Stepsis Takes Dad's Car

My Dad told my step-sister Dixie Lynn numerous times that she is not allowed to take his car, as soon as she leaves I catch her taking the car. I didn't say anything, I just snapped a quick pic of her taking it on my cell. I am gonna use this against her when she finally returns I confront her. I tell Dixie if she wants me to keep my mouth shut I am gonna need something in return. I pull down my pants and tell my sister she is gonna have to suck me off, she laughs at first thinking I am joking but I'm NOT! I fuck my sister Dixie right in the living room but I don't wanna make a mess so after I am done fucking her I make her swallow my cum. I hope Dixie breaks the rules more often she has really good pussy and I wanna fuck her again.