Katsuki's Baby Sister

{Special} Sleepover with Kiri

Upon request here it is! Enjoy!

Third pov

Shiyoko had woken up to the sounds of yelling but what's new? Oh right, there was a familiar yet unfamiliar voice responding to Katsuki's yells. Curious she slid off her bed only half awake and dragged herself downstairs.

Katsuki never woke up before twelve why is he up at nine in the morning screaming?

Her question was answered in the form of the one and only Kirishima Eijirou. Katsuki was beating him with rolled up paper as he explained a math question Shiyoko knew she wouldn't get right. It was as if they were speaking a completely different language. Eijirou was the first to notice her and he perked up instantly.

"Hey little princess what's up? Did we wake you?" He asked totally ignoring what he was just doing and got up just so he could lift her into his arms.

"You did, but that's okay..." she trailed off yawning. Eijirou sat back down where he was to see Katsuki giving him a look of confusion.

"What?"

"What the fuck is with the little princess shit?"

"Oh! That's because when it comes to you two it's like she's a princess and you're her knight always there to protect her!" Eijirou laughed earning and eye roll from Katsuki.

"Uh huh...fucking focus dumbass!" Was the response he got along with a slap to his head with paper.

"Okay okay!" But despite saying this he looked down and smiled, cooing when he realized Shiyoko had fallen asleep against him "Oh my God she's precious!" He cuddled her eyes turning to stars as he looked up at Katsuki who stared at him with an unimpressed face.

"You're so lucky man!"

"The fuck? How!?"

"Look at her dude!" He motioned with his eyes to Shiyoko who he just couldn't help but cuddle, which made her cuddle him as well. "She's adorable! I mean I knew that already but is this amount of cuteness legal? Does she do this all the time with you?" Katsuki sighed and stood up.

"We're taking a break. The shit coming out of your mouth is giving me a fucking headache. Go put Aoimoku back in her room it's the second door on your left." Nodding Eijirou stood up and did as told.

°^° °^° °^°

It's eleven now and the boys were still studying while Shiyoko was sitting in the living room making things float around her because she was board and there was nothing worth watching on tv.

"Dumbass! How many times do I have to explain this shit for you!?" Katsuki screamed for the fifth time in under five minutes at Eijirou who only chuckled nervously because he still didn't understand.

"Ne, Bakuchiku. Why don't you use things Eiji-nii knows about as examples?" Shiyoko asked as she was now floating upside-down beside Eijirou.

"Things he knows?"

"Hmhm! Like heros! And manliness!" Shiyoko smiled. This got a vigorous nod from Eijirou while Katsuki rolled his eyes.

"Whatever!" But he tried it and low and behold Eijirou got it.

This earned him a slap from Katsuki with the answer 'just because' when he was questioned for hitting him.

So the boys went on studying and though Ejirou did want to learn he found himself playing or doing things with Shiyoko more. She too had homework she was putting off just because she didn't want to do it but with a slap from Katsuki she got her stuff, sat beside Eijirou and started. Her first assignment was English and although she wasn't bad and picked it up easier than the boys, it doesn't mean she didn't struggle with some words.