First Dominant characteristics started show up very early for me. I would try to take charge around 3 or 4. My mother told me my kindergarten teacher said I was trying to boss her around.

The first thing that could fall under "BDSM" was when I was about 8. I had a kind of scene with a girl I played with. I told her I was going to teach her how to masturbate (except I didn't know that word yet). I didn't touch her, I just told her what to do. LOL