Horny and alone, a strapping, muscular construction worker, clad in form-fitting spandex overalls, feels his desire rise. He can't resist the urge to stroke his throbbing cock through the thin, stretchy fabric. With a grunt, he pulls down his undergarment, revealing his engorged member. He jerks off furiously, his breathing ragged, until he reaches his peak, cumming heavily into his underwear.