I do. I think I was 11 or 12 years old after doing the math based on when my mother died and my paternal grandmother stayed with us for a year. No question why this was such a memorable experience in a young boy's life, what is unclear is why it happened under decidedly unsexy circumstances.
I blame it on the mechanics of positioning. I clearly remember lying "prone" (on my stomach, for those of you in Rio Linda), watching an episode of an ABC drama popular at that time called "The Young Rebels", which was about a family during the Revolutionary War! I do kind of remember having a thing about one of the blonde daughters, but Jeez, you'd think it would have been a naked picture of a woman instead of someone in a long dress or pants!
I didn't know what had happened at the time, I only knew that what ever it was I wanted it to happen again, soon, and often! Have spent the intervening years chasing the same thing, many times to the detriment of myself and surely of my wallet.
Please share your experiences. Hopefully someone will have a more depressing story LOL.