The scent of his aunt's perfume lingering in the steamy shower fuels the nephew's forbidden desire. He picks up one of her silky thongs, rubbing it between his fingers, imagining her wearing it. His cock throbs, and he jerks it furiously, the image of his aunt's body etched in his mind. The shower's warm spray cascades down his back as he gasps, his body convulsing with pleasure. He drops the thong, panting, his heart pounding. As he cleans up, he hears footsteps outside the bathroom. He quickly dries off and dresses, his secret safe, his aunt none the wiser about the shameful act he's committed in her shower.