I was 14. We met under the stone bridge by the sewage treatment plant by accident (he was taking a dump under it) and just sort of knew, even though we'd only known each other for, like, five minutes, but he was the only other one like me around, and we both kind of immediately sensed that, our gay-dars twanging like crazy. It was the most casual-casual sex I've ever had. And, after him, I never did it again. Of course, the brutal sextuple rape may have had something to do with that.
Not that I'm bitter.