ITakeMyVitamins: You know what I realize is that, now, knowing I'm rather well endowed, so many of my earliest 'penis memories' make complete sense.
When I was younger, I would take frequent boat trips with my parents. We live in the States and would often take the boat to Canada for the weekend. If there were marina showers, I would use these instead of the small one on the boat.
Now, in Canada, unlike in the States, many of the marinas had what I could best describe as community showers. There were seperate facilities for men and women, but the shower was one large room with probably 7 or 8 individual stalls. They were arranged such that everyone undresses and leaves their clothes on a long bench on one side of the room and walks the 15 feet or so to an open stall completely naked, of course.
At the time, I was between 10 and 12-years-old. To be honest, I probably didn't even know what a penis was for (except peeing), let alone have any idea what size was 'large' or 'small'. I do remember wondering, however, why every guy's penis was SO MUCH smaller than mine. This seemed so unusual! I mean, even though I was young and totally clueless about cock size, it seemed strange that grown men would be dwarfed by a child.
Inevitablely, I would innocently look at all the male members. I felt no shame, and had no idea why I would make them feel uncomfortable. Now, I remember, and understand, the looks of embarassment on their faces!