This reminds me of years ago when on a packed tube in London I will early twenties then, wearing tight suit trousers, we were literally packed in the tube at rush hour, I was lucky enough to be in the door way, when this fit guy in a suit dash to the doors just before they closed literally he was pushed up against my arse, there was no room to move forward, but as the train moved off this guys cock bulge, just soft to start with or so it felt sliding on my trousered arse crack, the train rocked and he started getting a semi I could feel the heat and him growing, there was some hold up and we stationary for a while then we moved off again to a jolt cause more pressure, the guy in Frankie not of me also must have felt my now hard cock on his arse too, as we trundled on the guy behind my was now fully hard and throbbing, I have to admit squeezing my arse cheeks on his cock a bit, but don’t want to be too bold in case it was more innocent than my mind and arse was making it, when we had a big jolt the guy behind me said oh sorry, I said no worries I had a quick glance over my should as I did , he was fit and bearded, unfortunately my stop arrived I had to get off, said excuse me and as I went smiled at the guy who was behind me, he smiled and winked ... oh happy days