Our Baby Boy, a KiriKamiBaku story

1) A Mess of Things

Authors Note! : Mineta has been replaced by Shinsou in this au. This is due to me hating him at the original time of writing this story, however I don't hold that opinion anymore. Another thing is I have completely revised and edited these chapters from 2020, so they aren't as horrendous anymore 💀

001. A Week Before Moving Into U.A
Kaminari's P.O.V

    Good news? We don't have to do training today! Bad news? We have a quiz that I most definitely will not pass. Aizawa-Sensei informed us beforehand that something big is happening this week, something we all must be prepared for, "Okay problem children, as you are the students of 1-A, the staff has decided regarding some of the most recent targeting and attacks, that the best course of action is to move into the dormitory building usually reserved for third year students. Faculty members will come around to your houses this week to speak with your parents and get the needed permissions. The move-in date is Friday, September 17th. You will need to have your belongings ready by then. Understood?"

    With that, the entirety of our class nodded, not daring to ask questions. Everyone seemed excited so I felt like I was sticking out because I wasn't excited for this news, at all.
    I tried to be excited, but I have a secret that only a few people are allowed to know. I'm a little, or an age regressor, and I already struggle with not slipping into my headspace during school hours, but now I'll have to be around them 24/7. I glance around to meet eyes with Shinsou and Jirou, anxiety beating in my chest, but I try to act excited, so people don't question me. Aizawa knows, I know he'll try to protect me from this getting out but oh God. I'm so scared for this move.
    Then the added realization hits me, I have to live with Eijirou Kirishima and Katsuki Bakugou. I'm a goner.

Kirishima's P.O.V

We don't have training today, which I'm so glad about because my muscles have been aching from using my quirk so often! Though, we did have a test which was on Healthy Coping Mechanisms since we're studying the mental health struggles Pro-Heros can face.

    Once I finished my test, we still had 20 minutes left of class, so I grabbed out my phone and just scrolled on Instagram until Sensei announced that we'd be moving into the dorms that are usually reserved for third years! This is so exciting; I get to be closer to my friends and boyfriend!! That also means I have to keep up on my root dying, which might be a little bit of a hassle, but this is going to be so fun, it's basically like a forever sleepover!

    Once the bell rings, I leave class to look for Katsuki and see him talking to Kaminari, who's being his normal self and goofing around. My heart twinges in my chest a tad as I walk over to the two blondes, one of whomst I'm dating and the other one which my feelings have been becoming more and more apparent. I've been trying my best to suppress my feelings for him because I am dating Kat, and I love Kat, but do I have enough room in my heart for them both? I've been pondering on that for a while, and I finally realized I do.      

    That's why this afternoon while Kat and I walk back to my house, I'm going to bring up polyamorous relationships and try to scope his emotions on it. I hope it's not bad, because unless I can't read people for shit, I think Kat likes Kaminari at least a little bit as well. It's so subtle yet so noticeable; the way the Katsuki's face is tinted red when they talk, how gentle he is with the smaller blonde, how whenever Kaminari is in one of his clingier moods Kat doesn't push him away, he just accepts the hugs or arm clings.

Bakugou's P.O.V

It's shitty that we can't train today but instead have a test of all things. Ei said he wanted to hang out after school so I'm looking forward to that despite the nerves in my stomach since he sounded serious. My mind is filled with all the potentials that could happen, "I hate when he does that, I hate when he sounds serious because I'm so scared that he's going to leave me because maybe I finally overstepped, or became too much for him, or was to-"

    My train of thought is cut off by Aizawa telling us we have to move into dorms because of all the recent villain attacks. How great! I have to be surrounded by idiots all day, every day now. Once the bell rings, I'm right out of that class and somehow Denki managed to get out before me. I walk over to him, and he seems so lost in thought, he looks almost panicked.

    I tapped on his shoulder to get his attention, clearly scaring him with the audible gasp he let out with a small jump that followed. He saw me and started laughing, my mind starts up again but instead of overthinking now it's just full of cheesy, stupid shit about this blonde in front of me. Why the fuck am I thinking of him like that? I have a boyfriend for fucks sake. While me and the smaller blonde are talking, I feel muscled arms wrap around my face and I feel heat start to rise in my face which I scoff at before cranking my neck to peck a kiss on my boyfriend's cheek. Denki and Eijirou laugh at me for my obviously red facial expression.

002. After School
Shinsou's P.O.V

Pika⚡(Denki Kaminari) : hey shinnn!! do you wanna have a sleepover tn?

Me : Probably. Lemme ask dad.

I get up from my room and make my way to the family room where my dads are laying together on the couch, watching some old timer romance film.
   "Denki asked if I could go over and have a sleepover," I asked and got a simple nod in response from both after they exchanged a look that looked somewhat concerned, probably because they both knew about Kaminari's little 'habit' "Thank you." I walk back down the hall after shooting a message back telling Kaminari I'd be there in an hour and a half.

    I pop my head into Eri's room and ask her if she wants me to call her tonight since I'm having a sleepover with Denki, and she shakes her head and replies with "Nope! Bye-Bye!" I laugh and walk back into my room. I grabbed my duffle bag and threw some necessities in it; pajamas, clothes to wear tomorrow, a charger, hairbrush, my laptop and a blanket. I reach into my closet to grab a new stuffed animal I got for Kaminari for when he is regressed.

    I'm so glad he trusted me enough to let me in on his secret, he's my best friend and I enjoy taking care of him and so I spoil him quite a bit. The stuffed animal is a light-yellow care bear, with a sun on its stomach. My phone dings and I pick it up, fully expecting it to me Kaminari telling me to hurry up, very dramatically.

4-Leaf-Clover (Izuku Midoriya) : Hey mini Aizawa, what're you doing?
Me : Please don't ever call me that again, lol. I beg of you, but I'm going to have a sleepover with Kaminari. What about you?
4-Leaf-Clover (Izuku Midoriya) : Oh! I was going to see if you wanted to hang out, maybe another day!
4-Leaf-Clover (Izuku Midoriya) : This is irrelevant, but you and him make a really cute couple!
Me : Oh god no. We aren't dating lmao. He's like a brother to me, that would be gross. I like someone else, anyways.
4-Leaf-Clover (Izuku Midoriya) : Oh! Ohmygod I'm so sorry!!! I just assumed! Who do you like though, tea 👀?
Me : Absolutely not. Do you like someone?
4-Leaf-Clover (Izuku Midoriya) : Yeah, actually!
Me : Who? It's me isn't it!
Me : Joking.
4-Leaf-Clover (Izuku Midoriya) : Never in your wildest dreams.

It was just a joke, Hitoshi, don't be so hurt. What if he knew it wasn't in my wildest dreams, but instead what I dreamed of each night before I went to sleep?