Not sure in which category I should post this.

I'm in my late 30's, so when I was in my early teens there wasn't any internet, and I only had 2 Playboy's which I got from a friend, and no other sources of nudity available.

One evening I was in my room reading, and I heard my sister taking a shower... she was 13 at the time, and I was 12... I always had (and still do) have a good and healthy relationship with my sister, but ofcourse I couldn't help noticing that she was becoming a little lady, her breasts growing, etc.

So once I heard her walking from the shower into her bedroom (and closing/locking her door), and quietly sneaked out of my bedroom, and looked through the keyhole... she was still wrapped in her bathing towel, and my heart was beating sooooo fast... and finally she dropped the towel, and I could see her bare ass... and breasts from the side...

Then she opened her closet (turn door closet), and on the inside of the closet there was a big mirror... and wow.. there she was, my sister fully nude, and to my great surprise: her pussy was fully covered with pubic hair. I was really surprised to see that she was already this developed! (Me being a 12 year old guy didn't have any pubes back then).

Before she got dressed again she "cupped" her little breasts in her hands... really interesting to see.

So, after that evening I did the same many more times... peeping really excites me! And I honestly do respect and honour my sister very much, but hey, peeping is such a big turn on to me!

When she was 15, she had her first boyfriend, and again I watched... saw them kissing, and saw the guy feeling up my sister (with clothes on).

That's pretty much all I saw, but great memories!