I think even sessioning once or twice a year is a big step -- I imagine the % of guys who go to a professional dominatrix in their entire lives is pretty tiny. Which leads me to believe that even if they only manage to session once or twice a year, most are at least watching bdsm porn and having bdsm fantasies year-round -- they had to have pretty strong impulses and fantasies just to break through their inhibitions to session even once. I certainly did, back when I was only seeing a dominatrix once a year.

These days, I kink pretty often. My mistress controls everything from when and how I masturbate, to how often I can go out drinking with buddies, and even our casual almost-daily text or phone conversations often turn at some point to some new toy or activity, even if for just a few seconds.