Karen, my father's new wife, is practically the same age as me. Suspicious about their age gap and fearing she married him for money, I began closely observing her behavior. One night, a month into my surveillance, I quietly sneaked into her bedroom and caught her masturbating. In that instant, my sadistic desires were awakened. Taking advantage of my father's absence, I cornered Karen and began training her to become a submissive sex slave, forcing her into the role of my obedient sexual servant.