Breaking Baddies Balls

[Justinian]

My rich character hires her as an employee at a god awfully rich corporation. He is twenty six years old, and has been a horrifyingly sadistic rapist and torturer for ten years, getting away with everything. The idea is he rapes/attempts to rape your character, and she gets revenge on him by raping/castrating and penectomizing him in response. She dreads being sent to prison or killed in retaliation but he shows up, medically restored and asks her to continue torturing him. He has found out he can mentally reprogram himself by reliving through the brutality until it rewires his brain.