In the dimly lit room, the siblings begin their massage, the scent of lotion filling the air. She straddles him, her hips grinding against his hardening cock as she works the tension from his muscles. He can't help but reach up, cupping her breasts, thumbs brushing against her hardening nipples. She gasps, her pussy dampening, and they both know there's no turning back. Their hands roam, their bodies pressing together, their self-pleasure intertwining as they give in to their taboo desires.