The shower's steamy mist creates an erotic haze as the brother's hands glide over his body, his cock standing stiff and proud. His sister, hidden, watches with hungry eyes, her own hand sneaking between her legs. She imagines his cock filling her, her pussy clenching with need. He turns, giving her a full view of his ass, his cock bobbing with each movement. She bites her lip, her fingers moving faster, her breath hitching as she nears her peak. Suddenly, he turns off the water, shattering the moment, leaving her breathless and yearning.