⚠️ before this chapter starts, I just wanted to put a smut warning if you didn't read the bio of the story. ⚠️

"Before we go in, just a warning, my parents are fucking crazy." Bakugou said naturally. Oh, god... we walked into the door and Bakugou yelled "Aye, hag! Get down here!" Hag? Is he really allowed to call his mum that? She walked down the stairs with an annoyed look on her face. "Katsuki, if you call me a hag one more time, I'll--" she stopped when she saw me. She ran up to me and grabbed both of my hands.

"Aye, keep your hands of my girlfriend." Bakugou said, wacking her mothers hands away. "Girlfriend?! Katsuki, I didn't know it was possible since your personality is garbage! She's probably using you for your looks because you look like me." His mother joked. "Shut up, hag! She loves me for me. This is (Y.N)." Bakugou interrupted. "It's nice to meet you Mrs. Bakugou." I awkwardly said. "Oh, please! Call me Mitsuki but Katsuki has brought fake girlfriends home with him before to prove that he had a girlfriend so would you mind proving that you aren't a fake?" Mitsuki asked politely. What does she mean by prove? What do we need to do to prove that we're together and wow, guess I'm not his first fake girlfriend, he really is using m--

Suddenly, a rough grip took my face and Bakugou slammed his lips into mine. You could hear his mum fangirling which was funny. "Okay, your point is proven now, I know you aren't a fake." Mitsuki assured however Bakugou wasn't letting go of the grip. My body lost control and just fell as he was holding me up. I could've kept kissing him forever but he stopped to the sound of clicks. We both looked over at his mother who just took photos of us making out. "DAMN HAG, ILL KILL YOU, DELETE THOSE RIGHT NOW!" Bakugou screamed with explosions forming from his hands. "Bakugou, we'll just go up to your room and not bother your mother anymore." I calmed the blonde boy down. "'Bakugou?' Please, call him Katsuki. Since you're his girlfriend, you should have permission to call him by his first name." Mitsuki explained. So I guess from now on, I'm calling him Katsuki.

"We're going up to my room, hag." Bakugou mumbled. "Okay, I need to go to the store to grab something really quick!" Mitsuki giggled and ran out the door. We went up to his room and sat there in silence for a while. "So... Katsuki, huh?" I chuckled. He gave me an angry look. "Tch. Whatever. If we're teasing each other then let me just point out the way you didn't pull back and dropped to the floor when we were making out." He teased. My face went bright red. "Whatever! It was all part of an act. We aren't really dating or anything." I mumbled and looked away.

Mitsuki bashed through the door, threw a packet at Katsuki, said be careful and then slammed the door shut. We looked at the packet and what was inside and there were condoms. My entire body went flaming crimson but Katsuki didn't look fazed by it. "I told you my mum was crazy." He looked at me with a small smile which I'd never seen before, I'd only ever seen smirks and grins but not a full on smile.

There was a knock on the door and a brown haired man came in. "Oh, hello, you must the girlfriend Mitsuki was talking about. Sorry, she went a little crazy. My name is Misaru." He spoke. "I brought you some milk if you'd like some." He started to walk over to us and tripped. The milk went all over our uniforms and onto the floor. "Gah! I'm so sorry! I'll clean this up and you guys can have showers or something. I'll go get paper towels and cleaning materials." Misaru ran out of the room and I looked at Katsuki and giggled. He had the most angry look on his face and it was kind of cute. He calmed himself down a bit. "You can shower first if you want and I'll let you wear some of my clothes, you need to bring the, back tomorrow though." Katsuki finally spoke.

I got ready to get in the shower and made sure the door was closed. I finally got into the shower and started to clean myself. I wonder what we're gonna do after we shower. Maybe just talk?

A few minutes go by and somebody knocks on the door. "Who is it?" I yell. "It's Katsuki. Hurry up and get out of the shower, I want one. If you don't get out quick enough, I'm coming in." He said in his normal voice. Obviously he's joking when he said that he's going to come in. It's really wrong for him to come in while I'm still naked. I still had to wash my hair so I few minutes after washing my hair, Katsuki knocks again. "I wasn't joking when I said I was going to come in if you didn't hurry up. I'm coming in, now." He started to open the door and I panicked. "Wait, Katsuki! I'm still in here, you can't do that!" I screamed.

He didn't care, he came in looking straight at the shower with no hesitation whatsoever. "Katsuki, get out!" I yelled. Of course, he didn't listen and started to undress. Once he was fully undressed, he started to get in the shower with me. It was only a small shower so even if one person in there, it was pretty cramped. When he got in, his abs were against my chest and I could feel my soul slowly fading away and dying. I felt something up against my leg and froze in place.

"Oh, shit!" Katsuki randomly said, he seemed to be panicked. "K- Katsuki?" I only just muttered the words out of my mouth. "What's on my leg? I don't know if I want to look down." I asked and he looked even more panicked. "Don't look down, it's nothing, it's probably just my hand by accident!" He said but I guess curiosity got the best of me and I had to look down. "I told you not to fucking look down! I have a fucking boner, alright?!" He mumbled. I started to repeatedly apologise for looking, telling him that I just got curious.

He pinned me up on the wall. "Well, I did decide to get in with you for a reason." He smirked and got a little bit closer, cornering me. "Aren't we only fake dating?! This isn't real is it?!" I panicked, closing my eyes.

I looked down and saw his finger go into me. I instantly closed my eyes and gasped, my body felt weak but he held me up. "K- Kat... suki..." I muttered. "You seem to be enjoying this quite a bit, (Y.N). I guess this must feel good, what if I did it with something bigger, that would be a lot more satisfying." Katsuki must have been feeling pretty thirsty if he was saying things like that. I didn't even realise but before I knew it, I was begging him.

"M... more... p- pl... ease ka-- tsu... ki..." I begged. Suddenly, there was a knock on the door. "(Y.N)? Katsuki?" Are one of you in there. We both started to panick and didn't know what to do. "It's me, hag! Don't interrupt my showers! (Y.N) is studying so leave her alone!" Katsuki yelled while still fingering me, making it hard for me to keep quiet. "Well, hurry up! We're gonna have a huge water bill! Also, I won't disturb (Y.N), I'll just go in and put the milk in your room." That's when we really started to panic. If she went in and saw that I wasn't in there, she'd freak! Katsuki told me to keep as quiet as I could and said that he'd cover me but it was kind of hard to keep quiet with him still fingering me. "Katsuki! (Y.N) isn't in here!" Mitsuki yelled which panicked him so he accidentally pushed up a little bit harder. "Ngh!" Oh no, she's gonna figure that out for sure!

"Oh, I see now. Katsuki, you could've told me! I would've been proud!" Mitsuki yelled. "Just don't do it in there, clean yourself, come out and get a condom."

After we both got out of the shower, I fell to the ground. Katsuki looked at me confused. "A-- asshole..." I muttered. "You... you took advantage of me! I would have stopped you if you didn't do that." At this point, I was breathing heavily. After a while of talking about what just happened, Katsuki walked me home. He offered to meet my family but I instantly declined the offer and said goodbye.

I dunno what to put here, hopefully you enjoyed, I enjoyed writing it but knew I was gonna get super judged for writing it