Sister slave

In a twisted sense of power and control, a man forces his step-sister into a life of servitude as his slave. He denies her freedom and treats her with utter disdain, reducing her to performing degrading tasks such as cleaning his filthy messes and pleasuring him sexually whenever he desires. Despite her protests and pleas for mercy, he shows no remorse, viewing her as nothing more than an object to be used for his perverse enjoyment. The man's sister endures this cruel treatment out of fear and helplessness, her soul slowly breaking as she realizes there is no escape from the nightmare she's trapped in.