The step mom, Sarah, is fed up with her husband's lack of sexual interest. She confides in her stepson, Jack, about her desires. He hesitantly agrees to satisfy her needs. They sneak off to Jack's room where she undresses him and they engage in explicit sexual acts including blowjobs and various positions. Despite feeling guilty, Jack can't resist his stepmother's advances. Their passion intensifies as they explore each other's bodies. The climax of their forbidden tryst results in multiple orgasms for both Sarah and Jack. They collapse in a sweaty heap, knowing they'll never be able to go back to the way things were before.