Masturbation is a sin, but Mary simply can´t stop her son from masturbating. So they have to do the next best thing. He has to cum inside his sisters. All of them in rotation so they don´t get pregnant.
TJ believes he notices when a girl has an orgasm. His 5 female friends vehemently disagree telling him their men can never tell when they cum. They agree on a little contest to decide the matter...