Happy birthday to me! I wrote myself a gift

Kiribaku, NSFW, premature ejaculation, accidental exhibitionism/ voyeurism, idiots

"Bakugou couldn't do anything sexy if he /tried/!” Kaminari called out with a loud laugh that everyone in the common room joined in with.

Katsuki felt a vein in his temple throbbing as he bared his teeth and tried to count to ten in his head before he was tempted to cross the room and blast Dunce Face to hell for the insult.

They were in the common room, eating junk food and drinking light, crappy beers on their day off from hero training.

But when the conversation turned to who had the most sex appeal in the class, it became clear that not one of these fucking idiots believed Katsuki was capable of being anything other than loud, angry or sulky.

‘And pulling horrible faces’ was added by Mina with another laugh that everyone echoed.

And okay, the fact that they had no faith in him made him want to shout and blast things and pull faces, but shut the fuck up. He could be goddamn sexy if he wanted to be.

Not that he cared about that shit anyway.

Kirishima slapped a hand to his thigh and guffawed before wheezing in a breath and adding, “HA! Blasty asking someone out, I'd pay to see it! Or asking for a kiss like, ‘kiss me now, you shitty bitch’. I can't, that's too good.”

That's it.

That's fucking /it/.

Katsuki snapped to a stand and all eyes settled on him immediately, everyone obviously expecting an explosion. They clearly didn't expect him to point at Deku and Todoroki and almost calmly growl, “move, losers, I've got a bone to pick with Shitty Hair.”

An odd, suddenly nervous hush fell over the room as Kirishima’s eyes widened with surprise and he stared dumbly at Katsuki like he wasn't sure what he'd done wrong.

Idiot.

Icyhot and Deku moved when Deku grabbed and pulled the dense bitch away quickly, giving Kirishima a look of apology and a nervous smile.

Katsuki pulled off his black tank top almost teasingly slow and the room fell completely silent. He swung it around twice, smirking victoriously already when his best friend's jaw dropped like it was suddenly unhinged and his cheeks flushed pink.

Katsuki tossed his shirt at Kirishima and it landed on his crotch, hands automatically moving to hold the material like it had just been given to him.

He was stock still as Katsuki picked up his half drank glass of water (no way was he getting in trouble for drinking) and tipped it down his torso. Cold water splashed and ran down his pecs and abs in ruvlets, soaking into his sweatpants to wet his waistband and crotch.

Kirishima swallowed thickly but didn't move an inch as Katsuki set the glass down and stepped towards him slowly.

He skimmed a hand up his torso, and when he was close enough that only his best friend would see properly, grabbed and squeezed a firm pec, before thumbing over his nipple and hissing in a breath.

“Fuck, that feels good.” He whispered, rough and seductive as he leaned over to get in Kirishima's face. He smirked and ran the tip of his tongue over his top row of teeth.

Red eyes stared directly at his mouth instantly, and he heard a loud gulp as Kirishima turned just a shade darker with embarrassment.

Katsuki didn't wait any longer, he put a hand on his best friend's shoulder and sat straight in his lap, thighs caging hips as he got even further in Kirishima’s face and let his eyes drop to half mast.

Kirishima’s hands were rigidly out at their sides, clenched as fists as his nostrils flared and he drew in a sudden, sharp breath and pressed his lips together until his mouth was a tight seam across his face.

And Katsuki realised why almost immediately.

Kirishima was as hard as goddamn rock between his legs and he looked as though he was equal parts mortified, and still helplessly turned on as he watched realisation fall over Katsuki's face.

Shit, Eijirou was /hung like a fucking horse/.

How had he not ripped the front of his shorts with that thing??

Well, he definitely couldn't deny that Katsuki had sex appeal any more, could he?

He knew that he should stop now that he'd proved his point, and probably get up to let his embarrassed best friend excuse himself to take care of his absolutely raging hard on.

But Katsuki had never really been one to quit while he was just a little ahead, never been one to do the bare minimum and throw in the towel.

He felt an almost evil smile split his face, before he corrected it to something more sultry as he leaned in and sat up a little, purposely shifting in Eijirou's lap, biting his bottom lip when he felt thick cock twitch violently against his taint and balls through their clothes.

“/Best seat in the house/.” He growled, low, rough and rich with smokey heat.

His own cock began to swell, and as he watched, red eyes widened with shock, before Eijirou looked down at the bulge in Katsuki's sweatpants and /whimpered/.

His fists clenched and unclenched at their sides and Katsuki decided to take it up a notch. He linked his fingers behind Eijirou's neck and ground their hips together /hard/ as he leaned in until his lips brushed the shell of a heated, flushed ear.

And then he moaned, low, breathy and made to arouse. He kept it quiet but he knew his classmates had heard it, because a dropped pin would be heard in the room right then.

“/Oh god. Oh my god/-” hardened hands grabbed his hips suddenly, and Katsuki wasn't sure if his best friend was trying to stop him or move him faster, as he sat back to see Eijirou's eyes blown wide, +

+ before they closed and his head dropped back on his shoulders, “-/oh god what the fuck Katsuki? That's so hot/-”

Eijirou's hips bucked up involuntarily, and Katsuki was definitely smirking as he leaned in this time.

“/Kiss me now, you shitty bitch/.” He copied what the redhead had jokingly said earlier, before flicking his tongue out to lick the shell of his ear with a small moan at the friction from another particularly good grind forward.

They should probably take this somewhere else before things got completely out of hand. Katsuki knew a discussion of some description needed to be had, but right then all he could think about was the aching in his cock.

But hardened fingers dug suddenly into his hips, stilling him as a loud, helplessly relieved moan punched straight out of Eijirou and his cock pulsated between his legs.

Katsuki's jaw dropped and his eyes widened in shock when his best friend's forehead thudded heavily against a still wet pec a long moment later as he caught his breath.

Holy fuck he'd come. He genuinely just /came/...in front of almost their entire class!

Katsuki's cock twitched and he felt a bead of pre come smear wetly into the material of his boxers.

“Oh no…” came a clearly embarrassed whisper, followed by a breathless, disbelieving laugh. “Are they- is everybody looking at me?” He asked quietly.

Katsuki didn't even bother checking, simply carding a hand through Eijirou's unstyled hair. “No. They wouldn't fucking dare. Or I'll blow the whole dorm building straight to hell.” He added pointedly over his shoulder.

Immediately the sounds of shuffling and awkward coughs surrounded them as people began moving and shifting.

“Uhh, we should totally take this party outside. It's a great night for it.” Uraraka said, a nervous crack to her voice, even as people quickly agreed and bottles clinked as they were collected.

“Guys, is it gay that I have a boner right now?” Kaminari asked and jirou made a sound of disgust.

“Yes, Kaminari. That's pretty gay. And you're such a pervert, they're literally our friends.”

“I think I'm gay too then. And a pervert.” Todoroki deadpanned and Katsuki heard Deku instantly choke on his own tongue and splutter.

“That behaviour is completely unacceptable and you two should be ashamed of yourselves. If I-”

“Iida, we can all see your boner from here, you can't say shit this time.” Kaminari checked the class president before he could bitch them out anymore, and Eijirou snorted a short laugh against his pec.

He still hadn't looked up, and Katsuki knew it was because his face was bright red, he could feel the heat of his skin against his.

After another round of shuffling that lasted a minute or so, they were finally alone.

Katsuki's cock was still half hard, but his arousal had flagged with everyone talking and saying dumb shit as usual. Though he needed to check how Eijirou was before maybe getting himself off.

“You good?” He asked gruffly. He hadn't expected his dumb best friend to actually cream his pants at a little teasing and a few hard rolls of his hips. Wow.

But Katsuki couldn't fight the smug, victorious grin that spread across his face as Eijirou finally lifted his head to look up at him, hands still on his hips shaking just a little, as sharp teeth sank into a plump, bitten bottom lip.

But the redhead pouted at the look on his face and averted his gaze, snapping his whole head to the side as that increasingly delicious looking lip stuck out.

“If you're gonna make fun of me, do it quick, ‘cause I need to go change my boxers and maybe book a flight to the middle of nowhere.” His cheeks flushed ever more red and he took a shaky breath, before meeting Katsuki's gaze again.

“You can't just suddenly get all sexy and manly like that out of nowhere. I thought my heart was gonna explode! And then /I actually did/! Oh god-” he groaned loudly and threw his head back against the sofa.

“I didn't think it was funny, idiot-” Katsuki rolled his hips again and the redhead moaned “I thought it was fucking /hot/.”

He dropped forward to bury his face against Eijirou's neck, sliding his hand into his sweatpants to take himself in hand, groaning as he began working himself firmly.

“Can you kiss me? I really wanna come.” He panted, actually asking for real this time, not simply pettily winding up his best friend.

“Oh god-” Eijirou sounded a little like a stuck record with all the ‘oh god’s falling from his lips tonight, but Katsuki didn't mind because /he'd/ been the cause of them.

He found himself yanked away from an almost feverishly warm neck, before soft lips took his desperately and a loud moan of appreciation filled his mouth.

Eijirou's hand nudged at his wrist, tapping a couple of times like he was asking permission to touch, and Katsuki nodded rapidly, deepening their inexperienced, sloppy kiss.

The next thing he knew he was on his back on the sofa with his best friend on top of him, humping his thigh with another needy groan as rough fingers shoved right into his boxers to take over.

Katsuki's back arched and he broke the kiss, sinking teeth into his bottom lip in an attempt to stifle a moan that everyone would have definitely heard even from the courtyard. Holy /fuck/ someone else's hand felt so much different, so much better than his own ever had.

Eijirou was over him, half crushing him as he humped and practically whined into Katsuki's ear.

“/You're so hot. So fucking hot, it's not fair. You sound so good, so beautiful/…” he was rambling, panting breathlessly as he worked Katsuki's cock faster, jerky and uneven but so fucking good as he licked and sucked at his neck.

“I wanted to ask you out. I've always wondered what you'd look like like this. Does it feel good? Am I doing it good?”

Katsuki had never really thought on how hot pure, unadulterated, desperation and /need/ would be, and it had heat pooling rapidly in his gut as Eijirou continued to half beg and praise and chant in his ear like Katsuki was some kind of god to him.

He nodded so hard he felt his brain rattle, back arching before he found his voice. “/Yes, s’good. Don't stop. Don't you dare fucking stop Eijirou. It's so good. Gonna make me come, g’na make me/-”

He was begging. Was he begging? He'd never begged for anything before in his life.

But every nerve ending in his body was on fire, Eijirou's heady musk and the scent of sex and come filled his head as he took a shuddering breath in and held it, +

+ screwing his eyes shut tight, trying to fight off an embarrassingly quick orgasm, before simply giving in and thrusting up to meet every pump of that amazing calloused hand.

“Eijirou please. Oh fucking- please. I'm so- kiss. Kiss me-” he panted, uncaring of the pleading tone in his usually gruff voice.

They were both practically begging each other for more, and it was the hottest thing Katsuki imagined he would ever experience in his life.

The second Katsuki felt sharp teeth scrape his bottom lip and Eijirou's eager tongue slide against his, he was lost.

The air punched from his lungs to fill the redhead's mouth on a loud moan that their fevered kiss couldn't hope to muffle as he soaked his boxers and the hand still working him fast and hard.

He'd never come so hard in his life, and as much as it probably should have caused shame to zing up his spine, he couldn't give a shit about the tears he felt slip from the corners of his eyes as he collapsed back and weakly rolled his hips, +

+ still coming as an almost pathetic whine broke from him and his eyes rolled back in his skull.

Katsuki opened his eyes a few seconds later when Eijirou's hand stopped moving, only to find his best friend staring down at him, jaw dropped and eyes wide as they caught their breath.

“Shit. That was the best thing I've ever seen in my life. I could go blind right now and I'd be happy.” He breathed quietly, clearly awed.

“Told you I had sex appeal.” Katsuki panted gruffly, before his face split in a smug grin he knew he had no business flashing right then, after he'd begged and pleaded for his best friend not to stop touching him, tears drying on his face.

Eijirou snorted a shocked laugh and buried his face in his shoulder.

“No you didn't. You said you had a bone to pick with me and then sat in my damned lap like a stripper. I can't believe I came in front of everyone.” His words were muffled against damp skin, before they were both laughing at their own expense.

Katsuki felt Eijirou's hard cock against his thigh and wormed a hand between their bodies to squeeze it firmly, dragging a low groan from the redhead. “I mean, I can do it again, in private, if you want?” He offered quietly.

Eijirou sat bolt upright, expression shocked. “Seriously?? YES! I mean, yes please.” He was up off the sofa in seconds, grabbing for Katsuki's hand with an excited smile on his face, pulling him up.

“Do you wanna go on a date tomorrow...maybe?” He ventured, sharp teeth worrying his bottom lip as they passed by the courtyard door to head upstairs, hand in hand.

Sero, Kaminari and Mina all whooped and cheered like the shit heads they were, and Katsuki flipped them off through the large windows and fought a blush, pulling Eijirou along faster.

“Yeah. A date sounds good.” He agreed with a smile he couldn't fight.

He'd make sure he looked smoking hot for it too.

~END

I hope you enjoyed my self indulgent gift to myself haha

I put this on ao3 a little earlier if you'd like to read it with proper formatting or leave me a permanent comment that Twitter can't swallow

https://archiveofourown.org/works/26238265