Stepsis Takes Dad's Car, Scene #01

I always catch my step-sister Dixie Lynn taking his car when she leaves, even though my dad has instructed her multiple times not to. I took a short picture of her using my phone without saying anything. When she eventually comes back, I'm going to use this against her and confront her. I tell Dixie that I will need something in return if she wants me to keep quiet. I undress and tell my sister that she will have to let go of me. At first, she chuckles, thinking I'm kidding, but I'm not! I fuck my sister Dixie in the living room, but I make her swallow my cum when I'm done because I don't want to create a mess. Because Dixie has a great nice pussy and I want to fuck her again, I hope she breaks the rules more frequently.