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Nothing I Haven’t Seen Before

Summary:

After a rough night of arguing and fighting Midoriya and Bakugo find themselves in each other’s bodies with no real reason as to why. The pair decide it’s in their best interest to keep their problem a secret to not garner them even more trouble than they’ve already got themselves into the night prior. Bakugo struggles with his temper in Deku’s body, and Midoriya is just as bad as keeping his mouth shut in Kacchan’s. Aizawa doesn’t know it yet, but he needs a shot.

Chapter 1: •Prologue•

Chapter Text

Bakugo wakes up feeling like he just woke up from a three hour nap after a New Years Party, drank too much, mixed alcohols, and is late for a job that he doesn’t go to. Needless to say he feels like shit. Maybe it’s the hangover like feeling, or the way his mind feels like he’s somehow underwater, but he swears he isn’t in his room.

No, wait. He’s not in his room. He’s sure of it.

He doesn’t recall having this many All Might posters. Fuck, he swears he had just the one. No. He’s certain he has just the one.

The bed under him has navy blue sheets. Bakugo hates navy blue. These aren’t his sheets. This isn’t his bed. This isn’t his room.

From what little his brain is allowing him to remember, this room looks a lot like Deku’s room. It has to be. He’s sure of it.

Realistically, waking up feeling like he had just arisen from a coma, in Deku’s room no less, isn’t actually that far of a stretch... For all Bakugo knows, he really could have gotten fucked up- from God knows what- and Deku felt like it was his sole duty to take the blond back to his room for some TLC. But then, where is the nerd anyways? If he’s not in the bed Bakugo’s in... and he’s sure the bathroom’s unoccupied... what’s going on?

Bakugo forgoes his morning pee- one, because strangely he doesn’t have to; and two, he needs to know what is going on- and heads down to the common room.

He could go up to his room and see if Deku’s sleeping there, but that really doesn’t seem logical when Deku could have just brought him there in the first place. Bakugo isn’t light pre-say, but Deku has lifted a whole fridge before so...

Bakugo gallops down the stairs rather ungracefully to head to the kitchen. It’s probably kinda gross he avoided brushing his teeth before grabbing a glass of OJ in the morning, but like, tooth decay isn’t really a thought at this moment.

“Good morning!” Uraraka comes around the corner with a smile.

It’s the weekend and she looks dressed and ready to go hang out with Tsu, whom she’s pulling down the hall with her.

Bakugo is slightly confused, but doesn’t really dignify it with a full response. He nods while simultaneously chugging his juice.

“Do you need anything while we’re out?” Tsu tilts her head to the side rather endearingly.

Bakugo grimaces over his glass. He didn’t hate the frog girl by any means, in fact, she was probably the least annoying girl in their class. But in saying that, they weren’t friendly. Maybe she’s just weirdly nice this morning. It’s been a weird fucking day already. He shakes his head.

The two girls barely pay him anymore attention as he turns around to wash his juice glass in the sink behind him. The pair greet another person that ends up making their way into the kitchen before they leave to go out like they said.

The blond turns around and is met face-to-chest with a way too smiley Iida.

“Ah! Good morning, how’d you sleep?” The taller beams down at him.

Bakugo mentally scratches his head at the greeting. That has been not one, not two, but three people who’ve uncharacteristically greeted him in the few minutes he’s been awake. It’s not unwelcome but most definitely confusing.

“Uhh, fine?” Bakugo quietly jolts at his own voice. Morning voice is on it’s own energy this day he guesses.

“Mmm, good. I heard some of our classmates were rather loud last night. Of course Kaminari rilled up Bakugo into a yelling fit. I hope that didn’t keep you up.”

Iida most certainly was looking down at him for some form of verbal confirmation on what he just said but Bakugo couldn’t get past the fact he referred to him in third person.

Then it hit him.

Bakugo’s overly scarred palm splayed out onto Iida’s firm chest.

“Midoriya?” Iida confirmed his dread.

Bakugo, or rather- the body he was possessing-, turned back to face the sink’s faucet. Blacks and mossy greens swirled in his reflection of the stainless steel faucet of the sink. He felt himself grip onto the shirt Iida was wearing. He couldn’t help himself but use his hold on said shirt to balance himself over the sink drain and vomit up an orange juice and bile-like liquid into the sink.

“Midoriya!” Iida grasped his elbow for support and rubbed gentle circles into Bakugo’s back as he went in for a second round into the sink.

The after glow of throwing up had its own weird way of grounding a person into reality. Suddenly there were a few extra bodies in the kitchen and one of them happened to be his own.

Bakugo reached back over to his discarded juice glass he had placed onto the drying rack after he cleaned it. He ran the water over the disgusting substance he spit up into the sink until it was running down the drain and filled his cup back up with lukewarm water. He swished it around for half a second to spit that back out into the sink and left the remainder of his glass there as well.

He turned around to see his own body staring him down in what Bakugo could only assume was the same expression he was wearing himself. Iida and the few others gave the pair worried looks in utter silence, not really knowing what unspoken language the two were speaking to each other.

Bakugo barely blinked and his hand was gripping his own- Deku’s own- hand.

“Bakugo!” Iida shouted at the blond.

The two didn’t pay him any mind while they continued to look into their own eyes because what the fuck was going on.

Bakugo was the first to speak. “What... happened?”

“I-I-I don’t even know... I just woke up and... now I’m here.” Bakugo’s own voice rattled back to him, which made him outwardly grimace.

“This is strange.” Bakugo couldn’t help himself from saying.

Deku- rather, the Bakugo in front of him that Deku was controlling- couldn’t hold back an awkward chuckle. “Yeah.”

“Am I... missing something?” Jiro, who had been witnessing the whole ordeal via the doorframe, asked out loud.

Bakugo’s wrist was tugged on. “We have to go.” Deku excused the both of them and dashed out the kitchen with the no-longer-blond in tow.

Recovery Girl’s office was in the UA school building. Not the dorms. Bakugo and Deku probably looked insane to knowledgeable onlookers, dashing across the school field hand-in-hand to the other side of the field into the nearby building.

They couldn’t get there fast enough. They were sweaty and panting by the time they were both ripping open the door. Bakugo may have used part of Deku’s quirk to physically rip the sliding door off its hinges, but really, who could blame him.

“Oh, good morning you two. It’s awfully early for you to be sent to my office. I don’t even have my coat on!” Recovery Girl jokes as she tugged her white lab coat over her blouse. “That must be a new record!”

“Ma’am! We have an issue!” Bakugo’s overly consumed drawl echoed through the room.

“We’ve fucking switched bodies!” Deku’s whinier tone screamed out by Bakugo’s command.

“Oh dear...”

~•*•~

Recovery Girl pulls away, fixing the stethoscope back around her neck. “Nothing seems to be the issue here.”

“Nothing seems to be an issue?!” Midoriya’s voices can be pretty harsh sounding when Bakugo applies enough pressure behind his words. Who knew the dork had it in him.

“Right, well... you’re healthy is what I mean. Don’t get snippy at me young man.”

Bakugo turns his nose up at her slightly, even though he has no real reason to be mad at her. It isn’t her fault but she’s doing a piss poor job of making either of them remotely calm. He can see how stiff Deku looks in his body, Deku’s having just as awful as a time as he is.

“I’ll run some tests with your samples I took. I’ll get in touch with some other local nurses and police to see if any quirks could have been involved last night while you boys were out. Other than that... I’m afraid that’s all I can do for you at this very moment.”

Bakugo cringes. “Are we supposed to just.. go back to class like this?”

“I can inform Mr. Aizawa of you issue and-“

“No! No!” Bakugo’s voice yelps out, interring the Hero. Deku’s annoying hand mannerisms have carried over into Bakugo’s body the boy notices. “We’ll be sure to let the others know ourselves.”

He stands with a bow, gesturing Bakugo to do the same.

“Um... let us know if we need to do anymore tests! We should be on our way though... thank you so much!” Deku has commanded Bakugo’s body to practically push said boy out into the hallways.

“Jeez fuckface! No need to sh-“

Bakugo’s new, smaller frame is enveloped in a shadow from his former body. Deku is looking slightly down at his own body in an expression of disgust and worry.

“What?” Bakugo hisses out.

Deku cards fingers through his now ashen blond hair with a sigh. “I don’t think we should tell Aizawa about this.”

Bakugo smirks at that. “Wow, for once you’re not doing what the doctor recommends, huh? Why’s that?”

“I just.” Another sigh. “After last night I-...” he trails off for Bakugo to pick up the pieces.

Last night. Bakugo remembers.

The two of them got into another fight. This time it was pretty bad because Kirishima and Todoroki got involved, it was pretty bad. Todoroki made a snark comment about Bakugo being moody and rude and Kirishima seemed to have the last straw. Bakugo knowingly took the fall and ended up getting attacked by Icy Hot, which ended up getting Kirishima even madder. Deku weaseled in like a ‘true Hero’. Words were said, profanities were thrown. Next thing Bakugo knows him and Deku are legitimately at each other’s throats. Aizawa, of all teachers, found them panting and bloodied and shoo’d them off to their rooms with warning of being reprimanded that weekend.

Bakugo silently agrees. He doesn’t need Aizawa to know that Deku and him somehow fucked each other over even further. Or worse, he thinks they’re lying to get out of whatever trouble they ended up getting themselves into. Perfect, just perfect.

“Alright. Until Recovery Girl figures this shit out, or we go back to normal... we’re gonna just have to live like this.” Bakugo nods.

Deku smiles with Bakugo’s face. Bakugo is taken aback by his own pearly white smile staring back at him. When was the last time he could smile so genuine like that? He cursed internally.

“Don’t go smiling like that, we need to make some ground rules first!”

“Kacchan!”

“I’m serious.”

He is.

Before the two of them head over to the classroom to finally speak to Aizawa about their punishment they talk over they’re ‘ground rules’.

“Text me, call me, fucking email me if you have to if you don’t know where something is or how you need to act. Got it?”

Midoriya chuckle lightheartedly at that.

“What’s so funny?” Bakugo sneers.

Midoriya shakes his head. “We’ve been best friends since we were four, I think I know Kacchan’s mannerisms and how to speak. That’s not gonna be hard!”

Bakugo doesn’t press any further. As sad as it is, he trusts Deku enough in that regard. The boy is a freak anyways. He probably has Bakugos routine color-coded and filed in his brain, along with his shoe size and favorite Bath and Body Works candle scent.

Being Deku is going to be way more difficult than Deku being him he figures. The boy is gonna have to pretend to enjoy spending time with the nerd’s friends and Bakugo would rather tweeze his eyelashes out then do that.

“This is gonna be a nightmare.” Bakugo cracks Deku’s neck with a disgusting pop. “Ew, what the fuck?! Fix your neck support you dumb ass. Are you trying to feel seventy five when you turn twenty one... god.”

Midoriya chuckles awkwardly with an apology. “Haha, sorry about that.”

“Don’t apologize to me.” Bakugo starts to make his way down the hall. “You’re the one that has the fucked up spine, not me.”

Deku doesn’t comment on that and skips over the school tile to catch up with him. They continue their silent walk for a little while until Deku interrupts.

“Ah.. do we use our toothbrushes, the ones before we switched bodies, or... do we use the ones that each body was assigned to?”

Bakugo pauses. As disgusting as it is, it is a real question that he can’t not think about now that Deku mentioned it. He sighs. “We’ll just have to buy new ones for this-“ he gestures between the two of them “and we’ll use our old ones once we’re back in our bodies.”

Deku nods. “Of course you have an answer for that!”

Bakugo rolled his eyes. “Duh, I’d be a waste to get rid of our current ones. I’m not putting your weird mouth germs in my mouth.”

“But it’s no technically your mouth, it’s mine.” Deku has the audacity to look coy.

“I don’t care who’s mouth it technically is, Deku! I’m not putting your saliva in the mouth I’m currently using! ...fucking weirdo.”

Deku chuckles to himself as they continue on. Not long after Deku fidgets and turns to look over at Bakugo with a worried glance.

“What now...” Bakugo sighs.

Deku huffs. “You said we needed to lay down ground rules, so I’m laying down some ground rules!”

Bakugo wonders what’s got him so peeved but never the less opens his ears to whatever the shit the nerd’s about the spew.

“Alright.”

There’s a pause.

Bakugo glares and the nervous looking expression on his once own face.

“Promise me something?” Deku stops in the middle of the empty hallways.

Bakugo stops a foot or two after hims and turns around. Deku looks determined in the blond’s body: shoulders back, head high, eyes pinched. So it was actually serious?

Bakugo stops himself from ‘anything’ and shakes his head back to clarity. “Alright, what is it? Spit it out, I promise.. ok? I don’t want this anymore than you so if you don’t want me to fuck something up any further than it already is let me know.”

Deku appears a little more settled after his statement, but still let’s out a shaky breath. “Promise me you won’t open the box underneath my bed?”

Bakugo figures two things after that statement. One, they’re going to have to sleep in each other’s rooms as to not cause suspicion. And two, Deku has a freaky porn addiction or something equally as embarrassing.

Bakugo holds back a snort. “I’m only going to say this once, but I really don’t care what’s hidden in your room. I’m going to have to change and use your clothes, I might have to open some draws to get to your shit-“ He doesn’t believe he’s doing this, but anything to make this easier for him “but if it helps you sleep at night you can grab anything you want untouched before we have to use each other’s rooms. Take it with you so I don’t touch it on accident.”

“Do you promise not to look in the box, Kacchan?”

“What did I just-“

“Do you promise?”

“Yes.”

Deku smiles without another word, leading the way to Aizawa’s classroom.