In the dimly lit bathroom, the sound of running water fills the air. A hand reaches out from behind the shower curtain, groping for the soap. It's a sister's hand, delicate yet eager. She's alone, or so she thinks, as she begins to soap up her body, her fingers lingering on her breasts, then sliding down to her wet, waiting pussy. She's lost in her own world, fingering herself, when suddenly, the shower curtain is pulled back. Her brother stands there, shocked but intrigued, taking in her naked form. They freeze, eyes locked, before she quickly covers herself, embarrassed but not before he catches a glimpse of her arousal.