Fucking my Stepsister Kitty Before She Heads Out for Girl's Night in Mom's Car

My sister Kitty thinks she is just gonna take Mom's car keys and go out looking like a slut for girls night. I quickly ruin her plan when I tell her that I am gonna rat her out to our parents unless she shows me the real slut she is. Kitty plays hard to get at first but soon as I pull out my cock she drops to her knees and starts sucking me off. I fuck my sister right in the family room while everyone is out and fill her mouth up with my cum. Now she can go out like a slut with my cock still on her breathe.