I had an ex-gf squirt or something. She was riding me on top and had an orgasm and I thought she was peeing on me as it was a fast, heavy stream of fluid running all over the place and soaked my crotch region. After she left the room I smelled the very large "puddle" on the bed and it had almost no odor at all, did not smell like urine by any means.
It shocked me, I was also very turned on during and after her, well, flood.
I'm between 5.5-6 inches (don't know why its bigger sometimes) and not thick, and I often feel inadequate and even sometimes angry I wasn't born bigger and almost feel incomplete and not masculine. When I was 19 a girl I cared dearly for got me into bed and then complained and whined that I wasn't big enough and then I had trouble staying hard and she laughed at me and 8 years later I still obsess over it and even sometimes feel very jealous of guys with large dicks. It may sound stupid, but my lack of size really does eat away at me sometimes. I have even avoided sexual contact a few times because I felt the woman was expecting or hoping I was large and I could not bare disappointing her so I just avoided sex completely in those situations. A good friend of mine is of the female gender and she once told me something like "anything under 8 inches is useless" and that scared the hell out me, my heart sank when I heard that, almost a punch in the stomach it literally made me get nausea.
Anyways, some people don't care about size but for me I feel it is one of my flaws. I wish it didn't matter but it does.
EDIT: felt a self-conscious need to clarify: I had trouble staying hard after she complained about it, during that encounter, I don't have any trouble staying hard any other times. Well, the only other time was when an ex wanted to try anal sex, I was excited right up until I had to actually put it in there and my hard on died a quick death. The idea of it was far more appealing than actually going through with it (we had no condoms) and I did not want any foreign substance anywhere near my penis hole lol.