First up I'm married but have played discreetly for many years.  If this is a problem to you I wish you well in your search.

I have been involved in the D/s lifestyle for many years, far to many really :) where does the time go?

I am firm and demanding with quite a sadistic streak, all be it a well controlled one.  

I can honestly say what ever your thinking, whatever your fantasy or wishes I have been there and done it.