Public convenience

By the age of fourteen I was already actively gay.
My slender smooth figure and girly looks meant I was popular, particularly with older guys. This was fine by me, as that’s what turned me on. I loved being told what to do by big hairy guys, old enough to be my father.
I had a taste for cock and wanted more, so one summer’s day I decided to find some.
I had heard that a public toilet in the town was used by men for cottaging and had already been there a couple of times in the hope of meeting someone. So far i’d had no luck but had read the messages scrawled on the walls of the cubicles. Apparently there were a lot of men looking for gay sex and I couldn’t wait to get in on the act.
This day was going to be it. I was determined.
I felt incredibly horny as I walked through the town, my stomach doing nervous sommersaults as I thought about what may happen. Although it was nearly four o’clock the sun was still hot, so I unbuttoned another button on my school shirt. The school uniform rules were relaxed in summer, so all I was wearing was a light cotton shirt and slim fitting grey trousers, my bag hanging over one shoulder. I had been told before that my uniform was a turn on so I was hoping it would help today.
The toilets were on the edge of a car park behind one of the main streets in the town centre, so I made my way between the parked cars. It was about half full with just a few people around, making their way to and from their cars. I took a deep breath as I reached the door and walked in.
There was nobody there. I walked over to the urinal and stood at one end. It was the type that’s all one long urinal, with just a wall of brushed metal in front of you. My dick was only small but right now it was about as hard as it could get and I wasn’t sure what to do. I had thought I was going to stand and pretend to pee for a while until somone came in but I wasn’t sure this was such a good idea when I had an erection. I thought for a moment and decided as i’d already come this far I couldn’t back track now. Besides, even when fully erect I was still short of four inches and it wasn’t very thick so I could probably conceal the fact it was hard with my hand and clothes.
I pulled my flies down and and freed my little dick from my underwear. It may have been small but it was rock hard so with a quick glance over each shoulder I started to squeeze it and slowly stroke it. That would have felt good any time but knowing that anyone could walk in at any moment added a new thrill that was making me tremble. I stopped stroking when I felt I was getting too excited and took some deep breaths to avoid cumming.
I can only have been there for a little over five minutes when a man walked in.
He was probably in his mid forties, with wiry dark hair flecked with grey and hard green eyes. He was tall, more than a foot taller than me, and stocky.