You're home on college break, and your step-sister invited you to her place for a sleepover, just like you two used to have in the old days! When she comes out dressed in a sexy little housecoat, you can't help remembering how cute and hot she is and how you've always been into her—but of course your own step-sister's off limits! When she goes to put on a movie, you get a glimpse of her Netflixxx history... and it's all shows about step-sisters and step-brothers fucking!!! She's embarrassed at first and tries to deny it... but your step-sister's totally into you, too! Before you know it, you've promised to break up with your girlfriend for her, and from there things get XXX-rated as she dominates you into fucking her, letting her fuck you, sucking her cock, and letting her cum all over your face! It's all over for you now—you're your step-sister's devoted cumslut boyfriend for life!