I have never had murder fantasies. Ever.
I like teasing a man and edging him.
Really... anything that heightens the orgasm. Pain, suffocation, shame, humiliation, does not do it for me...
Although I had this incredibly bizarre period in my life where dreams of dante's inferno were prominent. Things like being strung upside down on a conveyor belt to be castrated and persecuted. It was oddly erotic. Unfortunately, pain in real life is something entirely different.
Oddly enough, there is an ancient Bhuddists temple in sri lanka which depicts more or less exactly what my dreams were. I found the imagery years after my dreams. Maybe my memory is scrambled, or maybe it is entirely a co-incidence... my temporal lobe, hey maybe it is entirely non-linear, and I am absolutely crazy...
As for hurting, persecuting or humiliating another... yeah, that porn is hot... however, I couldn't bring myself to do that to another person on a one-to-one basis... it just sort of creeps me out what could become of that persons mental state of mind...
Seeing someone get wrecked is basically what turns me on... so... I prefer thinking of wrecked in terms of heightened orgasm, rather than pain or suffering... who doesn't?