(19M) lost virginity in a bathroom break with 19F

Last year I was going to an event and the girl I had been chatting up for the past couple weeks asked me if I wanted to hang out before I went. She was a totally mean girl with probably more than a few bodies and was super short but she was also way too hot, and I had been feeling pretty lonely for a few months prior. So, I met up with her and we spent the day making out in a park, till she accompanied me on the train ride to the venue. We had chatted jokes about sex the night beforehand and needless to say, we had all sorts of thoughts flowing through our minds. On the train it was fully empty and we sat down in a seat in the corner of the lower carriage and she kept rubbing me around my crotch until she finally placed it over my now VERY hard dick. Eventually she got on top of me in a dryhump sort of position and we would make out (with some amateur grinding) everytime the train started moving, stop when it reached the next station, wait to ensure nobody came within eyesight, then continue. At some point we realised we had taken the wrong train and we got off the next station, which ended up being a quiet place with nobody around. In this moment I started realising that I really may lose my virginity today. We sat down on a seat grinning about what we had just done until she finally burst out and blurted; “Do you wanna fuck?” I was flustered but still erect as ever and there wasn’t much more time to kill because I did still have to go to that event, so I said yes right away. We were horny to the point where we would choose the public bathroom, only to realise the disabled bathroom at the train station was locked. I almost gave up, but it didn’t phase her and she looked me dead in the eye and told me she’d do it in the male bathroom so long as no one was around. I knew how illegal it was but it just made it feel even more exciting. I checked no one was inside, then i brought her into the cubicle. She wasn’t a virgin, so she wasted no time getting me to sit down on the toilet (on the closed lid) and fished out my throbbing cock. She saw it and smiled, telling me it was thicker than anything she’s seen before. I was insanely shy and watched as she pulled out some condoms from her wallet, tearing the packaging open and placing it on my dick until realising it was too wide for the medium sized ones. We swapped it out (she really came prepared) then she undressed and wasted no time getting on top. The first penetration was so surprising that I hardly even processed that I was inside her. She let out a moan and started riding me, till I almost came in minutes. I stopped her and told her it was my turn, standing up and asking her to bend over for me. I can only remember how amazing it felt sliding into her, as she started shaking and pressed her petite hands onto the wall for support as I thrusted in and out. Soon, she started getting louder and her voice started getting higher, and I could tell she was close. I couldn’t take the heat anymore and I came too as she shook and I could feel her warmth whilst she was cumming. It felt better than anything I’d ever felt. We experimented with a few more positions and I loved watching her face as she came. By the end of it my balls were almost as sore as her pussy, and we couldnt stop smiling at each other for the rest of the day’s trip. I don’t talk to her anymore but she told me it was the best dick she’d ever had, and a first time I’ll never forget.