Suddenly, I have step-sisters with an extremely twisted relationship. The older sister treats the younger one like a toy, and the younger sister is extremely weak-willed and obedient to her older sister! A clear master-servant relationship has formed! Moreover, the older sister is super promiscuous! The younger sister was apparently a model student and a serious girl, but under the older sister's training, she's become an extremely lewd woman! I'm forced to participate in their sexual activities, further worsening their twisted dynamic. Dealing with both a dominant (D) and submissive (M) personality at the same time is pushing my mental and physical balance to the brink. Of course, my penis is being used mercilessly... *Please note that the recorded content may differ depending on the distribution method.*