In the dimly lit room, a man's hand moves with practiced ease, stroking his hard cock to the rhythm of the rain. His breath hitches as he tightens his grip, feeling the veins pulse beneath his fingers. The storm outside mirrors the one building inside him, his body tensing as he nears his climax. He lets out a guttural groan, his cock throbbing as he paints his abdomen with hot, sticky streams of cum. The rain continues, washing away the evidence of his solitary pleasure.