His Little sister

Not. A. Word.

"Satoruuuuuuuu! Promise!" For once in my life, I was whining like a child and begging my brother for something.

He smirked at me, his blue eyes glowing. "Oh? What's this? Is my baby sis finally acting childish?"

I blushed. "Please, Satoru! You can't tell anyone!"

"I won't. But uh... how good is Yuji?" He raised a brow, that smirk never leaving his face.

I frowned. "What? You mean his kissing? I dunno, it was my first.... But, it felt nice...."

He chuckled. "That's not what I'm talking about! How good did he dick you down?"

"What?! What do you think we did?!"

"Sex, duh."

I glared at him. "Satoru! It was just a kiss!"

"You were literally on his lap. You can't be seriously telling me that you two didn't fuck."

I frowned, shaking my head. "We didn't! We were both just curious about kissing...."

Satoru nodded, patting my head like a child. "Ok, that's fine. Just let me know when you do get fucked so I can relish in the moment that my baby sis stops being 'little miss perfect'."

I punched his chest. "No way!"

He laughed, but quickly got serious. "Ok, but seriously- let me know who you're gonna do it with so I can set some ground rules with them. Ya know, like no leaving marks where anyone can see them and making sure that they use protection at all times!"

I sighed, shaking my head. "God, you're so embarrassing...."

Satoru quickly pulled his blindfold on, his hair spiking up. "Yuji! Hey, my favorite student!"

Said boy came right over, blushing slightly and avoiding eye contact with me. "H-hey Gojo-sensei, Y-Y/n...."

I smiled, blushing lightly and turning away. "Hey, Yuji. Did you sleep well?"

"Y-yeah. You?"

"Mhm."

Satoru grinned from ear to ear. "Aww.... You two look so cute together. When ya gonna fuck my baby sis, Yuji?" I could tell he was wiggling his eyebrows under that stupid blindfold.

Yuji turned a deep shade of red. "W-what?! I-I didn't plan on doing that with her!"

"Don't worry, it's fine! I give you my blessing. Go ahead and rail my sister. Just use protection and don't leave any visible marks, and everything will be just fine."

"Satoru!" My voice cracked. "Stop that! It's so embarrassing! And you're making both Yuji and I uncomfortable!"

The tall man just laughed. "Ok, ok! I'll let you two make out in peace. Bye bye!" And he teleported his ass outta here.

Yuji and I just stared at where he was just standing a moment ago before making awkward eye contact, then looked away quickly.

I sighed. "Ignore what Satoru says. He's always like this. Don't mind it."

He looked at me and a soft smile spread on his lips. "Ok. So uh... what do you want to do while we have some free time?"

"Movies?"

"Bet."

The door to our movie room burst open, someone stomping while coming into the room and standing in front of us.

Kugisaki was blocking our view of the screen. "You two made out?!"

We jumped and looked at her with wide eyes. "Who told you that?!"

"Gojo!"

I smacked my forehead with the palm of my hand, dragging it down my face. I groaned. "I hate him soooo much!"

"Explain yourselves!"

I quickly shook my head and waved my hands in front of me. "We didn't make out! Satoru just said that just he's an idiot!"

Yuji nodded along with me. "Yeah! It was just an innocent kiss!"

Kugisaki's jaw dropped to the ground. "YOU TWO KISSED?! Forget the making out, but seriously KISSING?! You two?! EXPLAIN YOURSELVES!"

I hid my face with my hands, too embarrassed with this situation to show my face. "What's the big deal about a kiss?"

Kugisaki scoffed. "I thought we were friends, Itadori. And you Y/n, I thought we were gonna end up as besties! And then the two of you start secretly dating! I- I just can't believe it! The betrayal!"

"This is just a misunderstanding, Nobara!" I tried explaining. "Yuji and I aren't dating! We just kissed while watching The Hunger Games! It was just a kiss! We aren't dating, I promise!"

She took a deep breath and calmed down, sitting down beside me and staring deep into my eyes. "You promise?"

"Yes."

"And do you promise to tell me whenever that changes? You promise to tell me if and when you ever get into a relationship, regardless of who it's with?"

I nodded. "Of course!"

Dunno why we're acting like this. We barely even know each other- we literally just met yesterday. But, we're both first year females... so I guess we should try becoming close. This is the only explanation I could manage to even imagine as a way of explaining how and why I acting this way in this specific situation.

Nobara seemed to be pleased with my response, she pulled me into a hug. "You're the best, Y/n! Tomorrow, while we have free time, we should have a girls' day!"

"Love to!" I smiled. But I'm the inside, I felt nervous about being left alone with this scary girl.

"Yay! I'm looking forward to it! Sorry for interrupting your movies, see ya both later!" She waved as she walked out of the room and closed the door behind her.

I looked over at Yuji and leaned my head on his shoulder. "I'm sorry about Satoru...."

"It's fine, it's not your fault so you don't need to apologize." He pat my head, then gently stroked my hair. "Wanna go back to watching movies?"

I smiled and looked up to make eye contact. "Yeah. I'd love to."