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.