When I see a pretty woman on the street I imagine how I would tie her to my bed, strip her naked and torture her (mainly whipping her). I imagine her cries of pain and how she begs for mercy. These fantasies turn me on. I derive pleasure from the idea of inflicting pain on helpless young women and make them suffer. Is this wrong and what can I do? I feel bad for these fantasies on the other hand I really would like to torture a tied woman. But I have never done anything in that direction.