Me (M18) and my gf (F18) were on our way to a large party with all our friends. We had done things in the past but nothing too crazy. I pick her up and she’s wearing this amazing dress, it’s a pretty long car ride there - so we start driving and jamming to music. A little while in she said “look what I’m wearing underneath” and she pulls up her dress to reveal a beautiful thong. I should have made a move here but I didn’t, instead I said she should play with herself so she slipped down her panties and started rubbing her clit. At red lights I put my fingers in and feel how wet she is. We get to our destination and have a good time, we left as early as we could and the moment we got on the back roads she unzipped my pants and just started going at it. It felt so good I could barely drive - I wasn’t even fully hard it was just the thrill. This went on for a while till I pulled over at a gas station, and fucked her raw. Her cum and squirt went everywhere but it was amazing. Ask me any questions :)