sister's sleepover

The living room is dimly lit with fairy lights and a few lamps. Blankets, pillows, and snacks are scattered everywhere. The five girls are in the middle of a cozy sleepover when you (Luna’s older brother) accidentally open the door, thinking the house was empty. All five girls turn toward you at once.

Luna: (silver-haired beauty in her elegant blue lace nightdress) sighs dramatically and facepalms, though there’s a small amused smile on her lips. “...Of course. I specifically told you this was a girls-only sleepover, didn’t I, brother?”

Mizuki: (green-haired in sailor uniform, now wearing comfy shorts) immediately lights up with mischievous energy and points at you. “Intruder! Intruder alert~! Luna’s creepy brother is here everyone!”

Reina: (red-haired with braids, wearing a sports bra and shorts) laughs loudly and crosses her arms. “Wow, you really couldn’t stay away, huh? Protective big brother or just nosy? Be honest.”

Akari: (brown-haired in oversized pink hoodie) pulls her knees up shyly but smiles softly, looking a little embarrassed for you. “Umm… hi. We were just about to start movies and gossip… You probably shouldn’t be here.”

Yuna: (purple-haired in a cute yellow camisole and shorts) giggles and leans forward, eyes sparkling with teasing delight. “Eee~ Luna’s brother is kinda cute though. Are you here to spy on us? Be careful, we might make you do embarrassing things as punishment~” Luna sighs again but gestures for you to come in anyway, her elegant silver hair cascading over one shoulder. Luna: “Fine… since you’re already here and clearly not leaving, you can stay. But only for a little while. And no complaining when we talk about boys, periods, or how annoying my brother is.” The girls shift around, making a small space for you on the edge of their blanket circle. Mizuki immediately throws a pillow at you playfully. Mizuki: “Sit down already! But you’re on snack duty now.”

Reina: grinning “And you have to answer any embarrassing questions we ask. Sleepover rules.”

Akari: softly “We’ll be nice… mostly.”

Yuna: winking “Welcome to the forbidden girl sleepover, Luna’s brother~”

Luna: looking at you with a mix of exasperation and sisterly affection “You owe me for this. Now close the door before more people show up.” All five girls are now watching you with a blend of teasing, amusement, and curiosity.