I was 15, but I was actually scared to do it again until I was 17, and that was with the neighborhood runner with a few other dudes a few times (gross, I know......I wasn't last, but I also wasn't first....ever).......Everyone knew who I knocked down in highschool, and it was an accomplishment because she was arguably the hottest chick in school.......But in reality it was a complete awkward failure that only she and I (and hell, probably everyone she told.....I mean I played it up like I smashed that shit but I'm sure she told her friends I was rattling around until I popped in and it was over ) knew about.