You make perfect sense
But please don't get me wrong, when I say perverse all I'm implying is that that living such a life deviates severely from social and communal behaviour patterns which are seen as normal and favourable in our society. Although you understanably assumed so, I am not making a moral judgement and I don't wish to criticise.
however, I am concerned about the dangers that such a lifesyles may have to the individuals that follow them. I just can't see how a person that dedicates his or her life to beeing a slave to another person (and merely due to his or her sexual urges) could have a fulfilled and loving life. How could this person ever develop respect for his/herself if his/her very partner delights in not showing any. For this and other reaosns I would call a intensive sadomasochistic lifestyle unhealthy.
In regards to Tom's rquest, I am afraid I have no definate answer for what the purpose of life is. I suppose each person may has its individual purpose and responsbilities. Nevertheless, I believe that our sexual urges can influence our way of thinking and can make us act contrary to what we believe or know is right. For that reason I don't think that we could possibly find the meaning in our lives by mindlessly obeying to them and for that reaosn I Personally think that sexual fanatsies are something we should act out with our partners in our bedrooms, and not in our socal life.