Of course you do

"Of course sis," you say and lay on top of her, her tight cunt taking you balls deep.

"Oh yeah that feels so good bro," she moans. You kiss her on the lips to keep her quiet, sliding your tongue into her mouth and making out with her as you start pounding her young pussy. Your hot sister feels so good on your cock, especially when you're fucking her between her sleeping friends. She starts rubbing her clit as you fuck her hard, and pretty soon she cums hard on your cock, her sweet honey soaking the bed as your kiss muffles her scream. Her pussy squeezes you even tighter, causing you to unload almost a cup of cum into her, moaning loudly into her mouth.

You break the kiss, and after you catch your breath, you pull out of your sister. Her and her friends have cum dripping from their pussies, and you wonder what Alyssa and Anna will think of your sexy surprise in the morning.

“Thanks baby, that felt so amazing," Kylie says smiling contentedly. "You should hang out with us after school."

"Sure sis, I love having fun with you and your friends," you say. "Good night." She slowly falls back asleep as you fix your clothes and walk out, leaving them all naked.