In the throes of puberty, a brother and sister can't help but notice each other's changes. One night, as they share a cramped bed, their legs touch, sending a jolt of electricity through them. The sister, her pussy damp with desire, grinds against her brother's thigh, while he tentatively reaches out to touch her breast. Their breathing grows heavy, their hearts pounding in sync. They're on the brink of incestuous bliss, but a guilty conscience and the fear of discovery hold them back, leaving them in a state of frustrated arousal.