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A lone gym rat, clad in a scandalously tiny thong, grunts and heaves as he works his muscles. The skimpy lingerie briefs ride high, exposing his firm, round cheeks, while the G-string's thin strip teases between his legs. Dumbbells are no match for his strength, yet the man's confidence falters, his cheeks flushing as he catches fellow gym-goers eyeing his barely-covered assets.