In the dim light of their shared room, siblings succumb to taboo longing. She, a virgin, tentatively reaches out to touch his hardness, her eyes meeting his as she wraps her small hand around his throbbing cock. He guides her, teaching her to stroke and suck, his groans encouraging her. Their bodies entwine, her innocence lost as he gently penetrates her, filling her with his thick, pulsating length. Their forbidden union intensifies, their bodies slick with sweat and need, until they climax together, their cries of ecstasy swallowed by the night.