Work Text:
It's the scent that hits him first.
The instant Katsuki steps through the door, the potent scent of omegan arousal hits him face first like a physical blow. It's strong enough that his sensitive nose twitches and he almost stumbles back a step.
He sighs. He can't say he wasn't expecting this.
When Katsuki had gotten a bunny hybrid, he'd been made well aware of the work he'd have to put in but this–
This is fucking ridiculous.
He'd went out grocery shopping. Two hours tops. He'd fucked and plugged Deku before he went and now he comes back to this? His bunny acting like he wasn't dicked down just a few hours ago? Like Katsuki's been depriving him of cock? Fucking slutty baby.
He shucks off his boots and shuffles into the apartment, dropping the grocery bags in the kitchen and breathing through his mouth as he goes. The scent only gets stronger the closer he gets to his bedroom. It's intense now. Smelling like slick and sex, and pure, unadulterated need. It sticks to the back of Katsuki's throat, all sweet and cloying, and his mouth waters instinctively at the phantom taste with every swallow. Fuck, even his dick starts to stir in interest in his pants.
It feels way too strong to be natural though. A little too sweet, a little too heavy. Deku's doing this on purpose then, the fucking brat.
Thoughts whirl in his head as Katsuki braces himself and pushes his bedroom door fully open.
This close up, Deku's omega pheromones almost bring him to his knees. Almost. He steps inside and quickly closes the door behind him lest the entire apartment stink of horny omega.
"K‐Kacchan!"
Just as he had expected, Deku's sprawled out on his bed. He's completely naked save for his collar, nubile body open and spread across Katsuki's, now ruined, sheets.
Fuck.
"Bunny, what the fuck do you think you're doing?" he growls.
schlick, schlick, schlick
Deku bites his lip, watery verdant eyes never leaving Katsuki's own, even as he moves his favourite dildo in and out of his clenching pussy. Heat grows in Katsuki's belly at both the sordid sight before him and the outward display of defiance.
"I was horny Kacchan! And, ahh, you were– you were taking too long. I couldn't wait..."
He moves closer to Deku, grabbing both of the hybrid's hands and pinning them to the bed above his head. Katsuki can't deny he looks pretty like this. All flushed and vulnerable, pouting adorably with those pillowy lips. Any other time and Katsuki would give in. Would give his precious baby whatever he wants. But not right now. Deku's gotta learn sometime.
"I was barely gone for two hours, baby. You can't go for two hours without something in your slutty holes? Is that it, hah?"
Deku whimpers.
Without warning, Katsuki takes hold of the black dildo that's slipped halfway out of Deku's pussy and slams it back in.
Deku screams, his back arching of the bed, his core tightening.
"You're such a slut. But I guess I can't blame you," Katsuki says conversationally as he continues to piston the dildo in and out; filling Deku to the brim then wrenching it out and shoving it back in again. It's brutal but Deku can take it. "That's all you bunnies are good for, I guess. Can't fucking function without a cock in your little pussy, right?"
Deku squeals after one particularly harsh thrust, eyes rolling back and body tensing like a live wire. His cunt quivers and slick pours out like honey, dripping down the dildo, wetting his thighs, his ass, Katsuki's hands.
"You always make such a mess, bunny," Katsuki leers, bending closer and eyeing Deku's glistening red pussy. He slows down the tempo and pulls out the dildo completely, rumbling with satisfaction when he sees the state the bunny is in. Deku whines, a sound so high and needy it goes straight to his cock.
"Look at yourself, sweetheart," he says. "Fuck, your pussy is leaking like a faucet. Look."
Deku, still catching his breath, struggles to open his eyes. He swallows hard then glimpses down at himself, shameless and breathtaking, moaning lewdly at the sight of himself. Without the dildo, it's clear just how swollen and wet Deku's pussy is. He must have been rawing himself for a while then. Maybe even the second Katsuki stepped out of that door.
Unable to resist, Katsuki traces a finger through the puffy, wet mess.
"Kacchan, please. Need you. I need– hnnng..."
A curious press of his thumb onto Deku's engorged clit and the bunny melts into the sheets, moaning and trembling all over again. He's close, Katsuki knows it.
Katsuki inspects further. He releases Deku's hands and takes both ankles instead, pushing them high up to leave Deku beautifully on display for his eyes.
A swell of pride rises in him at the sight of plush thighs and a fat cunt. Such a beautiful specimen, his Deku. Only the best for Katsuki, of course. Now if only his bunny fucking behaved.
On display like this, Deku's sex looks even more debauched. Chubby pussy lips squished together like lips, slick dripping between them like drool. Katsuki desperately wants a taste but he controls himself. This isn't about him. It's about teaching Deku a lesson. It's punishment, not reward.
Still, he takes a moment to watch as copious amounts of omega slick thickly flows out of Deku's pussy. He still has the anal plug Katsuki had plugged him with this morning. He'd fucked Deku's ass, filled him up and plugged him full, thinking his bunny would be satisfied.
"Did you play with yourself here, bunny?" He gently presses down on the base of the plug. "Did you take your princess plug out?"
"No," Deku answers. "Didn't want to lose Kacchan's cum."
Katsuki's almost coos. Cute fucking brat.
Without warning, he grasps the flared base of the plug and tugs at it.
Deku jolts.
"N-No! Wait–"
"Bunny." Katsuki reprimands sternly, shallowly fucking Deku's ass with the plug before starting to pull it out altogether.
It comes out slowly, revealing inches of smooth, curved steel and leaving Deku's ass stretched wide in it's wake. It's deceptively large and once fully out, it leaves a delicious little gape and Katsuki's mouth waters to stick him tongue in it.
Almost immediately, viscous white cum gushes out, mixing with the free-flowing rivulets of Deku's slick.
Deku moans, feeling the cool air and fluids mix. His hole twitches and more of Katsuki's seed drips out.
"I filled you so fucking much, Deku. And you still went and fucked yourself? Cock slut."
He drops Deku's legs and undresses himself.
Deku sniffles, running a hand through the mess of his pussy and ass, desperately trying to finger the cum and slick back into him.
"You've been naughty today, baby," Katsuki says, freeing himself of his trousers and breathing in relief when his cock springs up to full mast instantly. "Here's what's going to fucking happen. I'm going to have to punish you, Deku. I asked you to be good and you went and made a mess of yourself. And my sheets. And my room."
Katsuki takes a seat on the edge of the bed. Deku sidles upto him and Katsuki allows himself a moment to gather Deku in his arms and pull him to his chest. He's a tiny thing and he fits against Katsuki like he was made for him. Velvety bunny ears flop over his eyes and Katsuki brushes them away, cupping his face and directing him to look up at Katsuki.
"I'm going to spank you, sweetheart. You gotta learn to listen to me. It's for your own good, okay?"
Deku nods, hesitantly.
"If you take your punishment like a good boy, I'll fuck you real nice, okay? But you gotta be good for me."
Deku nods again, surer this time.
He's squirming against Katsuki, rubbing his legs together for whatever friction he can find. Restless and antsy.
Katsuki pats his lap. "Ass up, head down," he says.
Deku looks hesitant for a moment more but complies nonetheless. He clambers over him then shimmies down until his pert, bubble butt is propped up on Katsuki lap.
Katsuki runs an appreciative hand over the thick meat of it, generously groping at the plump cheeks and watching them jiggle. Fuck, he loves this ass.
"Count," he says.
"K-Kacchan–"
Smack!
Deku jerks in his lap. Whatever he was saying gets lost in the breathy little gasp that gets punched out of his lungs.
"Count, baby." Katsuki reminds him. He rubs the smarting ass cheek he just spanked, eyeing with satisfaction the lovely shade of pink it's blushing.
"One," Deku says, already close to panting.
Smack! Smack!
Two consecutive spanks and Deku arches off his lap, a sweet moan spilling over his lips even as his face scrunches in pain.
"Two. T‐Three."
Katsuki spanks him again. And then again. Harder this time. He watches carefully, rubbing a soothing hand over Deku's ass. He can physically feel heat starting to emanate from the skin, both ass cheeks quickly deepening into a beautiful shade of red.
"Four! Five!" Deku hiccups.
His green eyes are glassy now, swelling with tears that roll down his face in fat, salty droplets.
"You're doing so good, baby," he tells him. "Just five more."
Katsuki runs an idle finger from Deku's ass crack, over his hole and down to his pussy. It's a light enough touch to provide Deku's the barest hint of stimulation. More frustrating than pleasurable.
"Maybe I should spank you here," he says contemplatively, petting Deku's weeping pussy and hole again. "Should teach your slutty little holes not to be so naughty."
"Please. I need– Kacchan!" His bunny keens at the touch, trying in futile to hump Katsuki's hand.
Katsuki huffs at the cheekiness. He parts Deku's ass cheeks, looking at the twitching mess of a hole hidden between. He licks his lips. So very tempting. He raises a hand. And then brings it down on Deku's hairless, pliant hole. Hard and sharp.
Deku's outright sobbing now. His face is ruddy and blotchy, and his fingers claw at Katsuki's sheets.
"Six! Six!"
Katsuki does the same to his bunny's chubby pussy. It's far too messy with how wet it is, but also a lot more sensitive, and Katsuki delights in the way Deku's scream is just the bit higher when the resounding slap to his used pussy rings out.
He alternates between pussy and hole. The last smack is angled so it hits both at the same time. Katsuki uses extra force and makes sure Deku feels every bump and callous of his hand and fingers as he spanks against it. It leaves both holes an angry red, burning in sensitivity and swollen shut; the previous little anal and pussy gape closed shut and nowhere to be seen.
"Ten! Ten, Sir!"
Deku's a loud, moaning mess, finally giving in now that his punishment is over. Sprawled over Katsuki's lap, he's babbling mindlessly, eyes fuzzy and expression pulled into that floaty, far away look that tells Katsuki his baby is teetering on the edge of subspace.
So quick to fall.
Katsuki gathers him in his arms, grabs hold of his own woefully neglected cock. Without any more ceremony, he spears into Deku's gushing pussy in one smooth thrust, head thrown back and groaning at the way Deku's well trained cunt accepts all of him. Tight as a vice and milking his cock like there's no tomorrow– a perfect cocksleeve.
"Shh, it's okay. I gotchu, baby," he rumbles in Deku's ear. He clutches Deku to his chest and rolls his hips, luxuriating in the warm, wet tightness. He loves Deku's cunt, he thinks half-dilerious; taking Katsuki's considerable size with barely any effort. Deku chokes down a sob of relief at the feeling of fullness, of a warm, throbbing cock chasing away the emptiness.
Finally.
Deku is fully gone in a matter of minutes and Katsuki fucks him through it. He bucks into Deku's cunt with vigour, slipping out a few times from just how fucking wet it is and how much more slick Deku's producing now that he has a cock stuffed in him.
Katsuki doesn't last long with how pent up he is. Just as he feels like he's about to nut, he fingers Deku's clit, pressing down and pinching the rounded nub with fervour. He wants to feel his little bunny come as Katsuki fills him up again.
They come together.
Deku fucking squirtss and they're even more drenched now, but Katsuki can't be bothered to mind it. His balls twitch and jump, pumping cum deep into Deku's womb and painting his walls white.
The rush in his ears calm as the tide of pleasure resides and Katsuki slowly comes back to the land of the living.
Brain gooey from the orgasm, he shifts so as not to crush Deku under him, careful to not pull out yet. Not now anyway.
Deku's out like a light, a surprisingly serene expression on his face and a mix of happy pheromones filling the air. Katsuki cock pulses and gives a final spurt of cum before going flaccid.
"Tch, fucking brat got what he wanted after all."
Cockwarming it is then, Katsuki thinks as he, too settles in for a nap.