When violence becomes what you require to achieve orgasm.
I don't like porn (you do you guys it's not for me), but I did see a girl on Reddit who used to do gangbangs that her husband would set up for her, and she would post the photos and videos, and she has OnlyFans and what all set up. Fine, I don't care about sex work, it's work. But she looked so dead eyed in the photos, and I watched a bit of a video where she was having a gang bang, and this guy in a balaclava just came up to her and began hammering away, and she just knelt there, looking as detached from it all as if she was waiting for a bus or scrolling on her phone. I'm reminded of the serial killer Karla Homolka, whose crimes took place in my home town, who was a willing participant in the terrible things she and her husband did, but apparently in sort of a flat detached way by and large, just letting it happen apparently without a lick of conscience or self respect or shame, and it's just awful to see someone let themselves be used like that for the gratification of other people.