Brothers and sisters share a bathroom, but not this kind of shower experience. As the brother steps in, the sister, curious and horny, peeks through the curtain. His cock, thick and hard, catches her eye. She can't help but watch as he soaps up, his hand stroking his length. The sight of her brother's cock makes her pussy wet, and she starts to play with herself, not realizing he can see her. The bathroom fills with steam and their moans, as they give in to their taboo desires.