⸝⸝ ⋆ KNOCK-OUT! ˎˊ˗
𓍼 premise! — your boyfriend, the #2 underground boxer in all of Japan, Eijiro Kirishima, went out of his way to snag you a ticket to his match! However, after coming out of it with some wounds and an overworked body, you decide to show him what a real knock-out feels like.
: content: boxer!kiri x reader!, aged up kiri obv, smut [minors dni!], (slight) violence, blood, profanity, some fluff, KIRIBAKU REFERENCE 😝😝, semi-public sex (public bathroom), bakugo mention AND appearance, a somewhat long buildup to smut scene, brief fingering, unprotected sex, cowgirl/riding, and of course, concerningly hot boxer!kiri 😋…
The smell of crimson, musk and gunpowder filled your senses as you walked along the cracked pavement of the sidewalk, the dark setting that is evening enveloping you as you stop at the beginning of a dark alleyway.
Hesitantly, you walk down said alleyway, before you realize that you’re standing in front of a trap door, glancing at the crumpled up ticket in your right hand.
This should be the place, right?, you question internally, taking a moment to look around one last time before kneeling down to open the door, the first thing that meets your gaze is a rubbled staircase.
As you walk down the dimly lit, closed in space, the sound of unfiltered cheers and fists meeting bones becomes more apparent. At the end of the hallway stands a large, bulky man in all black, which you assume is a bouncer of sorts.
“Your ticket, ma’am?” He questions, raising an eyebrow.
You place your ticket in his hand, to which he nods in response and opens the door.
The sound of screaming and people yelling bets ripples into your eardrums as you step through the entrance, the air smells like worn rubber and dried out blood. Your sharp gaze glides over the insanely large underground crowd—until you see him.
Crimson red, spiky hair, boxing gloves a deep red that rival his shorts, glistening in sweat, chest heaving in both adrenaline and exhilaration as he delivers the finishing punch—
WHAM!
To the ground the punched man falls, knocked out cold, blood spilling from his nose onto the mat of the ring. The crowd roars in victory as the referee checks on the boxer’s very unfortunate opponent. That, whether others believe it or not, is your boyfriend, Eijiro Kirishima. Famous in the underground world of boxing, hell, he was only the #2 boxer in all of Japan because of Bakugo himself, who Kirishima will face off against in the championship.
With a smile, you sit down in the front row, courtesy of the ticket Kiri bought you. As the next opponent steps up, Kirishima’s eyes hastily glaze over the crowd, obviously looking for someone—until his eyes land on you. He immediately straightens up, readying his stance as he shoots you his signature toothy, boyish grin. You straighten up, smiling a bit brighter in response.
The referee blows his whistle—TOOT!—and the match begins. The crowd bustles as Kirishima and his opponent exchange attacks—fists crack, blood splatters, cuts are exchanged—it was terrifying, yet you can’t seem to look away.
By the end of it, Kirishima lands a nasty right hook to the guy’s face, launching him into the side of the ring before he falls to the ground. You audibly sigh in relief, clapping alongside the others in the crowd despite your worry.
Kirishima, who now has a gash in his side, drags himself off the ring, going to the locker rooms to grab his bag. You trail behind him, catching up as you smile softly yet worriedly.
“Hey, babe. You did so good out there! Are you okay, though? I can stitch you up like always, just in the bathroom this time. I think that cut should be treated as soon as possible,” you insist, Kiri looking over to you with a fond yet tired smile gracing his features. “Sure, babe. Let me go grab my stuff and wash off,” he replies, before continuing to walk away as you head off to the bathroom.
”..Ow,” Kiri mutters in slight protest, tensing up slightly as you kneed the needle in between your fingers. He’s sat on the sink of the mixed gender bathroom, your hands tentatively working at the crimson-red gash in his side. “Kiri, I know it doesn’t hurt, you just want to be babied. Not very manly of you, if you ask me,” you remark, Kiri looking up with a sheepish yet teasing grin. “You know me too well,” he replies, causing you to snort.
You finally finish patching him up, taking a step back with a triumphant smile as you place your hands on your hips. “There. Much better. Now—I CAN’T BELIEVE YOU PUSHED YOURSELF LIKE THAT! I mean, I KNOW that getting hurt is apart of it, but damn, could you at least TRY to not end up having to go home with some sort of huge ass injury every night!?,” You reprimand him, hitting him upside the head as he waves his hands apologetically before finally resting his hands on your waist, pulling you closer. “I’m sorry, sweetheart. I’ll be more careful, okay? Don’t wanna worry you. But I’m tough, I’ll be fine regardless, yeah? I got you taking care of me anyways,” he replies, and then you sigh in exasperation yet acceptance. Now that you’re this close to him, you can really see just how worn out he is. Scars litter his strong, muscular arms, dark circles curl around the surface of his eyes, his hair is even messier than usual—if that’s even possible.
Your gaze softens at the sight.
You wish you could make him feel better somehow—
—and then it clicks.
A cheeky smile breaks through your face as you lean a bit closer, eyes darkening as your arms snake around his neck, your voice lowering a few tones: “You look so tired, baby...you must be working so hard. I can help,” you murmur, causing Kiri to blink in slight confusion yet appreciation, not quite catching the hint. “…Oh, really? Thanks, babe. What are you gonna—“ he begins, but before he can fully question what you’re doing, you grace him with a passionate yet tender kiss. He perks up, eyes widening in surprise before he registers what’s happening, reciprocating the kiss with a hum and closing his eyes as he stands up to lean back on the sink. His hands roam over your body slowly, tracing every curve and dip they can find. You moan softly into the kiss, pulling away to slowly climb on top of him, your legs placed on either side of him on the sink. Kiri smiles, hoisting your shirt over your head, discarding it onto the sink as his hand moves back to your body, one of them placed steadily on your thigh, grabbing at the soft flesh as the other finds its way under the waistband of your shorts, his fingers just slightly tracing the slick of you cunt. You moan in response, your face moving to stuff itself into his neck.
“Mm..already this wet for me, pretty girl? I’ve barely even touched you yet,” Kiri mutters, two fingers pressing lightly against your slick folds as they slowly slide into your cunt, pumping in and out with practiced precision.
You whine in response, huffing. “I—fuck—that feels good, but I’m supposed to be taking care of you, Kiri. Let me make you feel better,” you whisper into his ear, a chill running down his spine as you remove his fingers from inside of you, licking your own juices off of his warm fingers yourself before you slide your shorts down your thighs, the fabric falling to the floor.
You take his shorts off as well, the material joining yours on the ground as you press yourself against him, his hardness pressing against your clothed clit.
You smirk in a smug manner at the feeling, your hips slowly rolling against his in response. Kiri groans lowly, his grip tightening on your hips as he grinds against you in response, his hands moving down to your panties as he tugs them down. “Just—shit—just like that, baby…” You bite your bottom lip, sliding his boxers down as well to reveal his thick, flushed cock.
He’s insanely pretty. The tip is soft, cherry colored and leaking with pre-cum from pure anticipation. Veins align the sides of the very canvas that is his length—and though he may be more wide than long, that’s not saying much considering he’s a whopping seven inches.
You line himself up with your clit, your pussy fluttering in anticipation as you make eye contact with him, lowering yourself onto his cock inch by inch, whimpering at the stretch of your cunt. “Mmph—Kiri!,” you moan out, beginning to move up and down, your chest involuntarily bouncing with each movement. Kiri moans, his hands moving to squeeze your ass, squishing the soft flesh as you ride him, grounding the both of you. “You can do it, pretty. Keep goin’, you’re doing so good for me, you’re so tight…” he encourages, gripping at your ass as you whine, panting slightly. Your movements grow messier and quicker as you get closer and closer to the edge, squelching noises echoing through the bathroom as his cock goes in and out of your pussy.
“Kiri, I think I’m—shit!” You cry out, your orgasm overflowing your senses as you ride him through it, thighs twitching involuntarily, your pussy clenching around him just a bit tighter as your juices flow down his length. That causes him to let go himself, his cum filling you as he guides you up and down, having you ride out his orgasm as well, the excess of it dripping down your thighs before you finally go limp against him, both of you panting and dripping with sweat.
After a few seconds of silence, Kiri finally pipes up: “..Damn. That was a knock out, babe. Wanna head to the ring with me?,” he jokes, you laugh in response, the sound bouncing off the walls of the bathroom. Then—there’s the sound of flushing, and a guy steps out. His hair is blonde, messy in a way that’s almost explosive—and there’s a half-amused, half-disgusted scowl plastered onto his face. Bakugo!?
“You damn extras need to quiet the fuck down. Can’t even take a piss in piece.”
𓍼 authors note! - ahhhh this was my first time attempting smut, i hope u guys enjoy it !! boxer!kiri is soooo fineee (he’s such an ass over tits man lmao) 🤤🤤,
tysm for the request @riotsgrl! luv you girl <33