The public transit system, always a breeding ground for anonymous encounters, sees a young man, unable to resist the call of his raging hormones, succumb to the temptation of a quick, discreet release. The throbbing in his pants becomes unbearable, and with a furtive glance around, he begins to slowly rub his erection through his jeans, the fabric growing damp with his pre-cum. The risk of discovery, the press of strangers around him, only serves to heighten his pleasure, as he inches closer to his climax in the crowded, moving vehicle.