I saw my first porn when i was 19.I kiss my first girl at around 25, touch my first breast at around 28, and finally get laid at 34.
Ooh, I wanna play too!
First porn: 6th grade (11 or 12)
First kiss: Depending on how you count it, 6 or 7 (first grade), or 20
First breast: 20
First lay: 20
And of course, the other question is, in retrospect, what would you have different, if anything?
Personally I wish I had done some things differently in HS, although almost none of them are sex-related (though many are relationship-related). I was ready for porn by the time I "discovered" it, and it was a really useful way to explore my sexuality in a safe context, which was good, so no regrets as far as that was concerned. Wouldn't have minded having my first lay a few years earlier, but I can't complain too much about how things worked out. I was ready by that point, and it was a good and memorable experience.