Good place to start- I think I started thinking about sex around ten or so but it quickly developed into these weird fantasies that I have no idea where they came from. My fantasies have always included severely dominating females but, then, always included a reciprocal fantasy where I became their victim as well. I always thought it was just a form of justification or keeping things equal. I have never doubted the women were better as some things but then I also think men are better at other things. In all, I believe we are all humans first with equal ability and authority. As I've matured, I think less about dominating women and more about serving them. But that also comes from a strong sense of who I am and belief in myself. I think nature was kind to me so I don't have to prove anything, so I can afford to do what ever I like. My wife really likes my submissive side but that isn't easy as I constantly top from the bottom. I should also add that I was never really into any kind of physical bondage or violence so much as mental games and humiliation. That's what has always lit my fire.
As far as training, my wife and I have "played" about every role we can think of. And that's why I'm here, to try and learn more and new things. We will always be monogamous but we don't mind trying anything new between the two of us. It's all fun when you can share it with someone you love.