Disclaimer: My Hero Academia is not mine, nor do I own the characters.
Warnings: Cursing, OOC-ness, possible spoilers, a bt of shonen-ai, etc.
It had happened out of the blue. A villain had made her way through U.A.'s security and was running amuck. Being the heroes-in-training they were, Izuku and Katsuki went in right away to deal with the villain. Already All Might and Eraser Head had caught the villain into a corner.
"Stay back kids, you shouldn't be here." Eraser Head growled when the boys had made it to his side. The villain let out a laugh, a hand coming up to cover her mouth.
"This is just perfect." She purred.
"That is enough." All Might put his hands to his hips and stood tall, "Stand down and just turn yourself in." The villain pouted.
"Fine, fine." She whined, which caught everyone off guard, "But not before I do this!" She then jumped right towards Izuku and Katsuki. Her hands grabbed their heads and she caused them to butt heads. She also did the same to All Might and Eraser Head before she was grabbed by the arm. From there the villain did give in. She had a smile plastered on her face as she was taken away.
"That was weird." Izuku muttered as he rubbed his sore forehead.
"Shut the fuck up Deku." Katsuki hissed as he did the same action.
"I guess we should end the school day early…" Eraser Head muttered.
"Agreed, I shall speak with the principal." All Might nodded his head. With that the school was released as easy as it was stated. By the time Izuku got home, he was all kinds of tired. Not only did his head hurt from the fight, but his mind was on overdrive as he tried to think of what the villain's plan was and what her Quirk could have been. He was a zombie while he ate, and just wanted to go straight to bed afterwards.
"Oh dear, I hope you're not getting sick Izuku…" Mrs. Midoriya whimpered as she watched her son put away his dishes.
"I don't know mom…I wanna go to bed though." At that Izuku had let out a big yawn and he rubbed at his eyes.
"Okay, just let me know if you need anything." Mrs Midoriya squeaked. Izuku nodded to his mom before heading to his bedroom. He changed into his pjs and just told himself that he'd shower in the morning. But just before he was going to pull up his covers, he heard the buzzing of his phone. Grabbing the cell, Izuku checked what was up.
Heard that you were in the fight. Are you alright? - Shouto
Izuku did smile at the text. He sometimes forgot at how much of a worry-wort Shouto could be.
I'm fine Shouto. I'm really tired, but fine. All that happened was the villain made Kacchan and I headbutt one another. - Self
It didn't take very long for Shouto to reply.
If you believe that everything is fine I will trust your judgement. See you tomorrow. - Shouto
Izuku smiled as he sent back an agreement and put his phone aside for the night. With his happy thoughts, Izuku went to sleep, unaware that with that the villains Quirk finally came into effect.
When morning came around Izuku knew immediately that something was very, very wrong. He sat up with a jolt and looked all around; the room he was in was completely unfamiliar to him. Though all it took for things to click into place was for Izuku to look down at his hands. First of all, what he saw where not his own hands, but he did know exactly whose they were. With a small whimper Izuku's face began to pale; well it wasn't his face but Izuku could tell it was going pale. He was in Katsuki Bakugou's body. What was he going to do?!
On the other hand, Katsuki was just as freaked the fuck out. He was currently in Izuku's body and very pissed at the world. He decided to glare at Izuku's phone as he tried to think of something to do.
"Izuku, is everything alright? You're going to late for school if you don't get ready soon." Mrs. Midoriya's worried voice came from outside the room from the other side of the door.
"Oh shit, how the fuck am I supposed to act like fucking Deku?" Katsuki grumbled under his breath and swung his legs (well technically they were Izuku's) over the side of the bed. As he stood Katsuki couldn't help but make a comment about Izuku's shortness and went on a search for Izuku's school uniform. As much as Katsuki hated this situation, he knew that the only he was seeing his own body would be at school; most likely with Izuku inside it.
"Deku better not be fucking things up on his end." Katsuki growled under his breath as he peeked out the doorway. In the hall he spotted Mrs. Midoriya. Now how was he getting past her without causing suspicion?
"Were you up late talking to Todoroki again Izuku? I thought I told you to pay more attention to the clock. Well…go on and get to school dear." Mrs. Midoriya gave a small sigh and stepped out of the way.
"Uh…" Katsuki didn't know what to say, and what was this about the Half-and-Half? In the end Katsuki had just given Mrs. Midoriya a wave and that had seemed to work. From there he ran off to U.A. On the way there, Izuku's phone started buzzing. Having felt go off enough times Katsuki decided to answer it. And note it was way too easy to figure out Izuku's password.
Kacchan! - Unknown Number
We switched bodies! This is so weird! - Unknown Number
I guess I'll see you at school? - Unknown Number
Kacchan? - Unknown Number
Katsuki snorted as he read all the messages before he decided to finally reply back.
We are going straight to fucking Recovery Girl you here me Deku? And you better not be screwing things over for me! - Self
It took only seconds for Izuku to reply with a 'Understood' and Katsuki shoved the cell phone back into his pocket. Once at the school Katsuki was surprised at the lack of students that were around. But he just brushed it aside, the less people the less they knew of him being stuck in Izuku's body.
"Izuku!" Katsuki froze when he heard Shouto call out to him. "Feeling better from last night?" Shouto quickly made his way to Katsuki's side. Katsuki could only stare at Shouto in shock. Just what was going on? And for how long were Deku and the Half-and-Half on a first name basis?
"S-Shouto?" Katsuki uncharacteristically stuttered out.
"You don't sound very well. Maybe you should just head back home? I'm sure your mother would understand." Shouto brought a hand up to cup Katsuki's (but really Izuku's) face. Katsuki was dumbfounded. He couldn't move. He wanted to lash out and curse to high heaven, but deep down he still didn't want to blow his cover. Just as Shouto started to lean in, perhaps for a kiss, Katsuki felt the urge to finally push him off. His hand twitched with a power he knew was not his own and he began to worry once again.
"Don't!" A familiar voice shouted down the hall. Shouto paused and looked up with a glare. The Half-and-Half even moved so that he stood protectively over Katsuki.
"What do you want Bakugou?" Shouto growled and wrapped a hand around Katsuki's waist.
"Stop, don't you do anything to him!" Izuku (in Katsuki's body of course) shouted and shook his head. It was evident that Shouto was confused with how, in his eyes Katsuki, was acting and he slowly calmed down.
"Why? You've never been nice to him before and who are you tell me what to do with my boyfriend?" Shouto huffed out while still staring at Izuku. Now Katsuki was done, he did not want to deal with this weird ass situation any longer.
"Fuck! Get off me Halfy and Deku what the fuck?" Katsuki lashed out and pushed Shouto away from him. Shouto was obviously shocked at the outburst.
"K-Kacchan watch your language!" Izuku whined, which only seemed to make Katsuki angrier.
"You better have not made me seem like a pussy in front of my parents." Katsuki growled.
"What is going on here?" Shouto jumped back into the conversation. Izuku bowed his head and pouted (which looked totally weird on Katsuki's face).
"Oh Shouto…somehow Kacchan and I switched bodies this morning. We were supposed to be going to see Recovery Girl right now." Izuku whimpered out.
"Cut that out!" Katsuki fought back the urge to hit Izuku. Now it came time for Shouto to blush.
"I'm sorry." Shouto murmured and started to scratch at his cheek.
"Bakugou, Midoriya!" Everyone's attention was brought to see Mr. Aizawa.
"I guess we'll talk later…Good luck?" Shouto decided it was time for him to go off to class. This left Katsuki, Izuku, and Mr. Aizawa alone in the hallway.
"To Recovery Girl with you boys." Mr. Aizawa sighed.
"Um…" Izuku wanted to question his teacher. He clearly remembered that yesterday not only had he and Katsuki smash heads, but Mr. Aizawa and All Might had as well. And well if this was the result of a Quirk…then they could be switched as well.
"Stop right there my boy. That's definitely Midoriya in there." Mr. Aizawa shook his head and put a hand on Izuku's (Katsuki's) shoulder.
"You got switched up too?" Katsuki snorted slightly.
"Bakugou now is not the time." All Might (though it was Mr. Aizawa's body) waved a hand in gesture to be followed. The boys followed their teacher without a second thought. Once in the Nurse's Office, Recovery Girl went right to work on checking everyone out. Though during his check-up Katsuki couldn't help but ask where All Might was.
"Shouldn't Mr. Aizawa be here in All Might's body?" Katsuki huffed.
"He's already been checked and in the next room over. Think nothing of it." Recovery Girl hummed as she continued to work.
"So uh, you got any idea if this is Quirk related or not?" Izuku was sitting on a bed and kicking his legs back and forth.
"It is, and from the looks of things it should wear off in a matter of hours." Recovery Girl patted Katsuki's hand and smiled.
"Hours?" Katsuki growled and clenched his hands into fists.
"It'll be fine Kacchan…" Izuku shook his head and turned to Recovery Girl, "Should we just stay here then?"
"It'd be best. I say you just sleep things off okay dears?" Recovery Girl gave a nod and stepped away from Katsuki.
"Fine." Katsuki rolled his eyes and crossed his arms over his chest.
"Keep a good eye on them ma'am." All Might gave Recovery Girl a wave before going off. Izuku figured he was going to go be Mr. Aizawa. With all that Recovery Girl went to her desk to deal with paperwork as Izuku and Katsuki sat in beds that were right next to one another. In a surprising moment, Katsuki was the one to break the room's silence.
"For how long have you and Half-and-Half dating?" Katsuki slightly grumbled. Izuku's face warmed and he turned his head away. Katsuki had made sure to snap a nasty comment his way while Izuku took his time to reply.
"It was a few weeks after the Sports Festival okay?" Izuku finally spoke out.
"Seriously? I can't believe I never fucking noticed." Katsuki brought a hand up to rub at his chin. Izuku gave a little laugh, which was totally weird since it technically was coming from Katsuki, and smiled over to Katsuki.
"I guess you don't know me as well as you thought. It wouldn't be the first time." Izuku pointed out.
"Shut up Deku!" Katsuki growled and raised his hands up for a fight.
"Careful! You don't want to go activating my Quirk." Izuku squeaked.
"Tsk…" Katsuki knew that, he didn't want to break any bones, even if they were Izuku's, "Speaking of Quirks, how the fuck have you not been blowing shit up?"
"Oh, well. I've just kinda been making sure not to get my…your hands all sweaty. I've done a few small bursts on accident, but no harm no foul." Izuku replied. Katsuki huffed, of course Izuku understood how his Quirk worked. Damned nerd was always sticking his nose into everyone's Quirks and business.
"I just want out of your stupid body already." Katsuki gave in to a whine.
"Agreed! I can't believe Shouto almost kissed you!" Izuku huffed out.
"Don't talk about that! Boyfriend or not I was going to punch the daylights out of him!" Katsuki growled.
"Kacchan!" Izuku whined. For the next handful of minutes the boys made small talk and arguments. It was Recovery Girl that finally told them to hush up and actual try to take naps. Izuku, being the goodie-goodie he was, was quick to listen to the medical hero and made himself comfortable in the bed. Meanwhile it took some piss and vinegar to get Katsuki to attempt a nap.
"If we aren't back in our own bodies when I wake up, I gonna kill you." Katsuki grumbled out loud before trying to get some shut eye. Luckily the little spitfire got his wish. He left the Nurse's Office in his own body, leaving Izuku behind.
"That was weird, but it could have been worse." Izuku chuckled to himself as he helped Recovery Girl tidy up her office.
"Take care." Recovery Girl hummed when Izuku left. By this time school was out, so Izuku was heading straight home. Along the way he pulls out his phone and sends a text to Shouto.
How was today?
P.S. I'm back to normal! Sorry about this morning! - Self
It hadn't taken very long for Shouto to reply.
Lady Midnight took over Homeroom in place of Mr. Aizawa and Snipe had taken over for All Might. I'll be sure to send you today's notes later tonight. As for the other thing, you owe me. - Shouto
I figured. You're the best Sho! Love you! - Self
Love you too. - Shouto
Izuku nervously laughed as he slipped his phone into his pocket. The world of Quirks was certainly a weird one. And Izuku was sure this wasn't going to be last time that something like this was going to happen again.