I don't know for sure, but I think it was around the age of 13 or so. I remember that it came a kind of a sudden shock later on that I wasn't attracted to girls like all my friends seemed to be and that I just stayed attracted to boys younger than me. Sometime during that same age I believe, I remember that I found the only book about sex my parents had, "What You Always Wanted To Know About Sex But Were Afraid To Ask". It seemed like a pretty modern book at the time but what they had to say about Minor Attracted Adults wasn't very good. I don't remember exactly what it said but it did confirm for me that there were others out there who were like me. However, they were adults (according to what I read) and I was still a kid. Kind of confusing and more than a little frightening.