In the heat of the night, a sister's hunger for her brother grows stronger. She finds him sleeping naked, his cock already semi-hard. Unable to resist, she strokes it gently, feeling it throb and grow in her hand. He stirs, waking up to find her there, but she shushes him, slipping a finger into her own wet pussy. They lock eyes, and the taboo lust between them ignites. She climbs on top, impaling herself on his thick cock, riding him slowly at first, then faster as they both chase their climax.