I got fucking horny on a german train ride. Noone around me but the possibility to be seen by someone made me incredible strong horny. I had a great cumshot. Just watch!
Tim Blesh - the horny dude from BLESHPORN.
I am proud to admit that I have sucked off guys on almost all forms of public transportation, including trains, busses and airplanes. Never a subway or commuter train, but an Amtrak train.