Bus Seat Orgasm
The ability for a female to get off and orgasm, hands free, purely by the stimulation given from the motorized vibration and rough ride encountered on various modes of public transportation, i.e., buses, trains, subways, etc.
Cindy always arrived at work with a smile on her face. Not because he loves her job, but because her use of public transportation and her annual rider's pass allows her to cum from her daily Bus Seat Orgasm during her daily commute.