Confined to a tiny closet, a devout sister and brother struggle with their forbidden urges. She, a virgin, clutches his cock, her eyes wide with fear and desire. He, equally inexperienced, tentatively touches her, his fingers tracing her wet slit. Their first time is a frantic, hushed affair, their bodies pressed together, their breaths coming in ragged gasps. They finish quickly, their bodies shaking with the force of their release, their hearts pounding with the knowledge of their sin.