In the throes of a storm, a lone figure stands naked, his body silhouetted against the lightning. He grips his cock, the rain pounding against him, his hand moving in a steady rhythm. His grunts of pleasure are lost in the thunder's roar. The rainwater flows down his body, mingling with his pre-cum, creating a slippery mess. He leans back, his body tense, and with a final thrust of his hips, he spills his seed onto the wet floor, the rain washing away the evidence of his solo indulgence.