong and takes more care of Dazai than Dazai does him. It seems almost natural that their roles reverse.
“Yeah,” Dazai gasps, nodding again, head bobbing into the pillows. He’s crying a little, he realizes belatedly.
“Fuck, baby.”
Dazai can pinpoint the moment Chuuya tips over the edge, his hips stilling, fingers clenching tight around the base of Dazai’s cock. He sinks his teeth into Dazai’s neck, right beside the mating mark, groaning against the skin. The feeling of hot cum inside of him is new, foreign but not unwelcome, and Dazai keens. It makes him feel warm, something deep inside him feeling satiated.
It seems to last forever, but eventually Chuuya’s teeth pull out of his neck, and he stops coming, panting into Dazai’s skin.
“Fuck, Dazai,” He grunts, laughing a little.
Dazai whines, wiggling his hips in Chuuya’s hand. He’s so hard it hurts, knot pulsing with the need to release. Chuuya obliges easily, working his hand up over Dazai’s cock in quick strokes, thumb pressing under the head in the way he knows Dazai likes. The feeling builds, aided by Chuuya’s low coos in his ear, spurring him on, and he tips towards the edge, almost falling--
Chuuya’s other hand leaves his hip, moving fast to reach around him and clamp around the base of his cock, above his knot. Panic wells in Dazai briefly, and he can only whine, the words stuck in his throat. Orgasm comes far too quickly, before he can stop it, and he nearly screams, the strange, overwhelming feeling of coming with his knot stuck making him shake. It almost hurts, it feels unfulfilled , and even after he’s shot ropes onto the sheets, he’s heaving, the feeling of dissatisfaction lingering like an itch.
He whines in a manner that makes him feel supremely pathetic, gasping and shaking and being pitiful.
“Omegas don’t need to knot,” Chuuya reminds him smugly in his ear, squeezing his knot painfully. It’s still there, just only almost , and already starting to go down. Even as it recedes, far quicker than usual, there’s the feeling of not enough. Dazai bucks his hips and shakes Chuuya off.
The redhead goes easily, rolling onto his side and pulling Dazai by the bound wrists until he rolls onto his side. “Pathetic,” He says, kissing Dazai’s shoulder.
“I hate you,” Dazai sniffles, tears coming fast. “It hurts.”
“Poor thing.”
“You’re awful. I-” He can't think of anything to say, so he only sobs again, “Chuuya, it hurts .”
Hands dropping down to start on untying the rope, Chuuya purrs quietly, trying to soothe his alpha. He kisses Dazai’s shoulder again, not apologizing. Tremors of overstimulation and some kind of drop that Dazai really doesn't even want to understand making him feel small. The sheets stick to him, and as soon as Chuuya gets his hands free, he rolls onto his stomach and flings his arms out to either side, crying into the pillow.
“You big baby,” Chuuya says, running his hand up and down his back. The brunet continues to cry, heaving and sobbing, hands curling into fists in the pillow. The dissatisfaction continues to burrow into him, but the longer it lingers the more Dazai starts to almost like it. It leaves him hungry to try again, to feel that submission again. Under Chuuya’s hands, one on his back and the other now carding through his hair, Dazai feels cared for, even if Chuuya’s the one who did this to him. In their air, he can smell them-- his own scent dissatisfied and sleepy; Chuuya’s proud and almost excited.
The tears and tremors subside as Dazai relaxes. His nose feels stuffy, his legs ache, and the feeling of come cooling inside of him is so strange he feels like he needs to take ten baths just to get it out.
“Are you done with your tantrum?” Chuuya asks. He sweeps Dazai’s hair away from his neck to inspect the mark his teeth have left, just next to the permanent one. It’s not so bad, from what Dazai feels, barely anything really. He’s a little disappointed.
Sniffling dramatically, Dazai shakes his head no .
“It kind of seemed like you liked it,” Chuuya says, not unkindly, and not without a hint of smugness. “What’s that about?”
“Mind your own business, slug,” Dazai grumbles, pressing his face further into the pillow.
“Your business is my business.” Chuuya pokes him in the side. “It was hot, wasn’t it? I mean it was for me.”
Opening one eye, Dazai survey’s Chuuya’s expression. Open and a little hopeful. “...It was.”
“Right. So we should do it again some time.”
Dazai concedes a nod, pursing his lips. It felt good , to not be the one in control for once, to be under Chuuya’s control. He really doesn’t want to think about what that feeling really means. “Chuuya wore me out. I need to sleep. Aren’t you supposed to pamper me now? Usually when I fuck you , I-”
“Yeah, yeah.” Chuuya pinches him again for good measure before getting out of bed to find a washcloth, already turning over ideas for next time in his head. “How do you feel about me putting a fake knot in you next time?” He calls over his shoulder, holding back a laugh when Dazai groans.