I do believe there is a siginificant difference between simply having an interest in kinky sex and the lifestyle. Actually even some vanillas at times have a taste for kinky sex. To me the lifestyle encompasses so much more than that singular, albiet enjoyable aspect. I have experienced some very deep and meaningful experiences within the lifestyle that didn't involve anything sexual. Whether we understand ourselves to be Dominant, submissive or Switch, I think it is important that we grasp what we are and how that nature contributes to who we are if we wish to consider ourselves a part of the lifestyle.