Last time when I was going home by train I was really horny and since there were only two other people in the whole train, but not seeing me, I started to massage my dick through my pants! I got a hard-on instantly and so I thought I could pull it out. So I did and started stroking! I only stopped at a train station because the doors opened!
After the station the two people got out of the train and a girl about my age or a bit older sat down one row in front of me. I kept on stroking but she must have heard the noise and suddenly stood up and turned around. I didn´t even get to hide my dick! but then she suddenly said: 'just go on' and started to rub herself through her pants and top!
After a while she pulled out her breasts and started to unzip her pants and rub herself harder and started to moan! Then she took out her camera and took a picture of both of us masturbating! I couldn´t hold it anymore and shot my load all over the seat! Then she said 'thanks' got dressed and went away and got off at the next station! What a day!