Thank you so much, Chalsia-- your words make me a feel a lot better about my fantasies.
I think the appeal comes from the emotional responses of the characters. Even if the emotions and tortures themselves are revolting, the strength of the emotions is where the appeal lies. There's something absolutely captivating about people dealing with fiendish adversity.
Once again, thanks. It makes me feel good to know that my stories bring pleasure to women. How can a man not be happy to know he's pleasing women? =)