My appetite for a bit of everything all started in my early twenties, id been about a bit, predominantly straight but with a little fantasy of being bi every now and then. My chance to try came by surprise one morning on my way to the train for work, i nipped into the station toilet for a quick pee and whilst i was standing at the urinal an older gent came in, stood next to me and started to pee nothing unusual there apart from the toilets were quite big and there was nobody else in there, i done the usual and stared at the wall, but out of the corner of my eye i could see that this gent had a quite a big cock, out of curiosity i felt i had to take a look and i wasn't mistaken it was big. I now found myself staring at this guys cock, i tried to not keep looking but he knew what was happening and stepped back at bit and held his cock up for me to see, i felt rather inadequate with my cock still out in my hand. He was stood right in front of me with a cock that must have been 8 or so inch's just sort of offering me to touch it, i still had my cock out that was to my surprise getting harder by the second. I reached out and ran my fingers along the top of his cock, this was the green light for him as he nodded to go in the cubicle, i went in first and as i turned around he came in and locked the door. Nothing was said to begin with he just took my hand and placed my fingers around his cock and still holding his hand on mine proceeded to wank him, his cock felt really heavy as i wank him and once he'd got me into the pace he liked he released his hand and grabbed my cock really firmly, he gripped my cock tightly and wanked me really hard and fast for what seemed like about 30 seconds before i came he had to put his other hand over my mouth to stifle my moans. He was far from finished though and with his hand over my mouth and still gripping my cock he managed to sit me down on the toilet, he pushed my hand away and took hold of his cock, i knew what was next, as he pushed his cock toward my face. His cock was hard, veiny, strong looking and there was a slight manly musky smell as he pulled his foreskin back and wiped his wet tip around my mouth, id never done this before but intuition seemed to take over. I open my mouth slightly and poked my tongue in his japs eye tasting his precum and licking around his helmet trying take my time and do my best but he had other ideas and with one hand on the back of my head and the other wanking himself he forced his cock into my mouth, i couldn't open my mouth wide enough, i was lucky if i took much more than just his helmet in but it was enough for him as after only a few minutes of wanking into my mouth and me trying to keep up he came and when he came it surprised me how must force he came at, the first couple of spurts made it into my mouth which made me gag then the rest down my front then when hed finally finished he wiped the last around my mouth. As he pulled some toilet paper out to wipe and tidy himself up he said his name was Johnny and that was fucking fantastic lets do it again sometime soon, I nodded in agreement and he left. I locked the door as he left and sat in there for a few minutes a bit stunned by what had just happened, i felt bloody wonderful though, as i stood up to sort my self out most of his come was down my shirt and id have to go home and change and be late for work but in a moment i scooped it up in my hand, wiped it around my cock closed my eyes and had a wank over what just happened. It turned out Johnny worked at the newsagents on the station and we'd meet up a couple of times a month for years, on the really rare occasion he'd suck me off instead of just wanking me off, in his words he said it didn't feel right sucking me off as he was married.