You're at your best friend's house waiting for him to come home, only to find the entire place empty, with one notable exception. You walk past his sister's door and catch her, out of the corner of your eye, in a nearly-unbuttoned shirt and short skirt. This isn't the first time you've "found" a crack in her door and stopped to admire the view... only this time she catches you. To your surprise, she doesn't seem upset at all. Actually, the way she walks up to you and asks if anyone else is home, it seems like she wants things to go further. And then she makes it clear that she wants you when she changes into a slutty lingerie set and robe. But you'd better do it quickly if you don't want to get caught by your best friend. She's immediately on the ground sucking your cock like a pro, posing so you can see her fat ass as she pushes herself deeper and deeper onto your cock. You can see how desperate and horny she is as she commands you to get on the bed and fuck her as she jerks your cock lubed up with her spit and guides it into her wet pussy, telling you that she knows how badly you've wanted to fuck her, and she's right. Her big tits bounce in your face as she rides you, her moans echoing through the house. If anyone got home now, you'd be completely fucked! But you both can't stop. You go from riding to doggy to missionary, passionately fucking each other until she begs for a creampie. Her brother - your best friend - must be only minutes away from getting home, or less. Think you can finish before he catches you fucking his sister?