Aching with need, our solo explorer grips his engorged cock, his fist a tight, slick tunnel around his pulsating manhood. He pumps furiously, his body tensing as waves of ecstasy crash over him. He grunts, his release imminent, and with a final, desperate thrust, he spills his load, his cock head pulsing as it deposits rope after rope of hot, sticky cum onto his heaving chest.