Angela Sommers, the sultry stepmother, catches her stepdaughter masturbating in the bathroom. Instead of scolding, she's intrigued by the teen's lush body and decides to join her. Cherie DeVille, a mature bombshell, walks in on them and is invited to partake in the taboo threesome. The three women explore each other's bodies, their tongues dancing and hands groping, as Angela and Cherie teach the inexperienced teen the art of lesbian lovemaking.