I went to an amusement park last weekend. It was a three hour bus ride from my home. At the entrance to the park there were public toilets, but as my need wasn't great I didn't use them but went straight into the park. It was a warm day and soon I needed a cool drink. I bought a large iced drink from a stall and consumed it as I looked aroung. There were already a large number of folks there and most of the rides had a queue already forming. I joined one queue and found that I had about a fifteen minute wait for the ride. As I stood there I was beginning to feel the need to pee, but it wasn't too urgent so I thought that I would go after the ride.

When the ride ended I looked around for the toilete, but as I passed one switchback ride I saw there were very few people waiting to get on so I thought that I would take the ride first. As I was strapped in the need to pee was getting much stronger, but still manageable. The ride accended to quite a height and then suddenly plunged almost vertically down. The shock made me lose control and a spurt of pee escaped. As I had no panties on under my short skirt it ran down my leg.

The ride ended and by now I was totally desperate. I managed to control my bladder until I reached the toilets, but there was a long line of women waiting to go in. I was standing with my legs tightly crossed, but suddenly another spurt escaped, bigger this time, and it took a supreme effort to control myself. This was only temporary for within a couple of minutes, in front of everyone I totally lost control and completely emptied my bladder. In an attempt to keep my skirt dry I pulled it up. Everyone could see my naked pussy as the pee gushed out.