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Katsuki sometimes wished he had a more common sense of humor.
If he had, his life would’ve been so much more amusing, and much less teeth-grindingly frustrating.
But then, he doubted certain individuals who shall remain nameless would get anything done if he weren’t on hand to knock some sense into them.
Case in point.
He’d only been off campus for a half hour. Forty minutes tops. He’d run out of the special, chemically neutralizing laundry detergent that was absolutely necessary for keeping his dirty clothes from combusting in the washing machine, and only a few select stores had it in stock. And yes, the shit was expensive as hell. Not as expensive as replacing a washing machine, though.
The only warning had been a text from Kirishima saying that “Craziness happened!” which could mean anything from an earthquake to Kaminari eating twelve jalapeno peppers in two minutes (on a related note, Kaminari was now the laughingstock of the ERs in at least two hospitals).
Alas…
He walked into the Common Room and was greeted by a strange sight (you’d think he’d be acclimated by now. You’d be wrong).
A handful of classmates were looking up at the ceiling, cheering and laughing. Kaminari, Sero, Deku, Uraraka, and… some other girl that was kinda’-sorta’ familiar.
Automatically he followed their gazes.
“What th… Shitty Hair?”
The resident redhead was stuck to the ceiling like a helium balloon, a crazy grin stretched across his face and eyes alight with excitement. “Hey Bakugo! Check it out!” Something was… off about his face, but Katsuki couldn’t tell from here.
“Check what out? Cheeks using her quirk on ya’?”
“Nope!” He snickered like a little kid with a secret. “It’s me using her quirk on myself!”
“ Heh? ”
“It’s true!” Uraraka said. “A bunch of us tried to stop a fight between two first-years and… got caught in the crossfire.”
Katsuki gaped at her.
The points of sharp, shark-like teeth peeked out as she spoke and smiled.
“What the fuck? Your teeth!”
“Yeah.” She raised an arm and flexed, hardening the skin into jagged ridges. “One of the first-years had a quirk that switched other people’s quirks. That’s why Kirishima’s on the ceiling.”
“I got Jirou’s!” The strange girl said in a familiar voice, and Katsuki finally noticed her mop of brown curls and gold irises.
“Ashido?!”
“Couldn’t recognise me, could you?” She grinned, tugging on a swinging earlobe jack. “Even Kaminari and Sero didn’t know who I was!”
“It’s true!” Kaminari declared. “Man, it’s so trippy! Feel kind of sorry for Jirou, though.”
“Why?”
“You see that?” Sero pointed to a hole burned in the carpet in the vague shape of a foot. “That’s just one of many.”
“Damn.” He uttered.
“This is awesome!” Kirishima crowed. And now Katsuki knew what was different: his teeth were abnormally normal.
“You’re going to get sick!” Uraraka warned him.
“Get down before you break something!” Katsuki snapped. He swatted a muttering Deku on the arm. “Oi! Quit nerding out!”
“I can’t help it!” His eyes were wide as dinner plates as the gears in his brain were turning at the speed of light. “How often does something like this happen?! I have so many questions!”
“I’ve got one.” Kirishima called. “Uraraka, how do I get down without falling and breaking something, or someone?”
“Crawl down the wall like a spider.” she suggested.
Everyone watched as Kirishima turned over and put his hands and feet on the ceiling, crawling along like a large, spiky lizard until he reached the closest wall and started moving down. Deku ran over and grabbed his hands, pulling him over to the couches.
Satisfied he was in the right place, Kirishima put his fingertips together. “Release!” he dropped and bounced on the cushions, laughing.
“Perfect!” The quirk’s original owner clapped her hands. “It took me weeks of practice to get my first landing that good!”
“But you were only, like, four.” Kirishima pointed out as he stood, still grinning.
“Still, good job!”
Katsuki was stuck on the detail of Kirishima’s teeth.
Shark teeth looked funny in Uraraka’s round, wide-eyed, candy-sweet face. Normal teeth looked disturbing in Kirishima’s.
“That’s ain’t right.” He grunted.
“You say something?” Ashido asked.
He flushed. “Nothing”
“Whoa.” Kirishima’s smile faded as he put a hand on his belly. “Yeah, think I overdid it.”
“I warned you.” Uraraka shook a finger.
“You’re a disaster.” Kaminari chuckled at Kirishima.
“Look who's talking?”
“That’s why we get along so well!”
“Ugh.” Katsuki trudged toward the elevators. “I’m not sticking around to watch the fucking trainwreck.”
“I’ll float a snack up to you.” Kirishima joked.
“No. Fucking.Thanks.”
__________________________________________
He’d been home for a total of two hours when he heard an enthusiastic pounding on his door.
“Bakubro! It’s your floatin’ buddy!”
Katsuki rolled his eyes. “Just get in here. Since when did you need to knock?”
Kirishima trotted into the dorm, closing the door behind him. “It’s just a nice thing to do.”
“Tell that to the other bozos you hang out with.”
“But they’re our bozos!”
“Fuck no. You have sole custody.”
The redhead sat next to him, pressing into his side. “Should I? Me being the irresponsible moron that I am?” He grinned impishly.
“I hate it when you turn my words against me.” Katsuki said, without any heat.
The other boy grasped his hand, slotting their fingers together.
Katsuki’s traitorous heart started speeding, like it always did when…
Suddenly he became weightless.
“Oi! Eijiro! Pinky!”
“Shit! Sorry Babe!”
He let go of Katsuki’s hand to release the quirk. Thankfully the explosive teen had the reflexes to land on his feet. “Be careful with that! You’re gonna’ send someone into orbit!”
“Sorry!” Kirishima said again. “Not used to it.”
“You need to always be thinking about it.” Katsuki reminded him, poking his forehead. “What else have you floated that you didn’t mean to?”
The redhead winced. “... Kaminari. But in my defense, he was the one who initiated the high-five!”
Katsuki couldn’t hold in the wheeze of laughter at the thought of Sparky drifting skyward, limbs flailing. “How the hell do you people survive without me?”
“You’re the one who said I have sole custody.”
Katsuki shook his head, plopping himself back down beside his boyfriend.
“You guys, I fucking swear…”
Kirishima took his hand again, being careful to raise his pinky. “Could be worse.” He chuckled. “Can you imagine if someone like poor Iida or Midoriya switched quirks with Kaminari?”
With Deku’s nervous disposition, he’d probably short-circuit every five minutes, while Kaminari would destroy the whole building by snapping his fingers “To see what happens.”
“That is fucking scary.”
“Or, if Mineta switched quirks with Yaomomo? The little creep would probably make himself a lock-picking kit!”
“But then Ponytail would probably just use her sticky balls to keep him stuck somewhere.” Katsuki pointed out.
“Oh yeah.” Kirishima laughed. “Foiled by his own quirk being used by someone else! How’s that for irony?”
Katsuki allowed himself a smirk.
“Hey, Kats?”
“Yeah?”
Kirishima had a playful, yet kind of bashful look on his face. “While I’ve got this quirk, can we try something?”
All kinds of possibilities went through Katsuki’s brain at his words. Most of them were definitely not intended for younger audiences. Damn, Sero and Kaminari were bad influences.
“What…” His voice came out in a croak. He cleared his throat. “What did you have in mind?”
“Nothing above a PG rating.” Kirishima’s smirk turned knowing. The bastard could read him like a book.
“Just fucking out with it!” He spouted, blushing.
“The Spiderman Kiss!”
Katsuki raised an eyebrow. “Really?”
“Yeah!” Kirishima nodded enthusiastically. “I know it sounds cheesy, but It’s also kinda’ romantic and, well, hot!”
Not too surprising. He’d always known his boyfriend was a complete dork.
“Fine. Why the fuck not.”
“Great! Do you wanna’ be the one upside-down, or should I?”
“It was your idea, you do it.”
Kirishima quickly rose to his knees. “I’m gonna’ need your help getting me into position.”
Katsuki shrugged, as the other boy touched his blunt fingertips together, creating a pink spark, and started rising, his shirt fluttering like his was underwater.
He grabbed Kirishima’s hands and pulled him over, letting him rotate himself so he was upside-down, his face right in front of Katsuki’s.
The excited, smitten look on his face made Katsuki feel all gooey and gummed up inside.
“Dork.” He muttered fondly, hands on either side of Kirishima’s face.
“Heh, you look pretty cute from this angle, Katsuki.”
“Don’t push it, Ei.”
“Hey, you think Uraraka ever secretly tried this with Mid…?”
Katsuki immediately clapped a hand over his mouth, cutting him off. “Never, ever, mention that person while we’re making out, or about to make out. Got it?”
“Sorry, my bad.”
“Tch.” Kirishima was lucky Katsuki found him so cute.
The redhead reached forward to cup the back of the blond’s hand, fingers threading through his hair, before urging him forward until their lips met.
It was a novelty, to be sure. Kind of awkward at first, Kirishima’s lower lip against Katsuki’s upper, and it took a little figuring out before they set a lazy kind of rhythm.
Kind of nice.
He sucked Kirishima’s lower lip, pulled just a little with his teeth, getting a happy hum in response.
The push and pull of their lips was complemented by the large hands gently running through Katsuki’s hair, lightly scratching his scalp. Katsuki would be purring if he had the ability, it always felt really fucking nice.
His tongue slipped in, licking his way in, running over Kirishima’s tongue and the points of…
… He grunted in frustration, pulling away. “Damn teeth.”
“Huh? Why’d you stop?’
Katsuki rubbed his thumb over Kirishima’s lower lip. “Can’t get used to you with normal, boring-ass teeth. They don’t fucking suit you.”
His boyfriend chuckled. “Oh I see. Nice to know you’ve only been dating ‘cause of some crazy dental kink.”
Katsuki’s grip on him tightened and he gave him a small shake. “Eijiro, don’t even joke about that!” he all but yelled. “You think it’s funny that I’d be that much of an asshole?!”
“Whoa, whoa, easy.” Kirishima cradled his face with a gentle but determined smile. “I’m sorry, I said that. You know I don’t think that kind of shit about you.”
“Maybe not consciously..”
“Not at all.” He said firmly. “I was just teasing, I swear.”
Katsuki took a deep breath, suddenly feeling embarrassed for his outburst.
“Okay, I’m starting to feel a little funky.” Kirishima admitted, “And I think I should be rightside-up for this kinda’ talk.” he put his fingers together. “Release.”
“Wait..!” Katsuki barely managed to catch him as he fell to the floor, which broke his fall but caused the other boy to fall forward and land right on top of him.
“Idiot! You can’t just land five feet right on your head! You can’t harden, remember?”
“Sorry!” The two disentangled themselves and sat up. “Ow! Guess I’m more used to banging around than I thought.”
“You gotta’ keep thinking about it!” Katsuki reminded him.
“I’ll remember that. But anyway…”
“Look, it’s fine. Okay? I just misunderstood shit and whatever.”
Kirishima frowned at him. “This seems to be a sensitive subject with you.”
“What?”
“Katsuki, I never question your feelings, okay? I know you really like me as much as I like you.” He took Katsuki’s face in his hands. “And I know it’s not just because of my looks, or my quirk, or my skills. You like Kirishima Eijiro. That’s all there is to it.”
Katsuki sighed, letting the tension seep out of him.
“You’re wrong.”
“What?”
“I…” His vice drooped to a near-whisper. “I fucking love you.”
Kirishima’s face lit up like a million watt bulb. “Shit, really? I mean, I knew that, but… okay, wow, wasn’t expecting you to just say that.”
“Well I do!” Katsuki barked, hoping it would hide the blush no doubt painting his face rosy.
“I love you too!”
“Fan-fucking-tastic!”
Kirishima tackled him into a fierce bear hug, laughing at the top of his lungs as the two started to float again.
“Eijiro…!”
“Oops!”
“Aw just fuck it.” Katsuki hugged him back.
He had the incredibly corny thought that he would’ve felt weightless anyway, quirk or no quirk.
“How did we get from talking about my teeth to a love confession?’ Kirishima laughed once they reached the ceiling.
“Don’t know. Don’t care. C’mere.” Katsuki pulled him into another intense kiss, ignoring the normal teeth and focusing on everything else that said this was Eijiro.
Then the door opened. “Hey KaaAAOH MY GOD!”
The two boys yanked themselves away, making Kirishima spin in mid air and bump his head. “Ow!”
“GODDAMN IT DEKU!” Katsuki yelled down at the boy beneath them, blushing as hard as they were. “THE ONE TIME YOU DON’T KNOCK FIRST!”
“I… I… I’m sorry! I didn’t… You weren’t....”
Kirishima started laughing.
“C-congratulations?” Deku managed to squeak out.
“That’s it! I’m really gonna’ kill you this time!” Katsuki gave a few tiny explosions to rocket him in his childhood friend’s direction.
“Wait... guys, don’t leave me here!” Kirishima called after them. “Katsuki! Feeling crummy in the tummy!”
____________________________________________________________
After Katsuki chased Deku like a human missile until Kirishima finally deactivated the antigravity quirk (but not before puking all over Katsuki’s floor), it was only a matter of time before the rest of the class pieced things together from the words being shouted between the two childhood friends.
Apparently, it was the worst-kept secret in Class A. And they already had everyone’s blessing. And apparently several bets were won and lost with Katsuki and Kirishima becoming a couple (Kaminari and Mineta kept bickering over who bet it would happen before Katsuki’s eighteenth birthday).
So, with everyone proclaiming their excitement, Katsuki’s dorm was cleaned while his no-longer-secret boyfriend recovered in the Common Room with a mug of ginger tea. After that The Class President scolded them both for their reckless use of a borrowed quirk, and then scolded Katsuki even more for his flying-after-deku stunt.
Katsuki responded by kissing Kirishima right then and there, effectively turning Iida into a flustered, stammering mess, as usually happened when he witnessed a PDA (Deku wasn’t the only blushing virgin in the class).
That night, the couple retired to Eijiro’s room, since Katsuki’s still smelled a bit unpleasant, and decompressed from the day’s insanity by watching some random action movie on the redhead’s laptop, holding hands.
In the middle of the film, Katsuki noticed something.
“You’re touching me with all five fingers.”
“Hm? Oh shit, sorry!” His pinky shot out.
“We’re not floating, dumbass.” Katsuki rolled his eyes fondly.
“Oh. Oh !” Kirishima let go and examined his hand. His smile revealed sharp, arrowhead teeth. “Hey, the pad-thingies are gone.”
“Your teeth are back.”
Kirishima ran his tongue over them, looking surprised. “I didn’t even notice!”
On a hunch, Katsuki looked at his boyfriend’s phone, which had been left on silent.
“You got a text from Cheeks. She’s back to normal too.”
“Good!” Kirishima grabbed Katsuki’s hand again, squeezing it firmly. “That was kinda’ fun and all, but it’s good to be back to what I’m used to.”
“Hn.” Katsuki pressed into his side.
“Listen, do you wanna’ stay the night here, while your room still smells like upchuck?”
“Sure.”
Damn, only a few hours and he’d missed that wide, shark-toothed smile.
The teeth weren't’ a deal breaker. Like Kirishima said, it was just nice for things to get back to the way they were.
“Kats?”
“Yeah?”
“...Love you.”
“Dork.”
Not that some changes weren’t nice.