Aunt Barbara, a buxom, natural beauty, lounges naked in the sun, her big boobs glistening with sunscreen. Unaware of her nephew's presence, she begins to touch herself, fingers dancing over her clit, hips rocking. He watches, hidden, as she brings herself to a trembling orgasm, her big tits heaving. Later, she catches him masturbating to the memory, and a taboo connection sparks between them.