just a thaught but perhaps teh kinda tuff your talking about is reserved for the wierd or the severley burned.
personally if i see real pain, not like outch its going in, its a real turn off. i hate the idea of it being available to the young, who will see it as an ok way to treat women, but then a controlled response is better then them acting out he fantasy on an unwilling subject.
on the whole, remember not all guys like stuff like that, just liek all women wouldnt want to see a mans penis chopped up and fed to him. i use the term "all" liberally. but i digress, that is all i have to say today.
peace.