I was 10, but I hadn't discovered masturbation by rubbing my clit until I was 16.

13 i think

......7

I was 10 when I found out what it was..but I had known some things felt good before then. I thought it was wrong to touch myself down there because of how I grew up, so I didn't explore on my own until then.

Well, I knew what it was when I was 7 or 8, but I don't think I really starting doing anything that could be considered masturbation until I was about 12.

I was 10 when I started.

I think I discovered it when I was about 15 years old when I found out. I had a vague understanding of it years prior however.

I was 14, which seems late compared to the others I've talked to about it.

...maybe 13-14 or so? I was dabbling with pencil erasers and modified toothbrushes a few years before I ever got my first toy so it seems like it may have been around then.
I also remember one time when I was about 11 or 12 I was showing a friend on the school bus a little vibrating back massage thing I had found (with the shape this was, there's no way in hell it was a sex toy.) and it fell into my lap...I recall thinking it felt funny "down there" but not giving it much thought at the time.

Well, I had my first orgasm when I was 12 but I masturbated for years before that.