I took vengeance on my sister - I compelled her to witness me give her bf ass fucking

This scene begins with me taking my sister's boyfriend by surprise. I have a plan to take my revenge on my sister by humiliating her, and I start by ordering her boyfriend to his knees. With a smirk, I proceed to give him an intense ass fucking, making sure that my sister witnesses every moment of it. I take my time, enjoying every thrust, as I show my sister that I am in control. When I'm finished, my sister is left in stunned silence, her face a mix of shock and embarrassment. I have taken my vengeance.