Drifting alone in the cosmos, astronaut Sideral withdraws to his private quarters, eager to relieve the tension of his interstellar journey. Donning only his undershirt, he strokes his rigid cock, the friction sending waves of pleasure through his body. His imagination runs wild, picturing the alien temptresses he's encountered in his travels. His breathing grows ragged, his grip tightens, and with a final, shuddering thrust, he spills his load into the zero-gravity chamber.