Just achieved my first public no touch orgasm. I had to take the train into the city during morning peak hours so I thought I'd try to make it interesting. It's a warm day forecast so i was wearing mid thigh length shorts and a t shirt and my favorite vibrating butt plug. I boarded the train, took my seat and prepared for the hour long trip, I moved my ass across the seat until the familiar vibrations started in my ass and looked around at all the women on their way to work, lots of short skirts with pantyhose or stockings and plenty of tight fitting tops. Didn't take long for my old cock to get rock hard and at each stop more sexy looking women boarded the train. About 20 minutes into the trip and i was leaking pre cum into my shorts and I was fidgeting my ass around in the seat, anyone paying any attention would surely have seen my cock outline and growing damp patch in my shorts. I continued looking around and dripping for a few more stations until one particularly attractive woman boarded the train and took a seat just opposite me. The rest of the trip i concentrated on her sexy legs in hosiery and tried for a glimpse up her skirt, this continued for about 15 minutes and my damp patch was now considerably larger. With only 5 minutes of travel left i decided to seriously try to cum in my shorts while still on the train so I concentrated more and fidgeted with more vigor to try and finish before my stop, sure enough just as the train pulled into my stop i felt my cock head jump and that tingling feeling of cum spurting from the eye, my face probably showed the signs of total relief but I now had to make it to the door without all that cum dripping down my leg, i managed to keep most of it in my shorts but by the time I reached the top of the escalator i had to head to the toilets as cum was visibly starting to run down my leg and my shorts looked like i had pissed myself. I changed my pants in the toilet and wiped up my mess, cleaned up my butt plug and headed off to my appointment feeling very pleased that I had achieved my first goal for the day.