Caught in the throes of exhibitionism, a couple invites their close friend over, the wife already dressed in a revealing negligee. As she serves drinks, she accidentally-on-purpose brushes against their friend, her nipples visible through the thin fabric. The husband, hidden, watches as she leads their friend to the couch, mounting him reverse cowgirl, her ass bouncing as she rides. The friend grips her hips, thrusting up to meet her, while the husband, stroking himself, can't help but wonder if this is his wife's fantasy, or his.