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Sero and Kaminari were notorious for making stupid bets. Over the course of almost three years, their wagers had become increasingly risque. Last week, after losing a round of Super Smash Bros to Kaminari, Sero was forced to ask out Bakugou in front of their entire class, including Kirishima (his boyfriend). Needless to say, the “confession” went just as poorly as expected. Sero rolled his eyes as Kaminari’s hysterical laughter escalated when Bakugou lunged at him and Kirishima didn’t even attempt to hold him back. “That was spectacular.” Kaminari smiles as he recounts the story. He buries his face in Sero’s chest to stifle his uncontrollable giggles. “Y-yeah, man,” Sero replies, glad Kaminari is too distracted to notice the blush dusting his cheeks. “Almost as good as the time I got to wax all of your leg hair off with my tape.” Kaminari groans at the memory. “Dude, I hate you. It still hasn’t grown back.” Sero ruffles the smaller boy’s hair gleefully. “I don’t know, bro, I bet you could rock a skirt and some heels with those legs.” Sero mentally slaps himself as his brain starts to conjure up images of his lightning blonde friend in that outfit, bending over and begging for— “Is that supposed to make me feel better?” “No, but it has given me a good idea,” Sero replies with his signature toothy grin. “We do a one-on-one battle. The loser has to be the winner’s slave for a day.” Kaminari raises an eyebrow. “So if I lose you’re gonna make me wear a skirt and heels?” Sero shrugs easily. “I guess you’ll see when I win.” “Dude, that’s kinky as hell,” “Get your mind out of the gutter, bro,” Sero retorts. “It’s not like I’m gonna make you give me a lap dance or something.” “I wouldn’t mind,” Kaminari says quietly. “What? ” Sero asks, wondering if he heard the blonde boy correctly. Kaminari’s face immediately turns a deep shade of red. “N-nothing! Uh- fuck- no homo!” Sero cackles as Kaminari shoves him and stands up, stumbling towards the door. “Meet me downstairs in ten minutes, alright?” Sero calls after him. Kaminari shoots a shaky thumbs-up over his shoulder as he scurries out the door and slams it behind him. Sero groans and buries his face in his hands. Did Kaminari really just say he was willing to give him a lap dance? Thoughts of his blonde friend grinding on his lap plague his mind as he slips on his hero costume and boards the elevator down to the common room. The elevator comes to a sudden halt when it reaches the third floor. The doors slide open, revealing Kaminari in his full hero costume, tracing a finger along his choker absentmindedly. He looks up and visibly gulps when he sees Sero smirking at him. “G-get ready to- uh… lose!” Kaminari yells as he leaps onto the elevator before the doors shut. “Damn, dude, that’s some great trash talk,” Sero mocks, Kaminari’s embarrassment fueling his confidence. “I’m shaking in my boots.” “S-shut up!” Kaminari whines, weakly kicking at Sero’s shin. Sero lets out an exaggerated howl of pain and theatrically grips his leg. “Fuck, man, save that shit for the battlefield!” he teases. “You can’t tell me what to do~!” Kaminari practically sings. Sero narrows his eyes at the smaller boy, then reaches forward and hooks a finger beneath his choker. “Maybe if I win I’ll put a leash on you instead.” The elevator dings, signalling their arrival at the ground floor. Kaminari bats Sero’s hand away, clearly flustered as he stumbles out of the elevator. Sero follows after him, wrapping his arm around the blonde’s shoulder as they make their way through the common room. “You’re the worst,” Kaminari mutters as he leans into the taller boy’s embrace. “What the fuck are you idiots doing?” A familiar voice calls. Sero and Kaminari both look over to see Bakugou laying on the common room sofa, resting his head on Kirishima’s lap. “We’re gonna fight!” Kaminari replies cheerfully. Kirishima immediately shoots up off the couch, accompanied by a soft grunt as Bakuou’s head softly falls back against the now empty cushion. “Training is super manly!” He gushes. “Can I come too?” “Um, actually…” Kaminari trails off awkwardly, looking up at Sero helplessly. “We’re just doing a one-on-one,” Sero says. “Denki and I made another bet.” “It better not involve me this time,” Bakugou growls. “Nah, the loser has to be the winner’s slave for a day,” Kaminari replies nonchalantly. “Sounds kinky,” Bakugou mocks. “Says you!” Kaminari retorts. “All I hear every night from your room is; oh my god, shitty hair! Fuck me harder, ahhnn~ fuck my guuuuuts!!! ” Sero doesn’t know whether to laugh or moan as Kaminari dances around the room, avoiding Bakugou’s explosive blasts while “impersonating” his slutty cries of pleasure. Needless to say, Sero’s dick is very confused by the odd display. “You’re fucking dead, Sparky!” Bakugou howls. “Eijirouuuu ~ Save meeeee!” Kaminari cries as he leaps right into Kirishima’s arms. Sero feels a wave of jealousy surge through him, but it quickly morphs into amusement when he sees Kirishima’s face turn nearly as red as his hair. “Let go of him, dunce face!” Bakugou shouts. “Oh, Eijirou, my sweet prince,” Kaminari swoons. “You’re so big and muscular, I can’t believe I’m being held in the arms of the guy who manhandles the great Kacchan every night!” Sero swears he sees Kaminari quickly glance over at him. Almost as if he’s checking his every reaction.  “Shitty hair is mine, you dumb fuck,” Bakugou growls. “If you want your slutty twink ass filled so bad, why don’t you ask tape face over there to fuck you.” “S-slutty twink ass?” Kaminari repeats. He’s trembling slightly, looking as if he’s about to short-circuit out of embarrassment. Bakugou’s anger seems to die down when he sees how hard Kaminari is blushing. A smirk quickly forms on his face. “Yeah, you’ll probably lose that stupid bet on purpose just so you can get his cock inside you.” “W-what the hell are you even talking about, man?” Kaminari stutters out. “Hanta and I aren’t… like… that .” “Yeah, right, but you’re willing to be his fucking slave ?” Bakugou scoffs. “Give me a fucking break.” “Ignore him, Denki. You’re super manly and powerful, I’m sure you’ll kick Hanta’s ass!” Kirishima shouts as he finally places the electric blonde back on the ground. Kaminari grins up at the redhead, then turns to face Sero. “You hear that, Hanta? Maybe you’ll be the one who ends up wearing a skirt and heels.” All four boys nearly scream in terror when they hear an excited squeal from behind them. “Oh my god! You guys are gonna crossdress? You can borrow some of my clothes if you want! I bet Denki would look super cute in my old cheerleader uniform—” “MINA!” Kaminari shrieks. “Oh great, the final member of the idiot brigade has arrived,” Bakugou groans sarcastically. Sero snickers at the comment, but halts abruptly once he realizes that he is also likely part of this so-called idiot brigade. “Rude!” Ashido pouts. “I’ve been here for a while, you guys were just too busy flirting to notice.” “Who the fuck was flirting?” Bakugou hisses. “Mina, eavesdropping isn’t very manly,” Kirishima points out. The pink girl rolls her eyes. “You guys were screaming like lunatics, I’m pretty sure the entire dorm heard you, whether they wanted to or not. They’re probably too scared to come downstairs though because it sounded like you guys were banging.” “Gross, dude!” Kaminari groans, but Sero notices the slight hesitance in his voice. “You started it!” Ashido retorts. “I definitely heard you scream “fuck my guts” earlier. I ran downstairs just so I could scold you for that horrible dirty talk!” “I was just impersonating Ka—” Kaminari is tackled to the ground by Bakugou before he has a chance to finish his sentence. “Jeez, can you boys keep your hands off of each other for five minutes?” Ashido sighs with a teasing grin on her face. “Shut the fuck up, raccoon eyes!” Bakugou shouts as he maneuvers Kaminari into a headlock. Sero realizes that he should probably help his friend, but it’s pretty amusing watching him squirm around in Bakugou’s faltering grasp. “Babe, please,” Kirishima says gently. “What did I tell you about trying to kill Denki?” Bakugou lets out a defeated sigh. “It’s not very hero-like.” Kaminari begins cackling hysterically as the explosive boy releases him. “Damn, I didn’t know Kacchan was so whipped!” “Shut the fuck up, Sparky!” Bakugou growls. Sero shoots some tape out of his elbow, wraps it around Kaminari, and reels the smaller boy towards him before Bakugou actually tries to blow him up. “Hanta, my hero!” Kaminari cries. “Whatever, drama queen,” Sero says, smiling fondly down at the small blonde. “Are you ready to go settle our bet, or do you wanna stay here and get your ass kicked by Katsuki?” “Ooh!” Ashido gasps. “You guys are gonna go fight down at Ground Beta, right? Did you get Aizawa’s permission to spar there yet?” “Shit!” Kaminari exclaims. “I knew we forgot something! C’mon, Hanta, you’re supposed to be the smart one.” “Denki, being smarter than you isn’t really a big accomplishment,” Ashido points out. “Honestly I would be more impressed if there was actually someone with a lower IQ than you,” Bakugou adds. “Just thinking about it is fucking horrifying.” “You guys are awful!” Kaminari wails. Sero awkwardly pats his head in a pathetic attempt at reassurance. “Anyways,” Ashido cuts in before Kaminari has a chance to burst into uncontrollable tears. “The rest of the girls already rented out Ground Beta for the day, and I’m sure they wouldn’t mind if you guys joined.” “Why aren’t you with them?” Kirishima asks as Kaminari and Sero hi-five each other in celebration. “I couldn’t find my hero costume,” the pink girl replies with a carefree smile. “I’m surrounded by fucking idiots,” Bakugou groans. “But we’re your idiots,” Kaminari replies as he blows the explosive boy a kiss. Bakugou leaps out of the way as if the smaller blonde’s air smooch is actually infectious. “Fuck off, dunce face, I don’t want to catch your dumbass germs!” “So mean! A lot of people would pay a lot of money to receive a kiss from a guy as handsome as me!” “Yeah, right,” Bakugou scoffs. “The only person who would willingly kiss your ugly ass is Recovery Girl.” “That’s not true!” Kaminari pouts up at Sero. “You’d totally kiss me, right, Hanta?” Sero can literally feel the warmth spreading across his face as Kaminari pokes his chest, clearly expecting an answer. “Hanta, are you feeling sick? Your face is super red,” Kirishima points out, sounding genuinely concerned. “Maybe you and Denki shouldn’t fight today…” “Lovesick maybe,” Ashido teases. “What’s that supposed to mean?” Kaminari asks and Sero swears he sees a hopeful glint in the smaller boy’s eyes. “For fucks sakes!” Bakugou groans. “Can you assholes get the hell outta here already! Honestly just listening to your stupidity is killing thousands of my brain cells!” “Jeez, Kacchan, I didn’t know it was that time of the month already,” Kaminari retorts. Bakugou cracks his knuckles as he shoots the smaller blonde a murderous glare. “Clearly you don’t value your life, Sparky. ” “Alright, that’s enough!” Ashido shouts, quickly wedging herself between Kaminari and Bakugou. “Save all this energy for the battlefield, okay?” “Fine,” Bakugou spits out. “Hey, dunce face, how ‘bout you spar with me instead, and when I win you’ll be my slave for the rest of your life.” “No way, Bakuhoe, that ass is mine,” Ashido retorts in a comically gruff voice. She grins when she notices the incredulous look Sero is sending her way. “Don’t give me that look, Hanta, I was just saying what you were obviously thinking.” “Sorry, Hanta, but this sweet butt belongs to me, and me alone,” Kaminari says. “I didn’t even say anything!” Sero shouts defensively. “Oh, please!” Ashido slaps Sero on the back so forcefully it makes him keel over. She takes advantage of the tall boy’s slouched form and whispers the next part directly into his ear. “Your crush on Denki is so painfully obvious, and if you don’t make a move soon I —” Sero lightly shoves her away when he notices Kaminari leaning closer in an attempt to hear what the pink girl is saying. “What the hell was that all about?” Bakugou asks. “Don’t worry your spiky little head over it,” Ashido replies cheerfully, ignoring the glare she receives from the explosive blonde. “Now, that’s enough stalling, it’s time to head down to Ground Beta!” “Farewell, idiots,” Bakugou says. Kirishima looks down at his boyfriend, then back to the rest of his friends. “Are you coming with us or not, Eijirou?” Ashido asks. “Katsuki and I already have plans to spar later, so I guess I’ll stay here,” Kirishima replies with his signature wide shark-toothed smile. Ashido nods, then grabs both Sero and Kaminari and begins dragging them towards the doors. “Try not to break the bed when you’re sparring,” Kaminari calls over his shoulder. “Yeah, have fun sparring with your dicks!” Sero adds. Kaminari lets out an adorable giggle as he shoots the tape hero a proud thumbs-up. Bakugou must have exhausted all of his anger earlier because all they get in response is a halfhearted middle finger and a soft “fuck you” just as the door shuts behind the energetic trio. “Alright, losers,” Ashido says with a grin. “Race ya there?” “No way!” Kaminari whines. “I always lose! I’m the only one here who’s quirk doesn’t make them faster.” “Then how about it’s you two against me?” Ashido suggests. “Hanta, you can carry Denki, right?” “No way!” Kaminari squeaks out. “I’m way too heavy!” Ashido rolls her eyes, then gracefully leaps towards the short blonde and easily lifts him up and holds him bridal-style. “C’mon, Denki, you weigh less than a chihuahua!” Ashido cackles as Kaminari flails around in her arms. “C’mon, dude, I promise I won’t drop you,” Sero says. “Do you not trust me?” “What?!” Kaminari gasps. “Of course I trust you, Hanta! It’s just… embarrassing, you know?” “As long as neither of you pop a boner it’ll be fine,” Ashido teases. “Now, let’s go!” “Hey, no fair!” Sero shouts out as the pink girl begins skating away on her trail of acid. She turns around briefly and sticks her tongue out at him mockingly. “What should we do?” Kaminari asks meekly. “This.” Sero quickly secures one arm around the smaller boy’s waist as he aims his other elbow at a nearby lamppost. “Hold on tight.” Sero notices a faint blush on Kaminari’s cheeks, but the electric blonde obediently latches onto him nonetheless. Sero bites his lip at the feeling of their bodies being so close together, but he quickly shakes off his excitement and fires off some tape. Within seconds, they’re flying through the air and right on Ashido’s heels. She looks up at them and grins. “You guys look so cute together!” She shouts. “Shut up, Mina!” Kaminari yells back. “Ouch, man, don’t scream in my ear,” Sero complains. “Sorry, babe.” Kaminari stiffens in his arms once he realizes what he had just called his best friend. “Don’t worry about it, sweetheart,” Sero replies jokingly before Kaminari short-circuits himself out of embarrassment. “Watch out, idiots!” Sero snaps out of his smitten daze once he hears Ashido’s frantic voice. Apparently, he had been so engrossed by Kaminari’s cute blush that he hadn’t realized that he was about to crash right into the entrance of Ground Beta. He feels a hand grab his ankle and drag him and Kaminari downwards before they hit the wall.
“Fuuuuuck,” Kaminari groans as they collapse to the ground. Sero slaps his palms on opposite sides of the smaller boy’s head and shakily holds himself up so he doesn’t crush his friend. It doesn’t take Sero long to internally panic over how close their faces are; if he could lean down just a couple centimetres and claim those cute lips— “Hey, you two should kiss!” Ashido yells. Sero immediately launches himself off of Kaminari, blushing furiously. Kaminari chuckles lightly as he stands up and dusts himself off. He strides over to Sero and extends his hand. “You okay, man?” He asks as Sero gratefully takes his hand and hauls himself up. “You don’t have to take everything she says seriously, y’know. She’s just jealous of our brolationship.” “Your what?!” Ashido guffaws. Her boisterous laughter is contagious, and it only takes a few moments before Kaminari and Sero are keeled over laughing as well. “Alright!” Ashido claps her hands together right before she grabs each boy’s arm and drags them into the training facility. “Time for you guys to finally settle that bet.” “Yeah!” Kaminari cheers with equal enthusiasm. “How are we gonna do this?” “Well,” Ashido taps her chin thoughtfully. “Since we took so long getting over here, how about one round- on top of a building- first person to knock the other off wins?” Sero waits for Kaminari’s inevitable complaints regarding the nature of the battle rules, which even Sero can admit are skewed to his own favour. “Sounds good!” Kaminari replies with his usual bright smile.  What? Sero raises his eyebrows at the smaller boy incredulously. Maybe what Bakugou was saying earlier has some truth behind it… “You’ll probably lose that stupid bet on purpose just so you can get his cock inside you.” Okay, maybe that last part is a bit of a stretch, but Sero can dream damn it! Ashido seems just as surprised as him. “Ah, well… okay then! I’ll referee you guys to make sure there’s no funny business.” Kaminari and Sero nod. The trio remains strangely quiet as they open the doors to one of the buildings and ascend the stairs to the top. Once they’ve reached the roof, the two boys walk to opposite ends and stare each other down. “Ready?” Ashido asks. “Ready!” Both boys respond with equal enthusiasm. “3… 2… 1… Go!” Sero immediately fires off a strand of tape towards Kaminari, hoping to wrap it around him and throw him like he had attempted to do to Todoroki back in their first year at the Sports Festival. Unfortunately, Kaminari seems to predict this attack and easily rolls out of the way and begins sprinting towards him. Sero curses under his breath but remains calm. He shoots out another piece of tape, this time aiming for the smaller boy’s feet in hopes of tripping him up. However, the electric boy manages to leap over the sticky material moments before it latches onto him and resumes his mad dash towards his opponent. Sero grits his teeth as he attempts to take a step back, but to his dismay, he’s already reached the edge of the rooftop. He knows he can’t beat Kaminari in close-range combat, so he’ll have to get a little bit creative. “Giving up already, Hanta?” Kaminari taunts once he’s within striking range. Sero’s eyes widen as the blonde smirks up at him, then proceeds to press a quick kiss to his own electrified fist before slamming it into Sero’s face. Sero wants to internally celebrate over the indirect kiss, but he quickly realizes that now isn’t the time to be getting excited over his… crush. Sero stumbles a bit through the electrocution process, but the wattage output appears to be weaker than usual, which allows Sero enough freedom to move his arm and grab Kaminari’s wrist. The electric blonde gasps as Sero grabs him and flips their positions so he’s the one straddling the ledge of the building. “Sorry, Denki,” Sero says with a wobbly smile as he weakly shoves Kaminari off of the roof. Once Sero regains his senses, he fires off a piece of tape and wraps it around the electric boy’s waist before he can hit the ground. Kaminari looks up at him and gives him a dopey thumbs-up. “Are you excited to be my slave for a day?” Sero asks with a smirk as he reels the smaller boy back up to the rooftop. Kaminari just pouts and flops down on the ground, but Sero notices a faint blush dusting his cheeks.

Sero smirks down at him then shifts his attention to the pink girl who is currently observing them with a knowing grin. “Hey, Mina, you mentioned something about Denki looking cute in your old cheerleader uniform, right?”

----- CHAPTER BREAK -----

“Hanta, you’re seriously gonna jizz in your pants when you see Denki,” Ashido squeals as she flings open the door to Sero’s dorm room.
 
“Shut up, Mina!” Kaminari whines. He’s currently curled up behind Ashido, clearly using the pink girl to shield his current attire.
 
“C’mon, Denki, a bet’s a bet, you gotta show me,” Sero replies with a teasing grin.
 
“Exactly!” Ashido agrees. “Alright, I’ll leave you two lovebirds alone now. Make sure you wash that outfit before you give it back, okay?” She turns around and places a small tube into Kaminari’s hand, then shoves him into Sero’s room. Kaminari looks down at it, blushes faintly, then throws it across the room like it’s a grenade before Sero has a chance to figure out what it is.
 
“Have fun, guys!” The pink girl shouts as she exits, slamming the door shut behind her. Sero’s eyes drift away from the girl’s receding figure and hone in on Kaminari. The blonde boy bites his lip as Sero looks over his attire. The bright pink crop top exposes the majority of his lithe, yet muscular chest; and Sero can see the faint outline of his nipples peeking through the skin-tight material. Furthermore, the skirt is

way

too short on him… If he bent over Sero would probably be able to see

everything

.
 
Sero gulps as he wills his dick to not get hard. “You look good.”
 
Kaminari blushes faintly, but his timid smile quickly shifts into a seductive smirk. “So what’re you gonna make me do next? I’m all yours for the whole day. You can make me do

anything.

”
 
Sero barely resists the urge to ask his friend to take that skimpy cheerleader outfit off. Instead, he stupidly requests, “u-uhhmm… do my homework for me?”
 
“C’mon, man, you know I have no idea how to do that shit.” Kaminari takes a few strides forward and loosely drapes his arms around Sero’s shoulders. “This is your chance to make me do anything. Hell, I’ll even suck your

dick

if you ask me to.”
 
If this is the game that Kaminari wants to play, then Sero won’t back down. “Oh really? Are you sure that isn’t just what

you

want to do?” Sero decides to push the limits of this “joke” by sitting down on his bed and unzipping his jeans. “Go for it, pretty boy.”
 
Kaminari looks genuinely excited by his teasing request. “Really?” He doesn’t even wait for a response. He immediately drops to his knees and reaches towards Sero’s crotch. The tape hero quickly swats his hands away.
 
“Woah, man, have some respect for yourself,” Sero says. “I’m not gonna force you to sleep with me, okay?”
 
Kaminari blinks up at him owlishly. He bites his lip then pouts. “You’re not forcing me to do anything… I… I want to do this… Hanta, I like you. Like, in a romantic way. I have for a long time.”
 
Sero can feel his jaw dropping open. Sure, he’s had his suspicions, but even after coming out as bisexual, Kaminari had always seemed adamant on chasing after girls, not his goofy plain best friend who just so happened to be a guy.
 
“C’mon, dude, say something, please?” Kaminari begs. “I’m already confessing to you on my knees in a goddamn skirt. At least reject me gently—”
 
“I like you too, Denki.”
 
“I know you don’t, you probably don’t even like dudes I— Wait, what’d you just say?”
 
Sero reaches down, picks Kaminari up by his exposed waist and plops him down on his lap. “I

said

that I love you too, Denki.” Sero cups the shorter boy’s cheeks gently and pulls him into a chaste kiss.
 
“Ah, fuck. I. Um. Fuck, Hanta.” Kaminari’s cheeks are bright red and his expression is dopey. For a moment Sero worries that he’s short-circuited himself out of embarrassment. But then the electric blonde is threading his fingers through Sero’s hair and dragging him into a much naughtier kiss.
 
Sero groans as Kaminari’s tongue pokes up against his lips. They literally just confessed to each other and they’re already commencing a full-on makeout session. Sero’s brain can’t seem to keep up with how fast things are moving, but he’s definitely not complaining. When Kaminari starts grinding his barely-covered ass against Sero’s crotch he’s pretty sure his mind has stopped functioning completely. Sero removes his hands from the blonde’s cheeks and slides them down his body until they’re hovering over the back of his skirt. Kaminari lets out a high-pitched moan as those hands grope his ass.
 
“Denki, if you keep moving like that I’m not gonna be able to hold myself back,” Sero warns against Kaminari’s lips. “Unless you want to lose your virginity in a skirt, we have to quit while we’re ahead.”
 
“I don’t care, Hanta,” Kaminari whines. “Fuck me, do whatever you want with me, please! I need you right now.”
 
“Fuck, Denki,” Sero growls. “I’m not interested in a one night stand, so at least tell me you’ll be my boyfriend before I screw you into this goddamn mattress.”
 
“Yes! I’d

love

to be your boyfriend!” Kaminari replies with a bright smile and a quick peck on his cheek.
 
Sero grins back, but his enthusiasm wavers once he comes to a horrible realization. “Shit, I’m not prepared for this at all, I don’t have condoms or lube or anything.”
 
“Oh, actually...” Kaminari trails off as he slides off of Sero’s lap and walks to the other side of the room. He crouches down and picks up the small tube that Ashido had given him earlier. He skips back over to Sero and places it in his hand.
 
Sero studies the object for a brief moment before bursting into laughter. “She gave you lube? Man, Mina really knows everything!”
 
Kaminari chuckles softly but quickly regains his composure. “Alright, so how’re we gonna do this?”
 
“Well, you did offer me a blowjob earlier…” Sero replies with a wide smile. “How ‘bout I prepare you while you suck me off, my little slave?”
 
“Sure thing,

master.

” Kaminari snickers.
 
“Oh fuck, that’s actually kinda hot.”
 
Kaminari rolls his eyes and slaps Sero’s chest playfully. “You’re so kinky, dude.”
 
“You love it,” Sero teases.
 
“You know it, babe. Now let’s sixty-nine before my balls become permanently blue.”
 Sero groans then frantically strips off his own clothes until all that’s left are his boxers. Kaminari shoves him back onto the bed before he has a chance to remove them as well. He mouths at Sero’s dick through the thin material. Sero bites his lip and squeezes his eyes shut at the pleasurable sensation. Once he opens them again, he comes face-to-face with Kaminari’s ass in his face. He flips up his skirt to reveal… lacy pink panties? 
“Wow, man, you really went all out,” Sero comments with a light chuckle.
 
Kaminari groans. “Mina literally

ran

to some lingerie store to buy them. She said the outfit wouldn’t be complete without them.”
 
“I mean, she’s right. You look fucking hot.”
 
“Shut up and start fingering me,” Kaminari whines.
 
Sero snickers at his eagerness, but reaches for the bottle of lube and slathers his fingers with the substance nonetheless. “You sure you want this?” He asks.
 
“Hanta if you don’t stick those fingers in me

now

, I will literally bite your dick off.”
 
“Kinky.”
 
Kaminari sighs fondly, then reaches down and tears Sero’s boxers off. Sero swears his eyes roll back into his head when Kaminari immediately begins deepthroating his cock.
 
“Fuck! Denki, have you done this before?” He manages to gasp out between moans.
 
Kaminari briefly pops his lips off Sero’s dick and smiles broadly. “Nah, I practiced on a popsicle. That’s how I realized I don’t have much of a gag reflex. You’re really big though so I don’t know if I’ll be able to swallow it all.” He swirls his tongue around the head of his cock before engulfing it almost entirely.
 
Sero lets out another pleasured groan before pulling Kaminari’s panties to the side and exposing his asshole. He traces his middle finger around the rim for a few moments before slowly pushing it all the way up to the knuckle. Kaminari lets out a soft moan around his cock, sending another wave of pleasure shooting through his body.
 
“Damn, you’re really tight. Have you ever touched yourself back here?” Sero asks.
 
Kaminari shoots a confident thumbs-up over his shoulder. Sero curses under his breath as thoughts of the electric blonde fingering himself plague his mind. Once Kaminari seems relaxed enough, Sero eases in a second digit and begins scissoring them to stretch open the small hole. Kaminari’s mouth pops off his dick with a whine as Sero’s fingers curl against that special spot inside of him.
 
“Aah—ah! Fuck! Not there— Too much! Ha—Hanta!”
 
Sero smirks deviously as he inserts a third finger and rubs the smaller boy’s prostate relentlessly. “Here?”
 
Kaminari

wails

as Sero drives the trio of digits in deeper. It seems like he’s too caught up in the pleasure he’s receiving to continue the blowjob. Sero doesn’t mind though, watching Kaminari fall apart on his fingers is just as pleasurable.
 
“Hantaaa, please— I can’t—Ahhh! I’m gonna—” Kaminari suddenly clenches impossibly tight around the three fingers and collapses onto Sero with a loud moan.
 
“Shit, Denki, are you alright?” Sero asks as he quickly pulls out his fingers with a wet pop.
 
“Fuuuuck this is so embarrassing,” Kaminari buries his face in Sero’s thigh and groans.
 
“What? What happened?”
 
Kaminari rolls over, sits up, and straddles Sero’s chest. He yanks up his skirt and gestures shamefully to his panties, which are now wet with come. “Prostate orgasm,” He explains bashfully. “I’ve never been able to get one on my own, but your fingers are longer and thicker than mine, so…”
 
“Fuck, you’re so fuckin’ hot,” Sero replies dumbly.
 
“Wearing a skirt and coming without touching my damn dick,” Kaminari sighs. “I seriously feel like a girl right now.”
 
“Yeah, dude, you’re my pretty little princess,” Sero says, barely holding back his laughter. Kaminari isn’t able to; he throws his head back and

cackles

. “That’s, like, the worst thing anybody has ever said to me.”
 
“Shut up, man, it’s called

flirting

.”
 
“I’m not sure about that, my boner vanished the second you opened your mouth,” Kaminari retorts cheekily.
 
“Your dick went soft after I made you come with

just

my fingers. Wait until I get my dick inside you.”
 
Kaminari raises his eyebrows challengingly. “What? You think you’re gonna be able to make me do it again?”
 
“Wanna bet on it?”
 
Kaminari tapped his chin thoughtfully. “What does the winner get?”
 
Sero shrugs. “Bragging rights?”
 
“Jeez, I can’t wait to tell Katsuki:

guess what, Hanta had to touch my dick while he was fucking my ass to make me come!

”
 
Sero scowls and does his best Bakugou impression,

“I’m so fucking proud of you, dunce face!”

Kaminari begins to laugh hysterically. He wipes an imaginary tear from his eye. “Okay, babe, you’ve got yourself a deal. Mainly because I want to hear Katsuki say he’s proud of me.”
 
Sero cracks his knuckles and chuckles. “We both know that’s never going to happen.”
 
“Rude!”
 
Sero shrugs. He reaches for the lube again and pours what’s left in the bottle on his dick. “So, what position do you wanna do this in?”
 
“Doggy style,” Kaminari replies quickly.
 
Sero frowns. “But then I won’t be able to see your face when you come— Actually… I have an idea. Stand up.”
 
Kaminari raises his eyebrows but obeys nonetheless. Sero immediately takes hold of his hand and guides him to the corner of the room, where a full-length mirror is perched. He gently grips Kaminari’s waist and maneuvers him to stand in front of the mirror with his hands gripping the edges. Sero stands behind him and grins as the smaller boy’s face turns bright red in realization.
 
“Seriously, Hanta?” he whines. “This is

so

embarrassing.”
 
“Well, at least this way we can both see the look on your face when you lose.”
 
Kaminari digs his nails into the edges of the mirror and pouts. “You’re awful— and way too cocky. Stick your dick in me already so I can prove you wrong.”
 
Sero rolls his eyes. “You may be the cheer captain, but you’re in no position to be giving me orders.
 
Kaminari snickers. “What? Are we roleplaying now? If I’m the cheer captain, are you the the quarterback of the football team?”
 
“I’m pretty sure that setup would only make sense if we were banging in the locker room.”
 
“I’d be down for that.”
 
“So exhibitionism is fine, but mirror sex isn’t?” Sero scoffs mockingly.
 
“I said it was embarrassing, not that I didn’t like it,” Kaminari replies with a wink at their reflections.
 
Sero smirks back at him as he lifts up the skirt and pulls his panties aside, revealing the electric blonde’s lubed asshole once again. He rubs his cock around the rim for a few moments before asking, “are you ready?”
 
“Yeah, just go slow, please,” Kaminari answers.
 
Sero nods quickly, then carefully begins pushing his dick into that tight, wet heat.
 
“Fuck, you’re so big,” Kaminari whimpers.
 
“Yeah, and you’re super tight,” Sero adds through gritted teeth. “Should I pull out?”
 
“No, keep going, I know it’ll feel good soon.”
 
Sero rubs the small blonde’s sides soothingly as he gently eases the rest of his cock inside of his body, stilling once he’s balls-deep, hips flush with Kaminari’s backside.
 
“Fuuuuuuuck,” Kaminari moans. They’ve barely started and his expression is already thoroughly debauched. Tongue lolled out, eyes partially crossed, and cheeks flushed redder than Kirishima’s hair.
 
Sero isn’t faring much better,  but he still has enough composure to mock Kaminari’s current state of bliss. “Congratulations, you didn’t come from the first thrust.”
 
“Shut uuuup,” Kaminari manages to gasp out. “If you don’t start fucking me, I’m going to—” His idle threat dies in his throat as Sero pulls out halfway, then thrusts back inside harshly.
 
“You were saying?” Sero mocks sweetly. He reaches down and secures his hands around Kaminari’s hips. Now that he has the leverage, he starts really pounding into the little blonde. When he finds the right angle and hits Kaminari’s prostate again, the blonde boy lets out a high-pitched whine, closing his eyes shut tightly from the intense pleasure.
 
“Eyes open, sweetheart,” Sero says. “I want you to watch yourself fall apart on my cock.”
 
Kaminari cracks one eye open to see the taller boy’s gaze trained solely on their reflections. Sero leans forward and bites down gently on his neck, sucking a hickey into the pale flesh.
 
“Too much!” Kaminari gasps as Sero’s hands release his hips and move underneath his cropped top. His eyes roll back into his head as the taller boy begins to pinch and fondle his sensitive nipples. The electric blonde doesn’t know which sensation to focus on; the thick cock destroying his asshole, the wet mouth ruining his neck, or the calloused fingers toying with his chest. He can’t take it anymore, so he reaches his hand downwards to tug his dick to completion, but Sero quickly grabs his wrist and pins it to the mirror.
 
“You come on my cock, or you don’t come at all,” Sero warns coolly.
 
Kaminari shakes his head back and forth frantically, struggling against his boyfriend’s strong grasp. Sero rolls his hips faster, rocking forward in short, sharp thrusts that strike Kaminari’s prostate each and every time. The smaller boy watches helplessly as Sero fucks him from behind while rubbing his nipples and covering his neck with love bites. Kaminari wails, part of him desperate to come, the other part wanting to win the foolish bet he has agreed to.
 
“Look at you,” Sero moans. “You’re so close, I can tell. So tight around my cock.”
 
“

Fuck.

Please, Hanta. Please let me come!”
 
“I’m not stopping you, baby, go ahead.”
 
“I can’t!” Kaminari sobs. His thighs are trembling at this point, and his fingernails are digging into the side of the mirror harshly in a halfhearted attempt at holding back his inevitable orgasm.
 
“I know you can,” Sero says softly. “C’mon, Denki, come on my cock and I’ll fuck you through it.”
 
Kaminari wails as Sero’s cock repeatedly drags across his prostate in a series of frantic, pounding thrusts. “Ahh! A-ahh...AHH!” He cries out as he finally comes, some of it leaking through his panties and splattering across the mirror. He watches in fascinated humiliation as his tongue lolls out of his mouth, drooling slightly when his boyfriend doesn’t slow down his powerful thrusts.
 
“Fuck, Denki, you’re so fuckin’ hot,” Sero groans. He momentarily ceases his thrusting to adjust their position. He reaches downwards and hooks his fingers underneath the little blonde’s knees, then lifts him up off the floor. With this position, they can both see

everything

in their reflections. Kaminari bites his lip as he watches Sero’s cock sink back inside of his body, stretching his tight hole impossibly wide.
 
“Come inside me, please,” Kaminari begs, becoming increasingly overstimulated and eager to be filled up.
 
Sero

growls

, utilizing all of the upper body strength he had built over the course of three years at UA to lift his boyfriend up and down on his dick. He bites his lip when he sees the slutty expression on the little blonde’s face, and the ruined state of his panties and skirt. It only takes a few more thrusts before he’s burying himself as deep as possible in that tight body and having the most intense orgasm of his entire life. He groans as he watches his own come leak out of the blonde’s hole and back onto his cock.
 
“Man, I can’t wait to tell Katsuki that I made you come handsfree,

twice

,” Sero teases. He gently places his boyfriend back down on the ground and pulls his flaccid cock out of the sloppy hole.
 
Kaminari shakily spins around and stands up on his tiptoes to plant a chaste kiss on his boyfriend’s mouth. “You’re the worst.”
 
“You love me.”
 
“Yeah, I do.”

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