In the throes of a long, monotonous workday, a mature man seeks solace in self-pleasure. Unbuttoning his shirt, he reveals a hairy, muscular chest, his pants tenting with his growing arousal. He strokes his thick, veiny cock, grunting softly as he picks up speed. Pre-cum beads at the tip, and he uses it to lubricate his shaft, his fist pumping furiously.