I am a sub by nature. Nurture may also be a part of it, but an almost irrelevant part. You see, from a VERY young age, I've loved being the victim. In a play fight, I would always exaggerate the extent of an enemy's blow and throw myself into a wall. I absolutely loved being dominated, but this was at very first more emotional than sexual. When I began thinking about women at a very very young age, the thoughts would be of her power, and her ability to rape me. My emotional and physical vulnerability are sacred to me- I am sensitive mentally and built very scrawny/weak. My vulnerability makes me feel in a way sexy, although in terms of appearance I believe myself to look odd. I feel sexy because I feel helpless: I am girl food.
When I began understanding my submissive feelings, I assumed women liked this sort of vulnerability and were turned on by it. For the most part, I was very wrong. The vast majority of women are repulsed by these things, and dommes are very rare. Also, untill recently, I didn't believe I was into s&m... I was kind of a believer in reverse vanilla, with a weak man and a strong woman on top. Overnight I came to embrace chains, whips, strap ons, etc... And will like to try again bondage, though that is rough ground for me.
I am not a switch. I have absolutely no dominant tendencies. I'm so vehement in my submission that if I had a domme, even for a serious relationship, I'd like her to fuck dom guys whenever she needed it rough, because male dominant sex is something I cannot do. I'm clumsy with it, but more importantly, it destroys me emotionally.