Do we dare? piss and run away quickly!

My girlfriend and I were on our way to the beach to soak up some sun. All of a sudden, we both need a piss. What could be better than the van of a guy we don't like? But it's a bit tricky. He mustn't catch us because he would definitely report us to the police and we're not in the mood for that. But the attraction of the forbidden is greater - so we jump onto the loading area and seethe for all we're worth. A lot of really cool piss shoots out of our pussies but we have to get away really quickly! It gives us a real kick but we have to enjoy it later, now it's time to get away quickly!