On the way home from work I have to walk across a field and down the back of some houses and a school which are all in darkness. One night I needed to take a piss when I was walking behind the houses so I stopped near some bushes and took a piss and then was feeling really horny and decided to carry on walking with my cock out. After about a minute I was rock hard. I've never been that small for my age at eight inches, then I heard a moped bike coming back down the track. I tried to hide my hardon with my jacket I was carrying, but I'm sure the teenage kid riding it noticed it.
This made me even more horny and I couldn't resist anymore and started wanking. It didn't take long before I came and I shot an amazing load all over the path. It was great.