Prima's brother's long showers have her suspicious, and she's determined to find out what he's up to. Armed with her smartphone, she sneaks in, finding him naked and hard, water cascading down his toned body. She watches, hidden, as he pleasures himself, his grip tight, his pace quickening. Prima can't help but touch herself, her pussy aching with need. Just as she's about to reveal herself, he finishes, his cum mixing with the water, leaving her frustrated and desperate for her own release.