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How to cope with womanhood

Summary:

Bakugou has been hit by a quirk that alters his hormones, and he finds himself in a female body.
Between girls' nights, gossip, and menstrual cramps, our hero must confront his feelings for Kirishima, which are becoming more obvious by the day. But nothing escapes the sharp eye of a certain girl who is more than willing to help him.
Will he be able to overcome the challenges posed by his new body until he returns to normal?
This story is set during his third year at UA, beware of spoilers!

Notes:

I'm back at writing!
This is the first time I’ve posted anything here, and I don’t have a beta reader (srsly, how do you even find one?), so I apologize for any mistakes

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

Chapter Text

Katsuki woke up feeling weird, he was still feeling the effects of the quirk that had hit him yesterday during training. It wasn’t a problem, it would probably wear off later. He got up from his bed. Strange. He felt… lighter than usual.

He glanced in the mirror as he walked by. What the fuck? He had to stop and double check, it couldn't be right. The image in the mirror was wrong, someone was playing a prank on him. But there was no prank, the mirror didn't lie. “What the heck.” He almost didn't even recognize his voice from how high it was.

This wasn't real, was it? No, no, no. He must be dreaming. He pinched his arm and to his horror, the pain was real. He looked at the mirror again, he was shorter now, slimmer, and instead of pecs there were breasts on his chest.

Don't panic. One breath in, one breath out.

He needed to find a solution–and maybe kill the kid who had hit him with this quirk–but he couldn't go out like this.

He had a flash; there were girls in his class, he could ask them for clothes and maybe some tips on how to hide his chest. Now the problem was: whom to tell? He wasn’t close to any of them, they were more like acquaintances rather than friends.

One of them stood out in his mind, one with pink hair and pink skin, and she was the loudest of them. It was a risk, but he couldn’t ask anybody else.

He opened the chat with Mina.

Raccoon Eyes

You awake?

I need your help now.

Come to my room.

Do you know what time it is??

Come on its saturdayyy

I don't want to ruin my beauty sleep

Would I ask if I didn't need it?

At least tell me whats going on

You'll see when you're here.

Come ooon

 

He locked his phone and threw it on the bed. What was he doing? Involving Mina was a bad idea. As he waited, he spent the time reconsidering every life choice that had led to this moment, hoping that the quirk would wear off in the meantime.

Unfortunately he wasn’t that lucky.

 

There was a knock at the door “Hey Bakugou, what's going on? Why did you call me here so early?”

“I have a problem… Yesterday I was hit by a quirk, and…” His voice was higher than usual even if he tried to make it sound deeper, and the girl obviously wasn’t stupid.

“Is everything okay? Can I come in?”

“Only if you promise to keep your cool. Don't freak out, okay?”

“Why would I, just let me in.”

She was getting impatient, which was totally understandable. If someone called Katsuki to their room so early in the morning and then didn’t let him in, he’d blow the fucking door off.

But that wasn’t the case, for the sake of his own dignity, he didn’t need more people to find out.

“I swear to god–”

“Okay, okay, I promise.”

Katsuki exhaled loudly and opened the door. He leaned out just enough to peek through the crack, looking around the hallway to make sure no one else was around. The path was clear.

“Come in.”

Mina took a few tired steps into the room, “Seriously, Bakugou, what's going on? You're making me wor–” She turned around and the words died in her throat. Bakugou, well, didn't exactly look the way she remembered him.

Her eyes widened, now fully awake,“ YOU HAVE BOOBS?!”

And goodbye to discretion. 

“Shh I told you not to freak out,” he hissed, pointing a finger to her chest.

“Sorry, but you have to admit this is pretty shocking– is it because of that quirk that hit you?”

“Yes, and I need…”

“What are you trying to say? You need…”

Katsuki bit his lower lip, he had already asked her via message, but using his voice was a whole different thing. It was hard, but he eventually spat it out.

“I need help.” It sounded more like a strangled whisper, but Mina would have to settle for that; he wasn't going to repeat himself.

There was a pause, Mina’s expression alone was enough to fill the silence. “We need to call Momo.”

 

A few minutes later Momo Yaoyorozu knocked at his door.

“I wasn’t expecting that when Mina texted me.”

“No shit.”

“Be nice Bakugou, she's here to help.” Scolded Mina.

“Does Aizawa sensei know about it?” Asked Yaouyorozu in a concerned tone.

“Not yet, I don't have the proper clothes and I can't go out like this.” Katsuki gestured to his whole body; his clothes were definitely too big for him. His pants, in particular, looked like they were about to slide down at any moment.

“That’s why we need you Momo.” Mina spoke up, clasping her hands together dramatically. “Can you make him some clothes, please?”

“I usually prefer to buy them, but in this case, I guess I could do that.”

Mina giggled and hugged her. “Thank you Momo, you're the best!” Then she turned to him, “Come on Bakugou, say thank you to Yaomomo.”

“Tch.”

Mina shot him a warning look.

Unbelievable.

“Fine. Thank you.” he muttered through clenched teeth.

The back-haired girl turned to him, “Bakugou, what were you looking for?”

He took a moment to think about it. “If you could make a smaller version of my usual clothes it would be great.”

“Well, if you're okay with it I can start with–”

“Wait!” Mina cut in between them, “What about the bra?”

Katsuki almost choke. A bra? He didn’t need that. Just give him a shirt and some pants, so he could go find the fucker who’d put him in that situation. 

“Youre right Mina, I didn't think of that.”

What? No way they were making decisions on his behalf.

“I think it's better if you make him a sports bra or something like that, he doesn't seem the type to wear nice underwear.”

“Hey! Can you stop talking about me as if I weren't there?”

She gave him an apologetic smile, “Sorry, I assumed that you'd prefer to wear something more practical rather than something fancy.”

He wanted to complain and argue back, but she was right, he always wore practical clothes, better if they were black or a solid color.

“What were you looking for in a bra?”

He would've liked to reply that he wasn’t looking for a bra at all, if that wouldn’t have made things more difficult. He swallowed his pride and answered the question, “I don’t know how they work, but I’d prefer something practical that doesn’t limit my movements. And If you can, something that hides my chest… I’m still a man though."

Momo lit up, “In that case I think that either a sports bra or a binder could work. I’ll make both so you can try them and see what fits you better, but I need to take your measurements first.” She created a measuring tape and instructed Bakugou what to do as she took his measurements.

“Do you have a preference with the color–”

“Black.”

“Alright.”

“Hold on, how about you make an orange X just like his hero costume?”

Once again, Mina interrupted the conversation with one of her random ideas. Did she forget to take her ADHD meds today?

“Oh, I like it.”

“Do you remember that I'm still in the room?”

“Oh my god, Baku-girl is so cute when she's mad.”

“Watch your mouth Raccoon Eyes.”

“But he's still as rude as always.”

He rolled his eyes, Katsuli didn't know what divine power had prevented him from exploding her face on the spot.

 

Momo created all the items he needed with her quirk and handed them to Katsuki.

“We’ll be right out of the door as you try them on. Let us know when you're done, we want to see how they fit you.” Mina winked at him and the girls exited the room. 

What was that, a fashion show? She definitely forgot her meds. 

Fuck Mina and her stupid ideas.

He let out a defeated sigh. After all, he couldn't have asked anyone else.

He first tried on the new pants, and to his surprise, they fit his hips perfectly. He knew that Yaoyorozu had an excellent control on her quirk, but this felt like magic, as if they had been tailor-made for him–which, in fact, was exactly the case. He wouldn't admit it out loud, but he was getting excited to try on the other clothes to see if these fit perfectly as well. 

He took off his shirt. Having breasts felt so weird, they weren’t too big, but the extra weight on his chest still bothered him. He sighed and tried on the sports bra. It was perfect. There were no seams to bother him, and it was completely black. He turned to the side and looked at himself in the mirror. The tits were still visible, anyone could tell they were there, but now they stopped bouncing around.

Bakugou was about to take it off and try the binder, but he thought that was exactly what the girls wanted to see.

He opened the door and let them inside. He didn't dare to meet their eyes; he felt exposed, never in his life he'd felt like that. It was pretty embarrassing standing there in a body that didn't belong to him, and being studied by two other people.

“That looks good!” Mina circled around him to check it from every angle. “Momo you're amazing.”

“I did nothing special.” She squeezed her checks between her hands to cover the blush spreading on her face.

“Not true, you are really skilled!”

“Thank you.” She finally accepted the compliment as Katsuki rolled his eyes.

“Are you done? Now go out so I can try the other one.”

“Let me just see one thing.” Yaoyorozu took a couple of steps forward. “How do you feel? It isn't too tight, right?”

He looked down and took a deep breath. “Seems fine.”

The girl reached out a hand, and Bakugou backed down by instinct.

“Can I?” She tried again.

He nodded.

She made him lift his arm and grabbed the bottom end of the bra, pulling it a little. Bakugou wasn't used to this proximity with anyone. He usually would've already exploded anyone who tried to get too close.

“Good, it isn't too tight.” She took a step back. “Try to move around; it shouldn't bother you when you move.”

He obeyed and moved his arms in every direction. “Absolutely nothing. It doesn’t even feel like I'm wearing it.”

“That’s good. One last thing: do a jump.”

He jumped. His breasts bounced a little, but mostly stayed in place.

“How did that feel?”

“Weird, but it stayed pretty firm.”

Momo let out a sigh of relief, “perfect. We're waiting outside as you try the binder on.”

Alone again, Katsuki found out that taking off the sports bra was way harder than putting it on. After some difficulty, he finally managed to take it off.

The binder covered most of his chest and compressed his breast more effectively. As he was studying himself in the mirror, he heard the girls chatting and giggling from the hallway. 

He opened the door and peeked out his head, using the door to shield his body. Here he found the girls talking to Kirishima. Their eyes met.

“Hey Bakugou–”

He slammed the door shut. His eyes widened and his breath was caught. Also his heart pounded in his ears. Ho looked at his hands: they were trembling. His whole body was shaking.

He let himself slide down until he was sitting on the pavement of his room with his back against the door. What was that? Why was he so afraid of Kirishima seeing him like that? He didn't want anyone to see him while he was in that body, but that didn't justify the violent reaction. He needed to collect himself.

One breath in. One breath out.

Alright, Kirishima only saw his face, he could go to Aizawa sensei, find that kid and he would be back to normal before noon. Yes, that's what was going to happen, and nobody else would have to see him like that. 

Now that he'd calmed down, he could focus on the muffled voices behind the door.

“Is he okay?”

Katsuki's stomach churned at Kirishima's concerned voice. He hated hiding things from the redhead, but this condition scared him. What would his friend think if he saw him like that? That body wasn’t manly enough.

“He’d been hit with a quirk yesterday and we’re helping.”

“I see, is there something I can do?”

“Uhm,” he could imagine Mina shifting her weight from one foot to the other. “Actually, no. Sorry Kiri, girls only.”

They said their goodbyes and Kirishima left. Katsuki let out a sigh of relief. Then a knock on the door startled him.

“Hey Bakugou, you good? We’re coming in.”

He got up and let them inside.

Yaoyorozu did the same tests with the binder, and it surprised Katsuki by how firm his breasts  were when he jumped. “That’s crazy.” He was genuinely impressed. “I just find the orange X obnoxious.”

“Come on Bakugou, it looks good.”

He snorted, “I guess I have to thank you, Yaoyorozu.”

“Oh don't worry, I like to help when I can. There’s just a thing you should know about the binder. You shouldn't be wearing it for more than eight hours a day. Take it out or switch to the sports bra when you're in your room or you don't need it.”

“Got it”

“Perfect. Now I have to go, see you later guys.”

“See you Momo!”

She exited and closed the door behind her.

“Well? Do you want me to accompany you to Aizawa sensei?”

 

***

 

Thank god Mina went with him, because when he was furious, he certainly wasn’t good at explaining things. His sweaty palms kept steaming and crackling with little explosions all the way to Aizawa sensei’s office, drawing the stares of the few people there.

It was already embarrassing as it was, he didn’t need more extras to see him. Especially after what happened before leaving…

 

“Bakugou, where are you going?”

“To the bathroom dumbass.”

“Silly, you can’t go to the man’s bathroom."

“I’m a man.”

“Not now.” Seriously? She was being unreasonable now. It was just a bathroom.

“Why not?”

Mina gave him the kind of look of exasperation you give to someone stupid. Katsuki hated it.

“You don’t see anything wrong with that?”

“No. Now let me piss.”

She blocked him with her body, her face was more serious than ever. “Bakugou, you can’t use the man's bathroom when you have a woman's body."

He clicked his tongue in outrage, “Do I have to use the women's one now?”

“Well, I won't force you but I recommend it.” Her face twisted into a defiant smirk, “Unless you want to be harassed by Mineta… that’s your choice.”

Katsuki grimaced, “Fuck no!”

“Yeah, as I thought.”

 

Then when they were at the door ready to go outside, he found that, surprise surprise, his shoes didn’t fit anymore. He hated this shrinked version of himself. Mina had to give him her spare pair, the pink ones, which–to his surprise–fit.

 

***

 

They knocked on the door of Aizawa sensei's office. No response. Katsuki felt his patience slipping away with every step as they headed to the principal's office.

Principal Nezu almost choked on his tea when he saw him in that body.

“Tell me, what happened to bring you here?”

Katsuki was shaking with anger, what a stupid question was that? Wasn’t it obvious already? He tried his best to not roll his eyes at the principal, he decided to keep them shut and take a deep breath instead. He wanted to find that kid and explode them until–

“Bakugou was hit with a quirk during training yesterday. We were looking for Aizawa sensei, or someone that could get the student that caused it and reverse the effects.” Intervened Mina to save the situation.

“I see, let me call Aizawa and see what we can do.”

 

They didn’t have to wait for long, just a few minutes later Aizawa sensei and a kid entered the office. Katsuki shot up from his chair. “You little shit!” He yelled with his new high pitched voice. It was almost like hearing his mother’s voice. The thought made his stomach turn with disgust.

“Bakugou no.” Mina locked her arms around his waist to prevent him from exploding anything.

The kid was trembling in fear, hiding behind Aizawa sensei. What a good hero to hide like a coward and use a teacher as a shield. “Reverse your quirk right now and get me back to normal.”

He squeaked and hid even deeper.

“Hey, I’m talking to you.” He couldn't stand being ignored like that.

“Bakugou, please, calm down.” Aizawa sensei spoke with his usual bored-annoyed tone. “Let’s get over it quickly, what happened?”

Once again it was Mina's turn to give explainations. “...and that’s why we’re here.” She turned to the younger student, “Can you get him back to normal, please?”

“Well, actually… I can’t reverse this one.”

“You got to be kidding–”

“Bakugou, let him finish.” Intimated the teacher with a warning look.

This time the younger student spoke directly to Katsuki, “You told us to hit you with all we had yesterday, but I messed up my moves, and instead of changing your cortisol levels I accidentally replaced testosterone with estrogen and progesterone… That’s why you look like this."

Katsuki felt his whole body heat up as his palms began to smoke, “And you think that's enough to explain it? You didn’t say why you can't get me back to normal. And why didn't I turn like this the moment you hit me? Why did it take so long?”

“I’m sorry, I usually use my quirk to make myself stronger during fights, I'm still not used to using it on other people and I can't predict the effects.”

Katsuki couldn’t believe his ears, was this kid stupid? “Don’t use your quirk against people if you don’t know how it works.”

“I’m sorry:” He cried.

He pinched the bridge of his nose between his thumb and index finger to hold on to what little composure he had left, “How long will I stay like this, then?”

“It was a pretty strong blow, so… it should wear off in around a week, I think?”

He thinks, see? Awesome! Katsuki wanted to scream.

“Thanks,” said Aizawa, “you can go.”

The student said goodbye and closed the door behind him.

“What the hell? Are you just letting him go like that?”

“Bakugou.”

“It can’t be–I don’t want to stay like this for a week–”

“Bakugou.”

“I have to train and go to school and–”

“Bakugou!” The teacher had to physically stop him by squeezing his shoulders.

Katsuki's eyes were darting around the room as the strong hands grounded him. He forced himself to look his teacher in the eye. Katsuki blinked, focusing on the face of the person standing before him. Only now did he realize he was breathing heavily.

“You need to calm down.” His tone was serious; he wouldn't take no for an answer. But how could she possibly do that?

Aizawa sensei looked him in the eye, “There’s nothing else we can do, now we have to think how to manage the situation, okay?”

He blinked a few more times and tried to even out his breath, then he nodded slowly.

He couldn’t believe it, he was training to be a hero and went through way worse stuff, he was almost gone for good. All that for what? Not being able to handle being a girl for a week? Fuck that, he would do it.

He nodded.

“Good. In this case, I guess you'll need a new uniform for the following week.”

Katsuki grunted in response, “Let's not joke around, and make my uniform with pants, I'm not wearing a skirt–I'm still a man.”

“Yeah, yeah, as you wish.”

 

“Aizawa sensei, what about bathrooms?”

Seriously? They just got out from the principal’s office and Mina was already bringing that up?

“I mean, it makes sense that as long as he's in this condition, he uses women’s bathrooms.”

“Hey, don't stick your nose into things that aren't your business.” Intervened Katsuki.

“When you shower they're going to notice. Not to mention that you're shorter, have a higher-pitched voice, and your features are overall softer. They’re going to notice and you'll be in trouble. It’s better if you tell everybody what’s going on.”

Katsuki didn't have a plan; he thought he could fix everything that morning, and he certainly didn't want anyone else to know about it. He was about to tell her to fuck off, but Aizawa sensei was faster to interrupt.

“Alright, let me discuss the matter with the principal.” The teacher went back into the office.

“You didn’t have to say that.” Hissed Bakugou, “It's none of your business.”

“I’m sorry, but it didn’t seem right to me.” She bit her lower lip, ”I don’t want you to experience being eyed by men when you’re into that body…”

“You think I wouldn’t be able to defend myself?”

“That’s not what I meant, I just thought that I don’t want you to have to defend yourself. I am not implying that you’re weak, just, I don't know–I have a gut feeling that things should be like that.”

“You still shouldn’t have said it.” He let out a grunt. “Aizawa would've come up with it anyways.”

“I’m sorry.”

Aizawa sensei came out of the office. “Alright kids, let’s head to the dorms so I can inform everyone about the new arrangements.”

The walk to the dorms was silent, which Katsuki appreciated. He took the time to prepare himself for the public humiliation he was about to go through.

Suddenly something brushed his hand snapping him out of his thoughts. He turned to see what it was–it was just Mina. She grabbed his hand and gave it a quick squeeze before letting go. Her face expressed regret and some sort of compassion. He looked away.

 

***

 

“Are you all here?” Aizawa sensei scanned the room and continued speaking without waiting for an answer. “Good. Bakugou was hit with a quirk that has altered the hormones in his body.”

All eyes turned to him in an instant, some confused, others shocked. He tried to ignore them by staring at some random spot in the room, but he still felt himself blushing.

“He’ll stay this way for about a week, until the effects wear off. During this time, new measures will be put in place to address the situation: Bakugou will be allowed to stay in his room since this is a temporary condition, but he’ll use the girls’ bathrooms and locker rooms. Is that clear?” 

“Why can’t he use the men’s bathroom?” someone asked.

“Because I trust the girls to not do harm,” he looked directly at Mineta, giving him a warning look. 

He turned to Bakugou before leaving, “Don’t get into more trouble, problem child.”

 

***

 

Katsuki really wanted to not get into trouble, but this time it wasn't his fault. 

He went to his room after lunch, he had to study and wanted to avoid his nosy classmates and their stupid questions.

He kept the binder on; at least that way his chest looked almost normal, and didn’t have those stupid breasts hanging down and bothering him.

He was doing his homework when Kirishima knocked at the door. 

“Yo Bakugou, can you help me study?” It was stupid. Kirishima always asked him to study together when he didn’t want to. He usually ended up eating snacks on Bakugou’s floor as he explained what he was studying. That was just an excuse for the redhead to hang out and pretend to be productive.

He leaned against the door’s frame, “Are you actually going to study today?”

He laughed awkwardly and mumbled a reply, caught. 

Katsuki bit back a smile.

“That’s the plan, but I also brought your favourite spicy chips.” He grinned as she showed him the bag.

Katsuki shook his head and let him in anyway.

At first they actually studied, but they ended up chatting like usual and eating the chips. Kirishima slowed him down, but he was grateful that he was acting normal around him and wasn’t asking inappropriate questions.

Deep down he enjoyed those times with him, and Katsuki wished they could keep being like this even after graduation. He let out a sigh before he could even think of stopping it. Of course Kirishima noticed, he always did.

“Is something wrong?” He turned his head to look at him from where he was laying on the floor.

Katsuki’s heart fluttered and felt heat rising to his face. He was sitting backwards in the chair, with his arms resting on the back. He buried his face there before the blush became too obvious.

“No, it’s okay.” He didn’t want to sound like a nostalgic bitch when school hadn’t ended yet. Those stupid hormones were making him strangely emotional. 

He peeked out from behind his arms and met his gaze. Kirishima didn’t look convinced, but he didn’t pressure. Katsuki appreciated it.

Instead he asked to end the study session here and hang out in the common room with their classmates. Katsuki was reluctant; to say he wasn't comfortable in that body would be an understatement, and wasn’t ready for the curious looks the others would give him.

Kirishima sensed the turmoil unfolding in his mind, “We don’t have to if you don’t feel like it though.”

“It won’t hurt I guess… just give me five minutes to prepare myself, I am not ready to socialise.” He closed his eyes and rubbed his temples.

They eventually went down to the common room. They joined Kaminari and Sero on the couch. Bakugou just sat there, letting Kirishima do the talking.

 

Nobody had bothered him and it was going well for a while, then suddenly Bakugou felt something weird, his tummy hurt in a different way than usual. He wasn’t used to those body parts, and didn’t know what was going on down there, maybe women just felt things differently. He assumed that checking wouldn’t hurt. Bakugou got up from his spot, ignored his friends and went to the bathroom. The girls’ bathroom. 

 

He didn’t know what he was expecting, but nothing could've prepared him for that

“Fuck!”

One breath in, one breath out. Everything would have been fine and he would’ve solved the problem.

Fuck! 

He was a man, right? This shouldn't have been possible because he was… a man? No, now he was in a woman’s body.

He cursed again and buried his face in his hands. Don’t panic. Kirishima would say that’s not manly. He pushed the thought aside, he didn’t have time for that.

He wanted to hide; every fiber of his being was telling him to run away, to lock himself in his room and not come out until he was back to normal. But the rational part of him told him that wouldn’t work.

At that moment, only one person came to mind who could help him: Mina.

Fortunately he’d brought his phone with him.

 

Raccoon Eyes

Help.

Now.

In the bathroom.

 

Mina's reply came shortly after.

 

Raccoon Eyes

What happened?

Are you in the women’s bathroom?

Fucking obviously.

Come here now.

Everything ok?

On my way 

 

As promised, she arrived in a couple of minutes. “Bakugou, you good?”

“I wouldn't have texted you if I were good, what do you think?”

“Harsh as usual, you seem pretty okay to me.”

Katsuki let out a frustrated groan.

“Hey, I can help if you tell me what's going on.”

This whole thing was so embarrassing, what did he do to deserve it? “I… might be bleeding.”

Mina didn’t say anything right away, she let the silence settle, making Katsuki regret calling her.

“What?”

“Exactly what I said. That woman thing.” This was a rock bottom, Bakugou couldn’t go any lower.

“Are you on your period?”

“Fucking obviously.”

“I see, don’t worry Bakubabe, I’ll get you pads and a change of clothes. Don’t move, I'll be right back.” He heard the bathroom door close, she was gone.

“No shit, where the hell am I supposed to go, raccoon eyes.”

 

Mina came back with a change, and Katsuki opened the stall's door just enough to grab what she was handing him. The hardest part was following Mina’s instructions to put the pad on. Open that, put it there, and… wings? Seriously, why don’t they teach those things in school? Once he was done he opened the door only for Mina to grab his wrist. “The fuck are you doing?”

“Come with me Bakubabe, we need an emergency meeting with the girls.”

Katsuki snatched his wrist out of her hold, “Don’t call me that. And I’m not going anywhere.”

“Oh, don’t be so stubborn. We just want to help you, we'll give you some tips until this whole situation is over. Besides, I was right.”

Katsuki raised a questioning eyebrow at her.

She grinned, ”I couldn't have helped you if I'd been in the men's bathroom.”

Katsuki rolled his eyes. He didn't want to admit it but it wasn't a bad idea, he could use the girls’ experience.

“Just wait while I put these in the wash,” he said, gesturing toward the dirty clothes.

The girl nodded.

 

They went to Mina’s room, the other girls in their class were already there. They immediately crowded them like vultures, worried and questioning glances filled Katsuki’s line of sight.

He could tell that Hagakure had the same expression by the frantic movements of her clothes. Only Jirou and Yaoyorozu kept their cool and stayed a few steps back.

“What’s the emergency?”

“Yeah, why did you call us out right now? What's so urgent?”

“Girls, calm down,” Mina waited for them to settle before continuing. “Bakugou will spend girls night with us tomorrow night, but firstly we need to teach him some thighs so he can survive until his body goes back to normal. 

“So, what’s going on?”

“Our Bakugirl here just got her first period and we have to help her out.”

A choir of surprised ‘ohs’ rose from the crowd.

“I gave him the basics so he could at least put a pad on, but he clearly needs more info.”

“Alright,” said Uraraka, “give us five minutes to create a power point.”

That was ridiculous. Were they actually going to make a power point? What were they? Middle schoolers?

In a handful of minutes they were ready, and Katsuki was pissed. How could they be so quick?

They gave him a detailed explanation of how period works and what happens to a woman's body during menstruation.

“Normally you bleed from three days to a week–”

“A week?!” Bakugou was shocked, “How can you bleed for a week straight and be okay? And it happens every month?”

“Every 28 days on average, but in some cases you can go longer or shorter. Every woman is different and we can tell you what happens in general, we don’t know how your experience will be.”

“Yeah, maybe you’re lucky and it only lasts three days.”

Katsuki pinched the bridge of his nose between his fingers, trying to take in all the information the girls were feeding him. “Just for the record, how long do ya’ll bleed?”

“Four days.”

“Six days.”

“Six days.”

“Five days.”

“Six days.”

“Five days.”

“It seems the odds are against me.”

“You don’t know that.”

He let them continue their presentation. He was horrified to say the least.

At the end they took some pads and showed him how to use them. He sighed in relief, at least he hadn’t messed up the one that Mina gave him earlier.

They also showed him tampons, but there was no way he’d put something in there. What if he put one on and then he suddenly turned back to normal? How would he remove that? It was terrifying.

They kept chatting, the girls happy to answer his questions.

“You can also experience pain during menstruation, usually the first days, but it can vary. If you’re lucky you won’t experience pain at all.” Explained Yaoyorozu.

“What kind of pain is it?”

“It can vary–”

“Come on, there are too many variables.” Bakugou rolled his eyes.

Hagakure and Uraraka chuckled.

“What’s so fun now?” He was starting to lose his patience.

“Nothing,” said the invisible girl, “It’s just that every body is different and we all have different experiences. These are just the average symptoms. You can’t control what to feel, you can just manage the pain when it presents.”

Katsuki frowned, he didn’t like not having control over his body.

“But we’re here if you need help or anything,” reassured Uraraka.

He didn’t want to need help. But–once again–he didn’t have control over it.

 

***

 

After dinner he stayed in the common room with the rest of his classmates. Worst decision of his life.

It started as normal, he was sitting on the couch minding his business and not really interacting with anyone, when he saw Mineta approaching.

Seeing Mineta was never a good sign, but the smile he was wearing almost gave him chills.

“Hello Bakugou, how is it like being a girl?”

He didn’t have time for this bullshit, so he simply turned his head and gave a vague response hoping he’d lose interest.

Obviously the bastard didn’t take the hint.

“Why do you even care, you want to try the experience first hand? It'll just take a second for me to get the kid and tell him to fuck with your hormones.”

“Not really, but you’re a boy and you should tell us and show us what it’s like.”

Did he hear it right? The bastard wanted to see what? His body?

“Hey, what are you guys talking about?”

Now Pikachu wanted to join the conversation, Katsuki rolled his eyes so hard he could almost see his brain. Fucking fantastic.

“Oh, Kaminari, I was telling Bakugou that’s a shame he won’t use the man’s bathroom during this week. I mean, he’s a boy, it wouldn’t hurt anyone if he just shows us…”

“Oh,” the two brain cells in Pikachu actually made a connection.

“Come on Bakugou, let us see them.” Kept pressuring the grape bastard.

“What the fuck, no.” There’s no way in hell he’d show his body to anyone, especially that guy.

“Come on, just a sneak peak…”

Suddenly Mina’s reasoning didn’t sound unreasonable at all. “That's how you treat women? Seek help, you're disgusting.”

“You’re still a man, right? It shouldn’t be a big deal if you showed us.”

“Right, don't keep them to yourself.” Said the second idiot.

The bastards thought that he was enjoying his new body. It couldn’t be further away from the truth. Did they hit their head when they were little?

Then Mineta reached out a hand and tried to touch his chest. That was the last straw. He moved before he could think; he’d grabbed Mineta by the collar and shook him violently. “You little shit!” His voice came out as a high-pitched growl, unrecognizable to his ears. That made him even more furious.

“Bakugou no.” Kirishima intervened to separate them.

“Let me, I just want to show him what happens when he pulls a move like that.”

Kirishima tried to hold him back like usual by putting a hand on Bakugou’s chest, but this time was different. His hand pressed against his breasts. Bakugou stopped in his tracks, he would've killed Mineta and Kaminari later. Kirishima noticed it too, his face went pale, then went as red as his hair. As if he was burned, he quickly removed his hand and started to apologize profusely.

“Oh my God I’m so sorry Bakugou, I didn't mean to touch you like that, I’m so sorry.”

Katsuki was blushing violently at this point, Kirishima was on the floor, his hands covering his face as he kept apologizing. Katsuki was frozen, his mouth open, unable to move or say anything at all.

“You’re the worst Shitty Hair!” He managed to blurt out before stomping towards the stairs.

“I’m sorry Bakugou, I didn’t mean to. Please come back.”

“Fuck you, I’m going to sleep.”

He was done, but apparently Mineta wasn’t, “Kirishima, you were blessed,” he cried, “Tell me, were they soft? Describe that feeling to me.”

“Fucking disgusting,” Katsuki muttered under his breath as he ignored them and headed to his room.

 

That night Bakugou tossed and turned in his sleep, the dull pain in his lower abdomen was really uncomfortable. It was way past his bedtime when he finally fell asleep.

Notes:

I hope that wasn't too embarssing...
Mina is good, Mineta needs to go to jail, and Kirishima? You tell me
This story will be short (3 or 4 chapters), but I'm so so slow at writing, I believe the next part won't come out until next month, bear with me please 😭
Also, consider that I haven't written anything in years and this is probably shit (but I'm open to constructive criticism, send help!)
See you with the next chapter!
Dream