Cautious not to awaken her, I gently glide my fingers over the contours of her pussy lips through her panties. Pulling her panties to the side, she moans faintly as slowly slide my fingers inside of her. "wtf, what are you doing? why are you inside me?" she asks, becoming suddenly aware of her surroundings. "shut the fuck up" I whisper, with my hand pressed firmly over her mouth. "our parents are in the next doom, do u wanna get in trouble??" I slowly slide my hard dick into her tight, firm pussy. She attempts to muffle her moans as i fuck her slow and hard into her bed, before turning her over to fill her pussy from behind. Pinning my little sister into her bed I fuck her hard and fast, her tight little pussy brings me to the edge. Thrusting into her I fill her wet, pulsating pussy with my cum. I pull out and cum slowly drips down all over her pussy... Now you've gone and made a mess lil sis.. clean it up!!