Stepsis is a little upset that stepbro is now going to be going to the same school as her - she tells bro he's going to embarrass her and that he is dumb and he is never going to graduate - bro is offended and they make a bet that if he actually graduates on time he can fuck her - three years later - it's graduation day they are both excited and bro brings up the bet they had - sis didn't remember and is like no way I'm fucking you bro says bets a bet and she's a welch - after some teasing sis finally agrees to make bro cum by a handle but she won't fuck him and they can call it even - after handling for a while bro can't cum so we go to bj that escalates to sexKenzie Madison is a few years older than her stepbrother Kyle Mason and she's not happy when he starts at her school. She makes a bet with Kyle that he'll never graduate and says that she'll fuck him if he does.