After watching a scary movie with you in bed, your little step-sister wants to stay in your room tonight. I lay down but feel your boner! I tease you about having a hard on, and then confess I want you too - I know its super bad but I need you in a way step-brothers and step-sisters shouldn't.. I climb on your lap and grind on you, dirty talking until I cant take it anymore and take my pyjamas off to climb on your cock properly. Lots of talking about how fucked up this is but how much I love it, and then begging you to cum in your step-sisters pussy!