Pee On A Bus
I had a similar experience of peeing in the minibus. There is a fortunate part and unfortunate part of the story. Firstly, I was drinking a lot of water as it was a hot weather. So, in the middle of the highway the pee pressure was getting hard to handle. So, I emptied the plastic bottle by drinking the remaining water. Then I pulled out my cock through the zipper and put it through the bottle mouth. Then I peed. However for some reason, my cock got hard and it was stuck to the mouth. I could not pull it out and I panicked. My cousin noticed it an began to laugh. I tried to keep it down and he was having trouble holding his laugh. I tried thinking about weird things to make it soft. But each time I tried to pull it out it would get hard again. It took me a few minutes to get myself soft and I could pull it out. My cousin teased me for a month for this.
Just read it in the confession section. It was funny though. Penis sure gets hard and soft at wrong times. In public, getting a hard on is humiliating but during sex, getting soft is humiliating.