The day I loved being exhibitionist

I came out of a trendy bowling alley, 18 years older or younger, wearing a black high-waisted mini skirt that was very small, a green fluorescent thong with lace and transparent tulle, white boots up to my knee, and muscular legs. I was in trance with four or five dudes at the bowling alley, lots of touching but nothing more. I finished the night and I was really hot thinking about getting home and masturbating. A friend picked me up in her car and took me to the train station, we said goodbye and I got on the platform, it was around 4 or 5 am on Sunday when I got there. There was a man who looked at me from top to bottom and I walked halfway down the platform to sit and wait for the train, he followed me behind. My mini skirt was so short that it only covered my pussy by about one cm when I was walking, and I think that's what he liked. He would look at me sideways and see that he never stopped looking at me. The man must have been over 60, dressed in a jacket and holding a camper. I was a bit drunk and hot so I walked to the edge of the platform like I was waiting for the train and saw him looking at me from behind, so I bent down to adjust my boot and he must have seen everything, it seemed funny to me. The train arrived and I got on in a wagon, there were two or three people sitting and no one else. He sat behind me and did it facing me. As soon as I sat down I realized that the mini skirt was rising and looked like I was only wearing a thong when I went to adjust myself, I saw sideways that the man had his eyes injected into my crotch. It made me laugh and I decided not to adjust it more, just to have my knees slightly apart so you could see through the transparency of my vagina, he kept looking and started breathing heavily. I started posing for him to see everything but make him think it was casual and suddenly I saw through the reflection of the window glass that he had his jacket over the edge and his hand under the jacket making weird movements. It tickled me, I think I got hotter thinking about not having sex and touching myself so I started biting my lips and playing with my face always pretending to be distracted. I apologize my head on the window and I pretended to be asleep, opening my legs a little more. Every now and then I'd look out the window and discover that the guy had taken his cock outside and was jerking off like I wasn't even there. I got excited, my legs almost ready for him to grab me, and the guy gets up, touches me, and says Hey, wake up. I play dumb and he's standing in front of me, still jerking off. Before I can react, he shoots three hot loads of cum that stain my skirt, boots, and part of my thong. The train stops and he runs out. I'm left with 30 minutes of travel, cleaning my cum-stained legs with my hand, then I couldn't stand the smell of his cum anymore. I got home reeking of heat and locked myself in the bathroom. I had one of the best orgasms of my life remembering that and smelling his cum on my thong. Never thought a man could cum so much or that I'd make him do it on a train.