At the Trai Body Gym, two muscular brothers, one gay and one straight, find themselves alone and horny. The gay brother, unable to resist his desires, starts touching his hard cock through his shorts. The straight brother, curious and aroused, watches as his brother strokes himself. The gay brother, emboldened, pulls out his throbbing cock and starts jacking off, his brother's eyes widening with interest. The straight brother, tentatively, reaches out and touches his brother's cock, sending shivers down both their spines.