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Bakugou Katsuki X Reader

Summary:

After being hit with a quirk that basically pulls a Freaky Friday, you and Bakugou switch quirks! Now Bakugou has your healing quirk, and you have his Explosion.

Notes:

Imported from my Tumblr: moth-baybee

(See the end of the work for more notes.)

Work Text:

Everything was going fine. The villains were being handled. There have been a few casualties, but nothing that you can heal. You and Bakugou were on patrol when a villain attacked. Just one lowly villain, nothing the two of you can’t handle. Or so you thought. After the 5th person got injured, you called for backup, despite Bakugou and his ego telling you you’d be fine. The villain seemed to have multiple quirks, something that neither of you have gone against.

 A loud explosion went off, as Bakugou blasted his way over to you with another injured person.

“Another one for ya, (H/N).” He placed them down beside you. You nod and finish healing your current patient.

“Thank you, Dynamite. Keep it up!” You smile and heal the next person. He blasts off again and gets back into the fight.  

Deku and Kirishima came to help, and after giving them the low-down about the villain, they joined Bakugou in battle. You healed the last person, and they went off to seek shelter. You began to relax and take a breather, brushing the dirt off your skirt, when another explosion went off, this time sending Bakugou flying towards you. Deku caught Bakugou and sat him down. You immediately got to work healing him.

“What the hell happened, Dynamite?” You looked at him, worry lacing your voice. He ‘tsk’ed and tried to stand up.

“Just an ass who isn’t fighting fair. He’s got some bad quirks…” Bakugou mumbles. You can tell he’s worried, and very weak as he stumbles the get his balance.

You grab his arm, pulling him back down, “Sit down! You’re not fully healed yet!” He tries to get up again but stops when he sees the villain take aim at you, powering up a quirk they haven’t seen yet. You don’t seem to notice as you continue to fuss over Bakugou, so Bakugou makes the last-minute decision to shield you. Your terrified faces are the last thing you two see before you vision turns black, and you both pass out.


{THE NEXT DAY}

You awake at the hospital, hooked up to monitors. You don’t feel ill, just a bit sweaty, like you woke up from a bad dream. No aches and pains. No bandages anywhere. You look around and see Bakugou in another bed next to yours, in similar condition to you: couple bandages on his forehead and limbs and hooked up to monitors.

“Bakugou?” You call out to him. He stirs a bit, groaning about “five more minutes”, before his eyes shoot open and he realizes where he is.

“Why the hell are we in a hospital?!” He yells. You shush him, “No need to yell. I’m right here.” He ‘tsk’ed again and yells out for a doctor or nurse. A doctor comes in, along with Mr. Aizawa.

“Glad to see you both awake. How are you feeling?” The doctor says, relief written all over her face.

“Fine. Nothing hurts. What happened?” You say looking between the doctor and Aizawa.

“Yeah, and when can we get out of here?” Bakugou said.

“You two can leave and go back to the dorms once I sign you out. You were hit with an unidentifiable quirk. Until we know what it is, you two are to be watched and chaperoned.” Aizawa says, looking between you and Bakugou. You nod, as Bakugou sputters out in anger.

“What?! You dumbasses don’t know what quirk it was?” He clenches his fists, and suddenly feels how dry his hands are. “What the hell? Where’s my sweat?” He looks down at his hands, trying to make little explosions, but to no avail. He punches the wall, bruising his knuckles.

You turn to him, “Will you chill out? You’re giving me a headache!” You clench your knuckles and feel little firecrackers go off. You both freeze, and Bakugou looks back at his hands, his knuckles now healed.

The doctor gasps, “Oh dear! It looks like you two have switched quirks!” She scribbles down on her clipboard, as you and Bakugou begin stuttering and yelling about how to switch back.

Aizawa clears his throat, “Will both of you stop? Now that we know what the quirk did, we know how to handle this. How long will they be like this, doc?”

The doc hands him the clipboard, “Only a day or two. This quirk is rare, but a common problem we see here in the hospital.”

Aizawa nods and signs the clipboard and looks at you two, “Looks like you two will be working together until this is solved. You have a choice: sit out of hero work until you both are back to normal or train each other to use your quirks. Decide by tomorrow morning. For now, let’s get you to your dorms.”


{AT THE DORMS}

Once all of class 1-A was filled in on the situation, you and Bakugou went to his room to make the decision.

“What do you think?” you say, leaning against the wall. He sits on the bed, “I don’t wanna sit out. They need our quirks. Damn extras would be nothing without us.” He smirks, and you roll your eyes.

“Fair enough. We’ll just have to work hard to learn these new quirks. Shouldn’t be that hard though.” You flex your hands. Bakugou nods and stretches.  

“Might as well get some rest. Let’s meet up at 7 before class. We can work on our quirks a bit before having to use them in training. Wouldn’t want you to hurt yourself.” He mumbles that last bit, but you heard him, loud and clear.

“Aw, so you do have a soft side! How cute.” You chuckle. His face turns red at your teasing.

“Shut up, you damn nerd. I’m being serious. Now get out. I’m going to bed.” He turns away.

You laugh before making your way to the door, “Night Bakugou. See you bright and early!”


{7 AM THE NEXT DAY}

The next morning, you and Bakugou meet up at the P.E. Grounds in your gym uniforms.

“Morning Bakugou! Lovely to see you bright and early.” You tease.

He mumbles, “Too damn early to deal with you. Let’s just get this over with.” He stretches.

“Well, you’re the one who said, ‘bright and early’! Excuse me for just doing what you asked.” You huff, crossing your arms.

He ‘tsk’ed, “Whatever, just tell me about your quirk.” He looks down at his hands, flexing them. You walk over and pull out a knife.

Bakugou leans back a bit, watching you, “Hey! What the hell do you think you’re doing?!” His voice wavers.

You hold out your hand, “You wanna learn, give me your hand.” He cautiously does so, and you slice his palm. He hisses at the sharp pain, before seeing the gash heal itself within seconds.

“That’s one part of my Healing quirk. It automatically heals me. No matter how deep, or if there’s broken bones, it heals me. However- “, You slice your own palm, and grab Bakugou’s hand, hovering it over yours, “Just relax and breathe, and it’ll heal me.”

He looks worriedly at your gash. ‘It’s so much deeper than the one she gave me…’ He worries. He takes a deep breath, and with shaky hands, he heals you. A faint glow radiates from his hands. You flex your now-healed hand.

“It’s that simple. Boring, I know, but necessary, as you have seen on our patrols together. Your turn to teach.”

He nods, and clears his throat, “Well, my quirks Explosion. I secrete nitroglycerin-like sweat from the palms of my hands and ignite it on command. You did a little of that yesterday at the hospital.”

You chuckle, “Oh yeah, that’s how we figured it out. Doesn’t seem too hard.” You make little, tiny explosions in your hands, “Feels like Pop-Rocks!” You laugh.

He chuckles, “Yeah, it does. Now, try to gather some sweat in your palm, and make another explosion. Be sure to shoot it away from you. Don’t need you hurting yourself.” He crosses his arms, watching you.

“There you go acting all soft on me again. So sweet that you care about little ol’ me~.” You tease, grinning at the now flustered Bakugou.

“Sh-shut up.” He clenches his fists, before remembering he can’t make his explosions. You do as he asks and create your explosion.

Bakugou chuckles from behind you, “Not bad. Do it again. Make it bigger this time.”

You do it again, bigger, and more powerful, and the explosion propels you back. You yell out before falling back into Bakugou.

“I got you, princess. You need to brace yourself.” He holds you upright. You look over your shoulder at him.

“Princess, huh? I finally get my own nickname?” You grin, teasing him and trying to hide the faint blush on your cheeks.

He huffs, “Fine, I’ll go back to calling you a ‘damn nerd’ just like everyone else.” He lets go of you. You spin around to face him, crossing your arms. His face heats up, ‘She’s adorable.’ He gets a little smirk on his face, watching you rant on about finally getting a nickname, only for him to take it away. His phone alarm goes off, signaling 30 minutes until class starts.

“C’mon princess, wanna teach you how to propel yourself before class starts.” You squeal at the nickname, and he chuckles.


{IN CLASS}

While waiting for class to begin, you and Bakugou still talking about tips for each other’s quirk, when he brings up about your hero costume.

“What do you mean I need a different costume?” You ask, thinking about it.

“The skirt. You should wear pants of some kind. I’ll ask my parents to piece something together for you. Unless you want someone to see your underwear.” He teases, smirking at you.

After dealing with his teasing all day, you decide to give him a taste of his own medicine.

“I don’t know. Would you like to see my underwear, Bakugou?” You grin wide, as Bakugou tries to stutter out a response. He didn’t expect you to be so bold with your teasing. Before he could properly get a response out, Aizawa walks in, and class begins.


{P.E.}

Everyone was sparring, while you and Bakugou practiced more. Aizawa was surprised to see you and Bakugou getting a hold on your quirks so quickly, not expecting you two to wake up early to get a head start. During class, Bakugou had messaged his parents about your costume, and they helped make what was essentially a female-version of his hero costume, along with a male-version of your costume for Bakugou. Aizawa called everyone up and split them all up into pairs for patrol. You and Bakugou went to get changed.


{GIRL’S LOCKER ROOM}

You head into the locker room with the box Bakugou’s mom gave you. You opened the box and changed into your temporary costume.

“Woah, (y/n)! That looks so good on you!” Uraraka said. The other girls chimed in, agreeing with her. Looking at yourself, you saw the outfit accentuated your body features, making your hips, chest and butt stand out.

“I like it, just forgot how much skin Bakugou’s costume shows.” You say, feeling the cold air on your arms. Mina wraps an arm around you, “I think you look hot! It’s only temporary, right? Flaunt what you got!” The girls began to hype you up as you laced up your boots.

“Well, here goes nothing.” you mumble, face flushed as you step out of the room.


{BOY’S LOCKER ROOM}

His temporary costume has a lot of armor. Being a healer, you need more defensive attire than weapons.

“You kinda look like part of the SWAT team now, bro!” Kirishima spoke up. Bakugou fixed the somewhat-comfortable armored vest and looked at his reflection in the mirror.

“Yeah! Looks good, Baku-bro!” Denki spoke up “Wonder how she looks in your costume.”

“Well, if it’s anything like your costume, she’ll be smoking hot!” Mineta drooled, imagining your body. Bakugou growled and punted the grape across the room, “Shut up, you pervert.” He grabbed his gauntlets out of his locker for you and stomped out of the room.


{OUT FRONT}

Everyone meets out front to meet with their partner and find out what area they’re patrolling. Bakugou comes out and sees you, freezing in place. You notice him and make your way over, your hips swaying as you walk over.

“How do I look?” You say one hand on your hip. Bakugou stutters a bit, snapping out of his trance.

“Fine, I guess. Never look as good as me, but whatever.” He mumbles. His blush spreads across his face to his neck.

“You’re blushing.” You smile, crossing your arms.

 “Am not, shut up.” He looks away. You grin wide and look at the gauntlets in his hands,

“Those for me?” You nod towards them. He nods and hands them to you. You try to get them on, but have trouble, so Bakugou grabs your arm,

“Here, like this.” His hand pulls the one gauntlet over your wrist, smoothing the glove up your forearm. You get a slight chill from how gentle he holds your arm. He helps you with the other one, and the rest of the class can’t help but notice this moment between you, a moment that can only be described as intimate.

You glance up at his face, noticing the concentration and how calm he looks. You notice how handsome he truly is up-close, and accidentally speak your thoughts.

“You’re so handsome, Bakugou.” You whisper, then cover your mouth, surprised at what you just admitted. Bakugou chokes on air before turning fully red. Aizawa, who wasn’t really paying attention to all this, dismisses everyone to their patrols, and you and Bakugou silently head off.


{ON PATROL}

While on patrol, you could see out of the corner of your eye that Bakugou kept glancing at you, but every time you turned to look, he’d look away.

“Take a picture, it’ll last longer.” You say sarcastically. What you didn’t expect, however, was for Bakugou to pull out his phone and snap a pic of you. Hearing the camera go off, you spin around to meet his smug face.

“I cannot believe you actually did that!” You fume. He turns his phone around to show you the blurry picture of you.

“Not that good of a pic though. Let me take a better one.” He smirks, readying his camera again.

“If you want a picture, I’ll give you one.” You lean against the brick wall of the building you were currently at and look at the camera. Bakugou, as red as Kirishima’s hair at this point, took the photo. You both began to laugh and have a mini photoshoot. Striking all sorts of poses, silly, serious, even Bakugou trying his hand at modeling. You two laugh looking at the pics. Then you get a ping from Deku and Todoroki, requesting backup, so you make your way over.

It was chaos. Fire everywhere. The League of Villains was at it again. You clench your fist and turn to Bakugou, “Stay here, heal those I bring to you.” He nods, “Just like we always do.” You smile, “Always.” You blast off towards Deku and Shoto and find some others from class are here too.

“Hello, Lady Dynamite!” Denki says, electrocuting another lackey.

“Thanks for coming, didn’t know if you and Kachan were okay to join us. We just need to hold them down until the Pro’s get here.” Deku says. You nod and yell to everyone, “Bakugou is down there healing the wounded, so take them to him!” You point at Bakugou, and he gives a thumbs up.

Bakugou watched as you fought. You had a bit of a temper like him, but you aren’t as quick to anger like him. You use your emotion to help you, your anger literally fueling the flames. You propelled yourself at Dabi, who was too focused on Shoto to notice you. You attacked him, a flying kick to the middle of his back, knocking him down into the pavement.

“You interrupted our family meeting, you bitch.” He sent flames at you; you easily dodge them. Shoto takes the opportunity to shoot ice daggers at Dabi.

“Don’t worry, Lady Dynamite. I got him.” Shoto lunges at Dabi again. You nod and spin around, seeing Spinner at the last second, just barely missing the swing of his katana. You blast him away, and then blast yourself towards him. After some time in a heated battle with Spinner, the Pros come. Distracted for a second, Spinner takes a stab at you, piercing your side. You hear Bakugou yell out your name as blood pours from the wound. Aizawa hurries over and takes you to Bakugou, who is shaking. All the injuries he has healed so far were minor. Bakugou holds you in his arms, “I got you. It’s gonna be okay, you’re gonna be okay.” He can’t tell if he’s trying to convince you or himself.

You hiss out in pain, grasping your side. “Come on, Bakugou. You got this. It’s only a scratch. You sound like I’m dying.” You laugh, wincing as your side began to sting. You started to feel faint from the blood loss. Bakugou notices, and lays you down on the concrete, putting a jacket under your head.

Bakugou, on the brink of tears, hovers his shaking hands over your wound, “Stay awake, (y/n). C’mon. Don’t give up already, princess.” His voice wavers as your side begins to heal, the sharp sting now a dull ache.

“Katsuki…” You whisper, finally passing out from it all. Between the blood loss, the pain, and overusing your/his quirk, you were exhausted.

The battle was now over. The LOV escaped. Heroes were now putting out fires and repairing the damages done. Recovery Girl comes over after finishing her last patient. She took care of all the major injuries. She places a hand on your forehead and then places a small kiss.

“She’ll be fine. She overused her quirk- or rather your quirk. You did a great job, Bakugou. Your emotion must have increased your ability to heal bigger wounds.” She says, patting his back.

Bakugou pulls you into his arms and holds you close. His heart feels like it’s about to beat right out of his chest. He felt so scared that you were going to die, or he would mess up, or he would somehow make things worse, but his train of thought was interrupted as Deku came down.

“You did awesome, Kachan. (Y/N) will be so proud of you when she wakes up. She must be so tired from all the fighting. She was amazing.” Deku says. You could see the wheels turning in Deku’s mind as he replays the fight over again, taking mental notes of the way you fought.

“Of course, she was amazing.” Bakugou barks out defensively, “She’s always amazing…” Bakugou puts his forehead against yours. Deku smiles, realizing that Bakugou has really fallen for you, and he secretly snaps a pic of the two of you.


{THE NEXT DAY}

You woke up, alone in your room. You glance at your phone and notice it’s late in the school day. It hasn’t been that long since the tough battle, as it was only yesterday that you passed out in Bakugou’s arms. You smile at the thought, your whole body heating up. You read your many messages. A lot of them are people just checking in, but one from Deku stood out,

“I don’t know what happened between the two of you, but Kachan really cares for you. Haven’t seen this much emotion from him in a long time. He hasn’t left your side since the battle.”

 Attached was the picture he took when you were passed out, Bakugou holding your body in his arms, pressing his forehead against yours. You smile and save the picture. Just then, your stomach growls, and you get up and head to the dorm kitchen to grab a bite.

Upon entering, you see Bakugou, wearing sweatpants and a tank top, cooking something on the stove.

“Mmmm, something smells good.” You say, walking towards him. He smiles at you, before turning back to the pot.

“Hey, princess. Hope you like spicy curry.” He chuckles. You come up behind him, wrapping your arms around him, pressing your head into his back. He stiffens up and turns to you, pulling your head up to look at him,

“You okay, princess?” he looks at you, eyes scanning your face for any sign of pain or sickness.

You smile and hug him tighter, burying your head in his chest, “Thank you for taking care of me, Bakugou. You really didn’t have to…”

“Katsuki… you can call me Katsuki, and of course I had to. I felt responsible for all of this…” His arms wrapped around you.

You glanced up at him, removing your arms from him, he went back to stirring the curry.

“Katsuki, nothing that happened was your fault. Us switching quirks wasn’t your fault. Me getting hurt wasn’t your fault.” You don’t get a response, so you take a deep breath.

“Not even me falling for you… that wasn’t your fault either.” You turn away from him, not wanting to see his reaction to your confession.

You hear a slight gasp, the stove turns off, and the spoon hit the counter. Katsuki grabs your wrist and gently pulls you back to him, putting his hands on your waist. He has a slight blush on his face, but he stares deep into your eyes.

“You fell for me? For real? Don’t you dare lie to me, (Y/N).” He’s shaking, his hands on your waist, his voice slightly breaking, that’s how you know that he feels the same. You nod. A smile creeping onto your face. His hands cup your face, and he leans in, lips just barely touching, letting you decide if he can kiss you. You grab his face and crash your lips to his, and he automatically kisses back with a passion you only ever saw in battle. You both separate, and he places a kiss on your forehead, then puts his forehead to yours, tears brimming in both of your eyes’.

You hear the shutter of a camera and turn, seeing all of class 1-A looking at you. Mina smiles at the picture she took.

“About damn time!” She laughs, sending the pic to both you and Katsuki. He looks at Mina, who prepares to run off, but stops when she notices he doesn’t chase her. Instead, he wraps his arms around you and kisses the top of your head, flipping everyone off.  You wrap your arms around him, hiding your face in his chest, and listen to the sound of his heart.

Notes:

Imported from my Tumblr: moth-baybee