On the Glasgow Underground, and it was packed full, no room to move, and I just happened to be behind a female wearing a silky green dress, and my crotch was pressed against her ass, for a good 15 min's.............missed my stop, stayed on the subway for another 10 min's before she got left
It was a strange day, she never protested, and made and commotion at what was going on, and at times it crossed my mind, was she pushing back as well, so that was one hell of a day