I finished snapping a few shots of me and looked up to see that same man sitting in a vehicle behind the restroom. He had left the driver's side door open and had one leg dangling out and one leg inside the vehicle. He smiled when he realized I was looking. He began stroking his crotch and I could see that he was already stiff under his shorts. Slowly, he teased himself into what turned into a massive erection. I was surprised that his shorts didn't rip from all that man-flesh; he was huge for sure. I fantasized about that delicious cock inside me and it inspired me to do a little stroking of my own. My clit was throbbing from the day's excitement and I was really needing some release. After a few minutes of him stroking his cock through his shorts, he pulled them down and pulled his cock out, exposing it completely for my pleasure. He continued stroking, leaning back in the seat and focusing completely on jacking himself off while I watched. Oh, I was watching and doing my own diddling as well. I pulled my shorts down because I simply couldn't stand it anymore; I had to get out my dildo. I was so wet, I could hear my creamy pussy sucking my dildo as it went in and out. I could tell he was close to exploding because our pace was the same and I was about to scream it felt so good. As I pounded my pussy with my dildo, my eyes were closed and I imagined his hard cock jackhammering in and out of me, balls hitting my ass with each thrust. I was so close to cumming and I knew it would be a gusher. I opened my eyes and saw that he was furiously pumping his cock with his hand, his balls were clenched high and I knew any minute he'd blow his load. I fucked myself faster and saw that he was watching me too and pumped faster. OH! There it went. Gouts of hot cum shot all over his steering wheel onto the floor mat. At the same time, I came so hard that I was sure I was having a seizure and gushed hot cum all over my car seat. My hand was sticky with it and it dripped off my now well used dildo.
He stopped and, breathing hard, looked over at me with a grin and mouthed "thank you". I knew I'd have a little more clean up to do than that (why didn't I bring a towel to sit on??) but I grinned back and mouthed "my pleasure". He grabbed a towel and wiped himself off and pulled up his shorts, then shut the door to his vehicle, then leaned his head back on the seat to gather his wits.
On my way home, I nearly ran off the road for thinking of my hot hot hot experience at the park. That was so much fun to be watched in public by a stranger as we both got off. I was so inspired to do it again, that I rode all the way home with my tits fully exposed. Luckily for me I live in a remote area so I don't have to worry too much about the law but I think I did entertain the occasional truck driver in the next lane.