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Shut up before I shut you up.

Summary:

Shinso and Monoma have a sleepover that leads them to being closer.

-----

“Hitoshi if you don’t shut up I’ll shut you up.”

“No Hitoshi you cant let eggshells fall into the batter.”

“You.. you don’t think it’s a scary quirk?”

Notes:

Maki is Monoma's little sister and has a blood manipulation quirk. She has a high pain tolerence and her cells regenerate very fast.

Requests are always welcomed!
Enjoy!!

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

Work Text:

“Monoma I---”

“For the last time call me Neito”

Monoma had been relentless, trying to get his best friend to come over to his home for a sleepover. He found out how Eri had never experienced a sleepover. He made it his sole purpose to make sure she would have one she could enjoy. Maki (his younger sister) was overjoyed when he presented the idea.

Now you see Nieto loves Maki.

He really does.

Though the thought of spending his Friday babysitting two children alone didn’t sit well with him. So he did what any reasonable person would. He began to rope Hitoshi into his problem.

“Neito for the last time I don’t think I can make it!”

“And why is that Hitoshi?”

Shinso was Monomas’ best friend, and this was the first time he had been invited over to his home. He didn’t really have an excuse on why he didn’t want to go. In reality his parents scared him a bit. What if they found him ‘unworthy’ of being Neitos’ friend? He didn’t want something dumb like that happen.

“Neito you know I uh have um plans?”

It came out as more of a question than a statement. Shinsos’ eyes scanned over the blonde's face watching him sigh.

“Hitoshi I swear if you say something dumb I will steal your quirk and use it against you.”

The argument between the two had been going on for some time, and Monoma simply didn’t understand why his best friend wouldn’t want to come over to his house.

“Are you embarrassed of being my friend?”

Monoma looked down, face void of any emotion. Shinso began to panic before firmly stating how he wasn’t and he was just nervous. Monoma laughed at the boy telling him he was just joking before Shinso let out a breath of relief.

“Nervous of what? I don’t bite you know..”

“It’s dumb don’t worry about it Neito, I’ll be there. What time should I co-”

“Shinso you’re really dumb you know that? It’s probably stupid, but tell me.”

“I told you don’t worry, it was just anxiety dont worry too much.”

Monoma raised an eyebrow before grabbing his hand and soon letting go.

“Shinso Hitoshi, why don’t you tell me?”

“Becau-”

Monoma had used his own quirk against him. With a victorious smirk he looked at Shinsou’s panicked eyes.

“Tell me why you’re nervous. Won’t you Hitoshi?”

“What if your parents don’t like me and think I have a villainous quirk and then disapprove of me so we can't be friends?”

Monoma looked at Shinso before stopping using his quirk. Soon he began to laugh and then cackle. Shinso just sat there confused. Monoma tried to speak, laughing in between every word.

“Y-You really think- that I- give a fuck abo- bout- what my parents think?”

“I mean..”

“Shinso- I can’t - my stomach hurts- giv-give me a second.”

“Well what if they don’t like my quirk and then hate me because I have purple hair or something like--”

“Hitoshi if you don’t shut up I’ll shut you up.”

Red dusted his cheeks and covered the tips of his ears. He was definitely overthinking this.

Shinso’s anxiety began to disappear after looking at Monoma ‘dying’ of laughter.

“Oh god Hitoshi my parents aren’t even home half the time. They would be fine with you as long as we’re friends.”

“Well who else is going to be at the sleepover Neito?”

“Hmm. oh You, me, Eri, and my brat of a sister.”

Shinso didn’t know about Monoma’s little sister. He understood that he wanted company babysitting. With a sigh he reluctantly agreed.

-----

“What do you mean Monoma?”

Aizawa was currently making himself coffee as he listened to Monoma rant.

“You know how Eri came over before right? Can’t you send her over for a sleepover?”

“Who else is there?”

“Me, Maki, and Shinso”

“Fine, make sure she sleeps by 11 latest. If anything happens to her you might as well be expelled.”

Monoma smiled lightly before agreeing.

“Drop her off around 5-6ish?”

Aizawa sighed. He was glad Eri had friends, of course he was. He still didn’t really trust Monoma. No he did, he was just worried.. No he was overprotective of Eri. Letting her spend time with Maki couldn’t be that bad...

Right?

-----

Shinso had agreed to go to Monoma’s place directly from school. He was in his uniform, but he didn’t care. He would change into Monoma’s clothes anyways. The two began to walk to the metro station making a quick stop at a small convenience store. The two came out with bags of snacks. Monoma insisted it was for Eri, but Shinso doubted that.

They soon reached the Monoma residence. Monoma entered a small code on a pin pad that unlocked the door. The two were greeted by a maid who was on her way out. Heading to the kitchen they dropped their bags and went to Monoma’s room.

“Hold on Hitoshi.. Let me just get you something to wear.”

Picking out a comfortable outfit he threw it at Shinso (he caught it with ease). After the two changed into something comfortable they headed out of Monomas room.

“Ah Hitoshi you haven’t met my sister yet have you?”

“No I haven’t, when will I meet her?”

“Now, come on, we have to go pick her up from school.”

It was around 4:00 when Maki’s school ended. So the two went to bring her back home.

“Neito, who’s that?”

Maki pointed at Shinso who slightly flinched.

“This is my best friend Shinso Hitoshi!”

Soon the room was filled with silence as Maki put a finger to her chin.

“OH! You’re Shinso Hitoshi? My brother’s always talking about how amazing you are and how he wishes you could dat--”

Neito clamped a hand over his younger sister's mouth before she could continue. He gave her ‘the’ look before she licked his palm. He pulled away, wiping her saliva on her shirt.

“You traitor. Why don’t you go to your room and finish up that homework so when Eri comes we can all watch a movie.”

Maki took a second to process his words before sprinting down the hall to her room.

“Well Hitoshi, why don’t we make a small snack?”

“What do you wanna make?”

“Coffee..?”

“Hmm why don’t we make macarons to go with the coffee?”

Shinso nodded. The two made their way up to the kitchen before pulling out a few ingredients. Monoma had a variety of coffee beans, creamer and even..milk? (We don’t question the rich) Monoma showed Shinso the coffee maker and pulled out three mugs. Shinso didn’t question it. Shinso made himself busy making coffee as Monoma pulled out ingredients for Macarons.

-----

 

“Ok so we just cut the bags like this so we can pipe out the--”

Shinso never realized how much of a perfectionist Monoma was till this day. He tried to help with the Macarons a total of four times. FOUR. Whenever he did something he was always met with a comment from Monoma.

“No Hitoshi you cant let eggshells fall into the batter.”

“HITOSHI IF YOU PUT IN THE WHOLE BOTTLE OF FOOD COLORING IT WON’T LOOK RIGHT.”

“Hitoshi for the last time you can’t eat raw eggs. That’s disgusting”

And so on.
Ok maybe Monoma did have a point, but he had gotten bored and wanted to try and mess with him. (That was a lie, Shinso couldn’t cook if his life depended on it.) Soon the Macarons popped into the oven with its filling stored in the fridge.

Time passed by quickly and it was now 4;50. The two had had the cups of coffee long before. Monoma insisted on keeping the third one in the fridge to be heated up later.

Maki was sitting on the counter listening to the two banter. Counting down the minutes till her beloved ‘Eri-chan’ would come.

Monoma had begun to clean up the excess batter. He turned his attention away from the extra batter and was met with a batter-like hand. Shinso had taken some of the excess batter and spread it onto Monoma’s face. Maki began to laugh as Shinso began to chuckle.

“Oh you think this is funny Hitoshi?”

Monoma grabbed a handful of batter and began to chase Shinso. Maki also grabbed some and spread it across the back of his shirt.

“I’ll come back for you little demon..”

Monoma continued to chase Shinso. Finally he reached him, spreading batter all over his face. He even got some in his hair. The two began to laugh realizing what they just did.

Soon Monoma changed out of his messy clothes into another pair. Shinso had washed his hair and Maki was scrubbing her face clean.

Soon the trio headed back to the Kitchen to finish up the macarons. Maki began to watch a show while Monoma and Shinso began to talk.

“No no, what I’m saying is Aizawa-sensei is obviously the strongest.”

“Not alone! Pair him up with snipe and they’d be unbeatable!”

Continuing their small chit-chat they heard the doorbell ring. Maki sprinted to the door using her quirk as a small boost. Her blood manipulation was really handy. Using her nails (they’re sharp) she cut a line on her palm. Allowing some blood to open the door before she even reached. There stood Aizawa with Eri hand-in-hand.

Monoma walked towards the door. Telling Shinso to warm up the coffee so he could give it to their sensei. Aizawa was invited inside briefly for his cup of coffee (which he chugged down.. That man is scary). He left Eri with her small bag that carried some necessities.

“ERI-CHAN!! YOU’RE BACK! LET’S GO TO MY ROOM AND HAVE SOME FUN!!” Maki excitedly squealed. Eri aggressively nodded following her.

-----

Monoma and Shinso dropped off some Macarons to Maki’s room before heading back to the living room. They put on a random movie. Shinso sat on the ground between Monoma’s legs as they watched. Monoma was braiding Hitoshi’s hair, completely forgetting about the movie.

Soon the two boys went into Maki’s room and relaxed over there.

“Maki-san what’s your quirk?”

Shinso was quite curious about the little girl. She hadn’t talked much to him, but he wanted to get to know her. Maki looked down.

“My quirk is..blood manipulation..”

“Shinso-chan IT’S SO COOL! SHE CAN DO SO MANY COOL THINGS WITH HER QUIRK TOO AND LAST TIME MONOMA-CHAN COPIED IT AND AND”

Eri interrupted. She was rambling and yelling all while jumping up and down. She really loved her best friend’s quirk. Shinso smiled a while hearing her rant.

“That’s a wonderful quirk you have Maki-san”

“You.. you don’t think it’s a scary quirk?”

“Nope, I think you could be an amazing hero with it.”

Shinso laughed at the irony. He wished someone told him that before.

“What’s your quirk Shinso-chan?”

“I can control you, it’s called brainwashing.”

“WOAH THAT’S SO COOL.”
With a small chuckle he watched the two girls bouncing up and down asking him questions about his quirk and coming up with ‘theories’ on the best way to use it.

How did they have so much energy? They didn’t even have dinner yet..

-----

The four sat down at the table. Mindlessly discussing things like school and so on. They ordered take out and Eri was on cloud nine ever since she found out what pizza was. They spent the rest of the night watching a movie. Tucking in Maki and Eri the two boys headed out.

“Night Hitoshi”

“..”

“Hitoshi.. You all good?”

“Yeah, just thinking. “

“Go on.”

“We should have more of these sleepovers, Neito.”

“Yeah.. we really should.”

Notes:

Requestssss

Monoma: Leaves Shinso in the kitchen for a minute
Shinso: Covered in batter arguing with Maki

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