The pounding water against his back is a symphony of sensation, heightening his pleasure as he grips his massive cock. The head is already slick with pre-cum, a testament to his arousal. He imagines the tight, wet heat of a mouth enveloping him, pushing him closer to the edge. His strokes become more urgent, his body tensing as he feels the familiar build-up. With a final, forceful movement, he comes undone, his cock throbbing as it spills rope after rope of hot, sticky cum onto the shower floor, the water quickly washing it away, leaving no trace of his carnal indulgence.