i was about eighteen when this happened. i lost a bet with some of my friends and i had to do whatever they said. well, we were all going to a waterpark that weekend. so, my friends thought it would be funny if i wore a speedo the whole time that, considering how tight it was against my crotch, was probably way too small. anyway, i spend the whole time in a skimpy speedo. i got some very strange looks from the other people at the park. not to mention that everytime i went down a waterslide my speedo would get messed up and my penis would be hanging out of it. Plus, the material was incredibly thin so it was pretty much on display the whole time. im prety sure the girls in our group were the ones that came up with the idea. the worst part was that i got slightly aroused at one point and, in a thin skimpy speedo, it was impossible to hide and kept poking out of the speedo. it was pretty embarrassing at first, but after a while it was just uncomfortable. thinking back on it now though, it was pretty funny. and i got my friends back.