A skinny girl, her chest flat and her body petite, stands in the shower, her need to pee growing unbearable. She's been holding it in for so long, her eyes widen with desperation as she fights the urge. Her panties are soaked through, clinging to her pussy, and her skin is flushed with anticipation. Finally, she can't take it anymore. She lets go, a hot, powerful stream of urine erupting from her, splashing against the shower curtain with a satisfying sound. The sight and smell of her own piss sends a thrill through her, and she begins to touch herself, her fingers dancing over her clit as she continues to pee, her body writhing with pleasure.