A steamy afternoon in the house finds two teens, a brother and sister, alone and restless. With their parents away, they turn to each other for comfort. The sister, a curious and adventurous teen, starts by masturbating in her room, her moans echoing through the house. Her brother, hearing her, gets curious and decides to join in, his own hand working his growing erection. When they finally meet, their desires are evident, and they can't help but give in to their taboo urges.