The man's hand wraps around his throbbing member, his balls aching with need. He strokes himself, the weight of his full sac swinging with each movement. His breathing grows ragged as he imagines the feeling of those heavy balls slapping against a partner's ass, further fueling his desire. He continues to stroke, his body coated in a sheen of sweat, until he finally reaches his climax, his balls emptying with a satisfying release.