You're obsessed with your step-sister. She's so hot and doesn't shy away from walking around the house in her sexy lingerie that she wears for her boyfriend. Of course, you're going to be looking at her a certain way, but she wants to cut a deal with you today. If she lets you have a wank in front of her while she teases you to help get your obsession out of your system, will you promise to leave her alone!
