Billy, a self-proclaimed exhibitionist, loves showing off his huge bulge in his tight pants. Today, he's in his favorite pair, a thin grey fabric barely containing his massive cock. He grinds, he adjusts, he teases, until finally, he can't take it anymore. Off come the pants, out pops his throbbing dick, already leaking with anticipation. He jerks it, his hand flying, his body tensing. He's close, so close, and with a final thrust, he cums, hard, his load spilling out, a river of white on his tanned skin.