The babysitter, a young teen with a body that belies her age, finds herself in a situation she never imagined. The husband, a man she's known since she was a child, and his wife, a mature, experienced woman, proposition her for a threesome. Hesitant at first, the babysitter finds herself giving in to the couple's advances, her curiosity and desires getting the better of her. As the night progresses, the babysitter finds herself exploring her own sexuality, her body responding to the touch of both the husband and wife, her innocence lost in a sea of pleasure and taboo.