At 11-12 I played some of those silly kissing games and kissed a couple of boys that way, one with a little bit of tongue but it was quick and kinda gross.
I was 14 when I first started dating and was properly kissed ;-)
First kiss was in 1st grade. First kiss that made me melt and become undone, I was 15.....
My Mom and my Grandmother kissed me as far back as I can remember.
I don't know.