Blackmails his slutty sister until he gets to fuck her

This chick’s brother has discovered something about her that he doesn’t want her parents to know, something to do with what a slut she is, and he knows that knowing that he can blackmail her. He blackmails her on several occasions until he gets to fuck her, which has become his ultimate desire since he knows what a slut his sister is. The girl finally says yes and gives in, letting him do whatever he wants with her body. He starts groping her and then spreads her legs and starts shoving her on the edge of the bed, fucking her for a while until he fills her little mouth with cum.