Possessive sex + praise kink: A special #kiribaku thread

AKA happy birthday to Bakugo Katsuki, a crafty bottom who knows exactly how to make his boyfriend jealous

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Alcohol still hums lightly in Katsuki's veins as Kirishima shoves him up against the door to their apartment.

He'd been fighting it throughout the uber ride, but Katsuki finally allows his mouth to twist into a smug smile, caged in between Kirishima's arms having gotten exactly what he wanted.

"Don't smirk at me," Kirishima mutters, pouting. "You're using all my weaknesses against me."

And Katsuki hasn't even played all his cards yet.

His lip curls and he leans in, ghosting his lips over the line of Kirishima's jaw. "Did I tell you I'm wearing panties?"

"Jesus fuck," Kirishima moans. "The whole time?"

Katsuki nods.

"That means - e-even when you were-"

Katsuki kisses right below Kirishima's ear, sucking on the patch of skin for a few seconds just to make him squirm. "Yeah."

Kirishima shoves him harder against the door and his hands drop to Katsuki's hips, making his heart race in the peaceful stillness of their apartment.

"You were talking to all those people, letting them practically feel you up, and you were wearing /panties/?"

Katsuki smirks. "What're you gonna do about it?"

Kirishima growls and his hands tighten on Katsuki's hips. "Gonna remind you who gets to take you home."

His kiss is so forceful Katsuki's head knocks back against the door, earning him a whispered apology from Kirishima in between pulls of his lips. He clings to Kiri's biceps as his boyfriend shoves a thigh between his legs and presses right up against his semi, making him whine.

Kirishima's not typically a jealous person when it comes to Bakugo and his fans, but there's a difference between a meet-and-greet and a run-in at a bar. Since coming out, Bakugo gets hit on a ton by guys his age (and much older) when he goes out, and it drives Kiri up the wall.

He squeaks and claws at the back of Kirishima's shirt when Kiri leans down and sucks a painful bruise into his skin, leaving the skin of his throat throbbing when he pulls away. He does it again, and again - Katsuki's gonna have so many marks tomorrow-

"Fuck, Ei..."

"Mmm," Kirishima hums against his neck. "Everyone's gonna know you belong to me."

Katsuki grins and tips his head back, running his hands down Kirishima's back before settling on his ass. He pulls Kiri's hips forward and hisses at the pressure against his dick. "Fuck yeah I do."

Their next kiss is so vicious that their teeth clack, both of them breathing heavily as they hump each other against the door. Kiri's ass is so muscled and plump in Katsuki's hands that he never wants to let go.

"You're mine," Kirishima breathes. "Don't fucking forget it."

Katsuki moans. "Ei... can you remind me?"

"What?"

"That I'm yours."

Kirishima presses their foreheads together and takes a second to breathe, his nails digging into Katsuki's hips. Finally, he growls, "Only because it's your birthday."

Katsuki grins. He always makes up an

excuse or a special occasion, but as Kirishima kisses him and hurries him backward through their dark apartment to get to the bedroom, Katsuki sighs happily with the knowledge that Kirishima is wrapped around his little finger and will do this whenever Katsuki wants.

Katsuki may be Kirishima's, but Kirishima is his, too.

"Mn, I think- I need to be- taught a lesson," he purrs in between kisses, then cringes at himself. Taught a lesson? There's no way Kirishima won't laugh-

"Fuck yeah you do," Kirishima mutters, shoving him onto the bed.

Oh.

"Take your clothes off."

Katsuki feels a flush travel down the length of his body. He reaches for the hem of his shirt, but can't resist the opportunity to be even brattier. "I have to do it myself? I bet those other guys would've done it for me."

Kirishima's eyes flash.

"Fuck," he mutters, climbing onto the bed and grabbing Katsuki's shirt. "Even though I know you're just trying to rile me up, it's still working."

They both giggle softly, but then Kiri practically rips the button off of Katsuki's pants and suddenly neither of them are laughing.

Before Katsuki knows it, he's down to just his panties - black lace boyshorts - and a fully-clothed Kirishima is looking at him like he wants to eat him alive.

"You're so pretty, Katsuki," he breathes, forgetting his anger for a second.

Katsuki's heart does a flip in his chest.

"And I'm the only one who gets to see you like this."

Katsuki tugs half-heartedly at Kirishima's shirt but abandons his efforts with a moan when Kiri rubs a palm over the head of his dick through the lace, coaxing a blurt of precome out as he strains against the flimsy material.

It took him a few years to come to terms with it, but now that he's in his mid-twenties Katsuki has no trouble admitting that he likes wearing lacy underclothes. He never wears them for pro hero work, but when he's off-duty like tonight, all bets are off.

"Look at that."

Kiri's voice is soft, amazed. Katsuki looks down and sees the obscene bulge of his cock, accentuated by the lace stretched to its limit. "Nnnngh..."

"Imagine if those guys at the bar saw you like this," Kiri murmurs. "They'd wonder who the lucky man is you're wearing these for."

For some reason, that of all things makes Katsuki blush and he ducks his head, suddenly shy. Even in the low light Kirishima seems to notice because he grins, sharp teeth flashing, before pressing a quick kiss to Katsuki's forehead and climbing off the bed.

"Get on your back."

Katsuki starts to lay down, but-

"Head down by me."

As he gets into position and realizes what Kiri wants to do, he can't help but moan. His boyfriend is going to stake his claim by using his throat like a toy. Katsuki can't think of anything snarky to say, overcome with want.

"Is this okay?" Kirishima asks as he unzips his own pants. They've done this before, but there's still a note of hesitance in his voice.

Still overcome, Katsuki just whispers, "Yeah."

His hands stray toward his dick, throbbing against the lace, but before he can touch himself,

Kirishima grabs his wrists and pulls them up toward his head. "Ah-ah, no touching yourself. This isn't about you getting off."

With Kirishima taking control like this, Katsuki's afraid he might anyway. He nods, though, and scoots up so his head's hanging off the edge of the bed.

He practically drools when Kirishima finally frees his long, fat cock from the confines of his pants. Even from an upside-down view like this, it's the nicest-looking cock Katsuki's ever seen.

He's so distracted by Kiri's dick that he nearly chokes on the two thick fingers that

get shoved between his lips, fucking his mouth and smearing saliva everywhere. Katsuki moans and starts to suck on them, licking between them and tightening his lips like he's giving head.

"Fuck, your mouth is perfect," Kirishima breathes. "All for me."

Katsuki nods eagerly.

He feels Kirishima shudder before he pulls out his fingers, smearing a trail of spit across his cheek. Katsuki squirms, knowing he's going to get a lot messier before the night is over.

"Ready, babe?"

Katsuki nods again.

His eyes are closed, so he can't help the little gasp of

surprise he lets out at the first touch of Kirishima's cockhead against his lips. Kiri traces around them, painting them with precome; Katsuki licks it up and moans for more, dick twitching in his panties.

"No one else gets to see you like this," Kirishima murmurs. "Just me."

Katsuki nods again, tightening his grip on Kirishima's thighs, and relaxes as best he can when Kiri starts to push forward, sinking his cock into Katsuki's mouth.

"Fuck, that's perfect." Kirishima draws an inch out to get his dick wetter, then pushes even deeper. Katsuki groans.

"Katsuki..."

He's got both hands fisted in Katsuki's hair now that he's inside, tugging sharply until Katsuki tilts his head back further. Katsuki shifts restlessly and tries to hump up against his lace panties, seeking any kind of friction he can get.

"Katsuki, I'm so lucky."

Katsuki's eyes widen as the unexpectedly sweet words register, heat pushing him even higher. He tries to say something but cuts off with a gurgle as Kirishima slides deeper still, past where his gag reflex would be if he still had one.

(You don't date a guy like Kirishima since

high school and keep your gag reflex.)

"Shiiit," Kirishima groans, stilling for a second. Katsuki tries to work his throat around him, tries to use his tongue to make it even better, and he feels his boyfriend shiver. "That's perfect. You're so fucking good at this."

A second later he bottoms out completely, Katsuki's nose buried in his pubes, ballsack pressed against his forehead. It's degrading and ridiculous and exactly the kind of shit that gets Katsuki hot. Now if only Kirishima would keep talking...

"Are you okay?" Kiri whispers.

Katsuki nods as best he can and lets go of Kirishima's leg to give him a little thumbs up.

"Mmm." Kiri strokes over his face. "Of course you are. You were made for this."

Katsuki whines, sucking in air when Kiri pulls out halfway only to thrust back inside.

"Made for me."

Katsuki can feel the wet spot on his panties growing larger as Kirishima starts to fuck his throat, pulling his hair to make sure his head stays tilted back. Fuck, Katsuki wishes he could see what Kiri looked like right now. It's taking everything in him not to touch himself.

"You're being so good," Kirishima breathes, panting quietly as his balls smack against Katsuki's forehead. "You must wanna touch yourself so bad."

Katsuki wails for a second before the cock down his throat cuts him off. There's heat simmering in his belly and he wants- he needs-

Katsuki’s toes curl and he gurgles in pleasure when Kirishima runs a finger up the side of his throat, feeling how stuffed it is. Then Kiri reaches down to tweak a nipple and Katsuki jolts like he’s been electrocuted, his own hands flying down in desperation to touch himself.

Kirishima’s quick to grab both of his wrists, burying himself to the hilt as he reaches down to stop Katsuki from playing with his cock. Katsuki’s horrible, strangled wail barely makes it past his vocal cords.

“Shh, not yet, Katsu,” he murmurs. “I’ll get you there, I promise.”

Katsuki arches his back in an attempt to get Kiri to go back to pinching his nipples, but other than that he tries to settle down a little, focusing on the sensation of Kirishima’s cock sliding in and out of his throat. The dull ache of his jaw. The drool running down his cheeks.

“Yeah, just relax,” Kirishima soothes him. “You’re being so good.”

The praise washes over Katsuki’s body and he settles further, practically melting into the bed. Now the wet noises of Kirishima fucking his throat seem especially loud and obvious, slick and dirty.

Katsuki arches his back again, rubbing his ass subtly against the bed, and groans at the subtle shift of the lace over his cock. It’s nowhere near enough friction, but it feels so good that Katsuki can’t stop once he starts.

“Fuuuck, yeah,” Kirishima moans. He presses in and

stays there for a few seconds. Katsuki squirms, then shrieks when Kirishima lets go of his wrists and reaches down to finally touch his nipples again.

The heat that had been simmering in his belly /ignites/ as pleasure-pain travels from his nipples down to his cock.

The rub of the lace is suddenly too much to bear, and Katsuki finds himself hurtling toward orgasm with nothing more than his boyfriend’s fingers on his nipples and panties against his dick. The slide of cock down his throat feels even better than it normally does.

“Jesus, Katsuki.” Kirishima plucks at his nipples and rolls his hips, burying himself to the hilt again. “Are you - you’re gonna come, aren’t you?”

Katsuki isn’t sure if this is enough - he’s close to the edge but he hasn’t fallen yet. His head is swimming. He needs a push.

"Sh-shit," Kirishima stammers.

Katsuki wishes he could see what his boyfriend looks like right now, the powerful thrusts of his hips. He shudders and twists his hips, working himself into a frenzy and clinging to Kirishima's thighs as he resists the urge to touch himself.

Kirishima groans and rolls Katsuki's nipples between his fingers, pinching until Katsuki's eyes roll back and precome soaks his panties. "You could have me any way you want for your birthday and you're about to come just from getting your throat fucked? You're amazing."

Katsuki's choked-off wail vibrates around Kiri's dick and he digs his nails into Kiri's thighs as he feels himself start to come, spilling into the lace stretched tight over the head of his cock. He trembles, trying to pull his thighs up and cross them for more friction, but he's

weak from pleasure and he just ends up moaning and twitching, his head hanging off the edge of the bed as the rest of his body goes limp.

"Oh my god," he hears Kirishima breathe. "Oh my god, Katsu, you're - holy /shit/."

He pulls out a second later and Katsuki whines, hoarse.