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"K-Kacchan… it feels funny. I d-don't know if we should…"
"Hush, baby boy. Do a twirl for me."
Katsuki lounges back against the couch, taking a sip from his glass as Izuku nervously shifts his thighs together, rubbing the tips of his fingers against the edge of the lacy thing he had underneath his new outfit.
He looked precious, his chubby thighs and skinny hips outlined in a loose, flowing skirt that barely hid his little cock. Katsuki can see the hint of his thong without Izuku having to move a muscle.
Oh, but he's so pretty when he does move. He shuffles awkwardly, spinning in a slow circle so that Katsuki can drink in every inch of him, front and back. His shoes, babydoll and leather with a modest heel of only an inch and a half, clack against the hardwood as he goes.
The best part is the little bralette peeking through his sheer croptop. The straps wrap around his neck, tied like a halter top, and the half shirt does little to hide the little cut-outs over his nipples. Katsuki can see how they're already hardened, just from Izuku having Katsuki's eyes on him. He's so well trained.
Katsuki takes another sip as Izuku finishes his twirl.
"What feels funny, baby? Don't like your new panties?"
Izuku yelps, almost. It's a startled noise, like a deer getting spooked in the woods even though Katsuki didn't speak any higher than he usually did. No, his voice is rather deep tonight, smooth like brown bourbon and just as sensual.
Izuku squeezes his legs together again, as if to hide what Katsuki can barely see. That must make the thong dig into him harder, because he keels over a bit and his face goes red. His pretty freckles get overshadowed by his blush, and Izuku blinks tearfully at him past his bangs.
"T-they… dig in," Izuku whispers. "M-my… They don't hide my—"
"Your little clit is hanging out, baby?" Katsuki grins. "That's no good. C'mere, princess."
Izuku trembles at the pet name, but Katsuki can't really tell if it's from humiliation, or if it's because he's aroused and doesn't know how to handle it. The poor little tween always trembles like that whenever Katsuki gets his hands on him.
Obediently, Izuku stumbles forward. He isn't used to the heel, nor the stockings that nearly get caught on his nervous fingernails when he tries to clench them into fists.
When he gets close enough, Katsuki lays his hand across the full of Izuku's back. He's so tiny that Katsuki practically dwarfs him with just that.
He urges him even closer, until he's gathered Izuku in his lap. Izuku is short enough to tuck his head beneath Katsuki's chin, small enough that his legs hardly reach past the cushion of the couch once he's cuddled up close to Katsuki's middle.
From this angle, his ass juts out. His skirt rides up as he straddles one of Katsuki's thighs (straddling both make his legs strain too wide), and his pretty pink thong peeks out from between the cheeks.
If Katsuki sits up a bit straighter, he's sure he could see the plug sitting pretty inside of him, too, past the thin string.
Katsuki lays his palms flat against Izuku's hips, squeezing a bit just to get him to stop squirming.
"Why so nervous? Your Kacchan's got you, baby boy."
In the lowlight, Izuku's blush still shines scarlet. He nuzzles his face against the curve of Katsuki's neck, but that's alright. Katsuki can touch him all over even if Izuku tries to hide from it.
He dips his fingers between them, palm outward so that he can feel along the soft planes of Izuku's belly as he inches lower and lower.
Izuku tenses as he goes, ticklish, and actually tries to arch away when Katsuki hovers his fingers over Izuku's clothed groin.
Katsuki punishes the movement, biting down on the exposed part of Izuku's shoulder.
"Ah!" Izuku hisses, flinching when Katsuki's teeth dig in. "Ow… That h-hurts, Kacchan…"
Izuku's lips tremble as he tries to hold in his sobbing, the crybaby. As if Katsuki hasn't already done far worse to him. The bite will leave a nice mark on him, though, already purpling before his eyes. That'll be a bit hard to hide, but Katsuki's arousal heightens to dangerous levels seeing his marks on Deku's tiny body.
Katsuki drags his tongue across the untouched column of Izuku's neck, simultaneously cupping his palm against Izuku's cock. His other hand, he slips between Izuku's ass cheeks to tap against the plug.
Izuku helplessly bucks into both stimulations, his voice catching somewhere between a moan and a cry.
"I love how sensitive you are, princess. All I gotta do is look at you to get you all hot and bothered, hm?"
Izuku whimpers. His little noises are so precious when he gets overwhelmed like this, but Katsuki did promise he'd help out his little… problem.
Katsuki flips Izuku's skirt up, baring his ass to the open air. Izuku buries his face against Katsuki's chest this time, almost curling in on himself. Katsuki doesn't let him go far, nudging against his pretty toy again until he's trembling in his hold.
"Thought you wanted me to fix your panties? Can't do that if you keep trying to slip away," Katsuki teases. He thumbs across Izuku's small cock, which is just barely held in place by the thin straps of the thong Katsuki had gifted him. Really, even with how tiny it was, it's a surprise Izuku's cocklet fit at all.
"We don't want you being indecent do we? With your clit and your pussy hanging out like this, who knows what someone would do to you."
As if anyone would survive touching his favorite little plaything. Katsuki wasn't exactly the sharing type.
No, Deku was for him and him alone.
Still, the implications make Izuku frightened. He's like a little rabbit caught in a trap, nowhere to go and nothing to do except shiver for mercy.
"Let Kacchan help you, then. Say please."
Izuku hiccups. His entire body jumps with the motion, and his cheeks are so shiny with his humiliated tears. And when they spill over, they're like diamonds dripping into existence. Katsuki wants to taste the salt of them, see how much better they taste when he corrupts Izuku even more.
"P-Please help me, Kacchan."
"How do you want me to help you, baby? Gotta be specific. Or else I'll do something like… this."
Katsuki spanks his hand down on Izuku's ass, the sting of it sharp to his own palm. Izuku's head tosses back, shock splitting through his embarrassment.
Katsuki does it again to the other side, before he slowly twists Izuku's plug as if he's about to yank it out.
"N-No!" Izuku cries. "N-Not— not there, Kacchan! Please fix my… my panties, pleasefixmypanties— ah!"
Izuku's plug slips out. It's a thick steel bulb, something that Izuku can't help but focus on when it's inside of him. And with it comes a flood of Katsuki's seed from this morning, spilling messily down the leather couch cushion and probably soaking into the grooves of the hardwood floor.
Izuku keens, high-pitched and ashamed. His hole clenches down on nothing, but when it relaxes it gapes back open again.
"Aw… princess had a little accident, hm? That's no good."
Katsuki tosses the plug to the side. The gemstone sparkles even in the lowlight, and Izuku's eyes catch on it for a moment before Katsuki is calling his attention back.
"Now, what do you say when you've been bad?"
Izuku looks near hysterical at the words. As if Katsuki doesn't make him recite the same thing every day.
Or, perhaps, that's exactly why he's turned into a whimpering mess. But Katsuki won't be pulling out the belt or the cock rings and maddeningly rumbly toys just yet.
He wanted to hold onto his baby for a minute. Just had to make sure he remembered his place.
"What do you say ?" Katsuki asks again, harsher, as Izuku gasps and stutters while he tries to fill his lungs.
"I- um… I-I…" Izuku flounders, eyes squeezing shut so tight that more tears leak out. They blink right back open again when Katsuki shifts, leaning down until they're nose-to-nose.
Izuku's eyes go half-lidded as he drowns in the heat of Katsuki's body, as he probably chokes on the aroma of his cologne. Izuku was like a little puppy like that, happy just to be surrounded by his master's scent.
Katsuki tuts at him when Izuku takes too long again.
"You should be apologizing, baby. Something cute like… 'I'm sorry for wasting your time, Kacchan. I know I'm a useless fuckhole, but you still take time out of your day for me. Thank you for giving me purpose', hm?"
Katsuki lifts his fingers and tucks a lock of wavy hair behind Izuku's ear.
"But that's alright, baby. I'm not into you for your brain."
He hooks his arm tighter around Izuku's waist, pinning him firmly to Katsuki's body.
Then, he punishes him.
Katsuki's fingers come down with a sharp sting against Izuku's unexpecting hole. He leaves three fingers against it as it spasms from the pain, ignoring the shocked gasp Izuku breathes out.
"Don't flinch away," he says, voice almost sweet the same way alcohol is before it sharpens on the tongue. "And hold your panties out of the way so I can see all of your cunt."
Izuku's voice trembles out of him as Katsuki slaps his hole again. A warbling, nonsensical cry that is probably a plea for him to not hit so hard, but Izuku makes sure to keep the words garbled this time. Katsuki had taught him long ago to always be grateful for the attention Katsuki gives, painful or not.
His tiny fingers reach back and pull at his thong, stretching the fabric even thinner. Which also makes it dig deeper against his sensitive little sac, the balls separating further as the fabric bunches between them. Izuku's small cock has also fallen out the front again, rutting forward against the fabric of Katsuki's shirt when he's casually spanked again.
It's not a flinch, though, so Katsuki doesn't increase the pace. Just pats at Izuku's hole, feels how it twitches and relaxes as if the punishment is done, and then spanks it again to remind Izuku of his place.
Each time, Izuku lets out the cutest little sob. His voice is thick with tears and spit, kind of like how he sounds when he's being ruined by Katsuki's dick spearing him open too many times in a row. He's probably slobbering all over Katsuki's shoulder, where he's hiding himself.
But he keeps his hands where Katsuki can see them, one showing off his sloppy ass, and the other bunched up in his skirt near his hip, to also keep it out of the way. What a good doll, not even having to be told.
So, Katsuki will give him one more reprieve.
Katsuki lays a gentle kiss against Izuku's temple. He can feel how hard Izuku's heart beats through the thin skin.
Then he curves over, angling Izuku's behind up with his undirtied hand. He keeps squeezing his supple ass cheek, watching how his hole winks back at him.
Katsuki spits on it.
The drool lands with a wet sound against Izuku's skin, just barely missing. It has to roll down Izuku's skin, curving across his crack until it slowly slides in and leaves Izuku even wetter.
Izuku whines as Katsuki spreads the slick of it, until his hole is trying to open up further to let the tips of his fingers in.
"Greedy whore."
Katsuki shoves three fingers in at once, wriggling them in as deep as he can get to spread his spit along Izuku's already soaked inner walls.
And Izuku squeals at the stretch, going tense all over. His fingers recoil, accidentally whipping himself with the tight thong again, and Katsuki slaps his other hand against where it lands, to make the pain swim across the rest of his nerve-endings.
He allows Izuku to cling to him desperately, though, his fingers fisting against the soft fabric of Katsuki's shirt.
Katsuki only fingers him for a few moments, until there's a noticeable squelch every time he shifts his knuckles.
Then he pulls out again, letting go completely. He plants his palms against the gentle curve of Izuku's hips, squeezing.
And his poor baby doesn't know what to do with himself in the aftermath. His poor little ass left empty just after being filled the way it was meant to, with only a dribble of saliva and a fading pain to keep it company.
And just when Izuku's shaking legs tighten, clamping down on the thigh he straddles— just when the little toy in his arms starts to relax again, thinking his sudden punishment is over—
Katsuki smacks it again; lets his hand fall from a higher drop than before, wrist tensed so that the full force of it slams into Izuku's rosebud.
Then again, just because Izuku is so fun to torture.
The amazing thing about it is that even though his hole tightens, clamps down from anticipation for the next spank only to get impossible tighter when the pain blooms across it, Izuku's cute little ass opens right back up and shows off how deliciously pink it is deeper inside. Still gaping after being held open with a toy and cum for a few hours.
Katsuki palms one of Izuku's cheeks, spreading it all over again. And his hand is so large in comparison that he can still thumb over the rim of it and spread some of that leftover cum-spit mix, until it dries into his sensitive skin.
"Oh, look at that… what a pretty color."
Red in the middle, pink nearer to the rest of his ass. It looks as burning hot as it feels, Katsuki can feel the pain radiating from it when he hovers his fingers just outside of it.
"Maybe I'll fuck you in a bit," Katsuki teases. "See how sensitive I've got you. Maybe it'll hurt when my cock shoves in past this swollen mess. Bet you'll still cum when I fill you back up again."
Katsuki hooks his thumb past the fluttering muscle and pulls on it, holding it open. If his cock was out, it'd be easy to squeeze the tip inside and just hold it there. Make Izuku use his ass to clamp on it, suckle it like his cute little mouth does.
Izuku lets out an aborted sound, as if he's going to complain. A big no-no. In warning, Katsuki spanks his ass three times in a row, quick ones meant to shock more than to ache. Izuku's back arches, but his ass stays exactly where it is in case Katsuki wants to keep spanking even when Izuku trembles from it all.
"What, don't want my cum anymore? Too good to be my cocksleeve?"
"N-No!" Izuku cries. "Please, Kacchan- I want your cum! Want you t-to fill me up again, please."
"Oh, hush." Katsuki rolls his eyes, but his grin stays cruel as he relaxes back against the couch cushions. "I know you're addicted to it, baby. I'm just playing with you."
Katsuki reaches over for the forgotten plug.
Izuku looks at it warily, anguished at the thought of it parting him open again now that he's aching. But Katsuki only wraps it with a nearby tissue, tossing it back to the side.
When he sits back straight, he lets his hands fall against the plush of Izuku's thighs, rubbing his fingers against where the stockings dig into the chubby flesh and make them protrude so cutely.
Izuku looks lost for a moment, as if he doesn't know what to do with himself now that he's not being punished.
"Oh, aren't you such a precious little princess." Katsuki presses their foreheads together, letting their lips brush as he praises him.
"Thank you, Kacchan…" Izuku whispers, eyes almost crossing as he tries to look down at Katsuki's mouth. Desperate for a kiss.
Katsuki grants him it, just a soft press of lips to lips.
"Of course, baby boy. Remember not to make such a mess next time."
Izuku sniffles wetly.
"Yes, Kacchan."
Then, punishment officially 'over', Izuku slowly begins to slide off of the couch so that he can stand and present himself. Katsuki likes it when he puts on a show for him, even if it's him awkwardly spinning to show off his entire body like a display statue.
Katsuki has something else in mind, though.
"Wait. Look at me?"
Izuku stills immediately and shakily lifts his head, still so obedient for him. Katsuki trained him well.
Katsuki lounges back against the couch, reaching over to take another sip of his drink as he just basks in the pretty picture his baby makes.
Izuku's face is flushed, mouth dropped open in what could be a pout if not for the way his lower lip trembles as he tries not to annoy Katsuki with his crying. And his eyes, so watery and full. Katsuki would pay thousands to keep that expression on his face.
Ruined. Debauched. His.
"Still gotta help my baby with his panties, don't I?"
Then, finally, Katsuki sets out to 'fix' the outfit. He tugs the g-string up, letting it dig into the sensitive skin of Izuku's stretched, empty hole. More of his cock gets covered this time, but his tiny, hairless balls end up sticking out of it instead. Not enough room.
Ah, well. It was kinda cute on him.
Izuku doesn't complain either way, of course. Just sniffles wetly when Katsuki snaps the elastic of the panties against the skin of Izuku's hip, and then pats the sting better.
"There we go. Now…"
Katsuki shoves Izuku off, finally, and the latter stumbles and falls to his knees. But when Katsuki holds his palm out, dirtied with Izuku's precum (and residuals of Katsuki's old cum), Izuku only takes a glance at Katsuki's calm face before he's crawling back for more.
"Clean it up."
Izuku's tongue shakes as he swipes through the mess Katsuki made him make. Head dipped between Katsuki's legs, for once not with his lips wrapped around his cock. The humiliation is even greater than when he's choking on a dick, instead made to lap up the cum kept warm from his own body heat, off of the couch like a dog begging for a treat.
Katsuki gets almost the same amount of satisfaction, dragging his spit-moistened fingers through Izuku's curly hair. The spilled cum must be cool now, but he tightens his fingers against Izuku's scalp so that he makes sure to savor the taste of it anyway.
Izuku pants, looking up at him as he holds his tongue flat to every so slowly swipe across the leather again and again and again until it's clean again.
"Good boy," he hums. "If you get every drop, I'll kiss your sore pussy better. How about that?"
Izuku moans, eyes sparkling with tears and adoration as he gives a shy nod. As if with that promise, the ache in his backside doesn't matter anymore. Kacchan is all he'll ever need, no matter what he does to him.
Katsuki grins.