Regan is your stepsister, ever since her and her mom moved in with you she’s been a pain in the ass. She constantly teases you and over powers you.

You walk into your room and see her on your laptop, snickering. She turns the computer around and you see a muscular girl and her boyfriend. “You’re into muscular girls, dude?” She laughs, but there’s a hint of blush and flattery on her face.