I can date one incident to Summer when I was nine. I was the victim in a game where I was held down and taunted by bigger boys, and although I put up the expected struggle, I knew I was geting a thrill from it.
Before I was 12 I tied up a girl of 11 in 'cowboys and indians', and knew how erotic that was, and what power that gave me.
In all my life, through girlfriends and two marriages, I felt the need to keep that aspect just below the surface, but always there.
I voted for the fourth choice, but never having had the chance to be dominant, don't know whether I could be both.