It started one fine summer afternoon shortly after I'd met Sophie. We'd had a couple of beers while wandering about the city, and of course eventually we had to find a toilet. Not a problem, we just went to the nearest McDonalds. There was somebody already in the only toilet, so we had to wait a while, fretting and joking about who was in the most need and would get to go first. When the door opened, Sophie and I both snuck in together. We usually did that, officially to avoid paying twice, but mostly because she always wanted to and I found her interest quite a bit exciting.
Once inside, I quickly pulled down my pants and sat down to pee. I'd made the mistake before of letting her go first, and I wasn't about to repeat that. She would hog the seat to torture me, wipe herself excruciatingly slowly, and generally tease me. And when I'd once stood to pee in front of the seat, she'd slid in right under my nose and stolen the seat. So this time I beat her to it. She stood in front of me and watched with a pout as I happily relieved myself. Then she suddenly did something that completely took me by surprise. "You're no gentleman" she declared, stepped out of her panties, hitched up her skirt, straddled my legs, sat down on my lap, facing me, and started pissing on my crotch!
I was totally unprepared for anything like that, and didn't know what to do, but after just a little while, I found the feeling of her warm pee over my cock and balls strangely exciting. My cock started stiffening quickly and as it rose, it grew right into her cunt! It actually entered her while she was still pissing over me, and I started making whatever little thrusts I could manage, still with her golden shower flowing. She went absolutely crazy, humped me wildly for just two or three thrusts, and then collapsed in my arms, pussy muscles spasming around my rock-hard cock as she orgasmed.
When she'd caught her breath, she rose, leaned forward with her hands on the wash-basin, stuck her ass out and smiled invitingly. I stood up and entered her from behind, holding on to her hips and humping fiercely. She was so wet I could hardly feel any friction, but I was hotter than I'd been in a long time so it didn't take long before it was my turn to come in an explosive orgasm. I shot load after load into her, so that when I was finally spent and pulled my shrinking cock out of her, a long stream of sperm and cunt-juice ran down the inside of her leq.
Giggling, she grabbed some paper towels and started wiping herself off. It was at that precise moment somebody started banging on the door and we realized just where we were! We hurried cleaning up, but the absurdity of the situation soon got to us both and by the time we were ready to open the door, we were laughing out loud! As a final gesture, as we passed the irate McDonald's employee in the doorway, Sophie dunked her rolled-up panties in the waste basket, before we continued our happy way.
We continued our walkabout around town. Suddenly, Sophie declared that she wanted to have a picnic, and dove into a convenience store. She got some food, a six-pack of beer and a pack of baby-wipes. Strange.
She dragged me on a bus to a big park where she guided me to a very quiet corner. It was a bit of a hike, but I could see it was worth it for the peace and isolation of the spot. She told me she went there a lot because it was "one of the few spots where a girl can have a bit of fun without unwelcome attention". And with that she took off the rest of her clothes, lay down naked on the grass, and popped open a beer!