Going crazy in a train SeXStoRY

This is by far the craziest thing i ever experienced. I'm not a big storyteller so there won't be many more, but this one is worth it. Let me tell you! It happened in the summer of 2010, in Holland, where i live. I went on a date with a very nice girl in another city. I travelled to her city to join her in a nice restaurant/pub. It was a great evening, we laughed a lot, but somehow we both knew it was a one time date. She was reaaly great company and i really hope that she found the one she was looking for. After our goodbyes, a hug and three decent kisses on the cheeks, I had to run to catch my last train to home. I catched it, thank god! I walked through the train to find a quiet spot where i could think about the evening, and about the crazy phenomenon called dating. There were 4 girls in their early twenties, sitting together and one spoke to me. "Where is your girlfriend? Did she catch the wrong train?" And they laughed. I looked at them and recognised 2 of them. They were drinking in the same pub and were quite noisy, that's why i noticed them. It's one of the big bars near the central station, so it wasn't a big coincidence, but nevertheless remarkable. I told them about my date and that it was unsuccesfull. They told me they were going to a big house party in my city, and they were quite influenced by alcohol and maybe xtc, i'm not an expert about that but it certainly looked that way! The trip would take about 50 minutes, so we started talking about this and that and one of them pulled down her top to show the rest of us her new piercings in her nipples. I really love pierced nipples so i was quite impressed! And i told her that it was very sexy. "Do you really love it?" she asked while she grabbed my crotch and she rubbed for about 10 seconds over my penis and balls. I was shocked at first and froze, while her friends were rolling over the floor laughing about the situation. That 10 seconds made me quite horny to say the least! Just as she sat back in her seat and wanted to put back her top i surprised myself by saying "Please leave them like that, i really love to see them!" and i opened my pants an pulled down my pants and underwear to my knees to show the effect she had on me. "You see?" They started laughing again and luckily the nice girl left her top down. "I know guys like me! You show me how much you like me! Play with yourself!" she screamed out. The other girls repeated her, "come on play with yourself, show it!" I looked around to check if somebody has entered our wagon since there was a station just before, but it was a quiet night and it was all empty. My horny feeling really overtook me and i'm a bit of an exhibitionist i have to admit. When i think back about it i really ask myself "was i really doing it?" But i was! I stripped naked at that moment and started masturbating while looking at the pierced nipples and i felt so great. The girls acted like real cheerleaders and talked me through it, like "go ahead", "grab those balls", "shake it back and forth", one of them really couldn't stop laughing. The one with the pierced breasts was playing with them and looking at me, knowing that she was in control. "Do you want to play with my dick? If you want to suck it i won't stop you." i said. "No, i'm quite happy with my titties over here, you just jack off" she said. "OK", and i did. When i was about to come i got up from my seat, walked to the little table against the window, right between their seats, and i came hard, really hard! It made my top 10 orgasms for sure! One of the girls grabbed my ass, while i was shooting, that may have helped it! The pierced girl was already fully clothed again, though they were all very sexy dressed. And they just kept sitting there, with my cum closeby on that table! The pierced girl was taking a picture with her cellphone of the cum and she showed me that she took 3 picture before, while i was standing over that table coming. She took another while i was putting on my clothes, but i was to horny to care about those pictures being taken. I kept my pants and underwear on my knees while i was sitting again, i just couldn't care! We kept talking/making fun all the way and 5 minutes before the train arrived at the final station, i just started masturbating again and i came in the iron bin beneath the table at my side of the train. They yelled and cheered and i was photographed again. When we got out of the train and walked to the pierced girl grabbed my crotch again while we were standing on the escalator and said "nice show!" I said "thank you, i loved it!" and i couldn't resist saying "please don't put my pictures on the internet." "No it's just for good memories sweetheart" she said. Untill now i haven't seen them anywhere, and i wasn't approached about it at any time. That was a bit of a releaf to me. I'm a bit afraid about them coming online in the future, but on the other hand, i get a little bit horny thinking about it and about the experience all together. While tiping this i was naked, i'm naked most of the time when i am at home. During the story i was typing one hand pulled my hard dick and before the end of the story i came again. Oh my god, this experience will get me going everytime i think back about it! I hoped you enjoyed reading it, i know i enjoyed reliving it again!