[ownsville]

If it were genetic other people in my family would have it. And although I'm not inclined to find out what floats their boats in that department *shudder*, I think I'd have picked up on it since I became aware of it in myself.

I have to say its environmental. I attribute fetishes to a combination of neglecting sexual exploration at a young age (ie, when everyone else was finding out what pornography was, I was reading up on tanks and samurai and stuff like that), and the earliest sexual/erotic stimulation a person experiences - context and all.

I think people's sexual orientation and preferences are something that manifests later but are developed sooner. If you can imagine experiences at a young age "setting the ball rolling" subconsciously, it is only later in life that we make the link between activity x and...er, well, xxx.

As ever, just speculating on a hypothesis.