Jay, home from college, finds Madison, his stepsister, all grown up and innocent no more. She confesses her newfound curiosity about sex, and Jay, with a mischievous grin, gives her a dildo, saying, "Here, practice with this." Later, Madison's eager exploration draws Jay's attention. He watches, hidden, as she pleasures herself, her giggles turning to moans. Caught, Madison turns the tables, sucking Jay off until he can't resist, marking her face with his warm cum in a surprising, kinky first.