My ex-best friend acquainted remains subservient to me

After a heated breakup, my former BFF found herself in a precarious situation. She was bound by a contract that left her at my mercy, surrendering her body and soul to me. As a result, she became my submissive plaything, always ready to please me with her ample assets. The first time we linked up, she was eager to demonstrate her obedience. She eagerly showed off her impressive ass and allowed me to explore her with my hands. I took advantage of the opportunity, caressing her curves and tasting her sweet nectar. Then, she eagerly pleasured my hardened member, her expert lips working wonders. I reciprocated by satisfying her with my fingers before taking her in a passionate missionary position. Later, she assumed the doggystile position, allowing me to ravage her once more. Despite her attempts to resist, I maintained control, even resorting to a firm slap. Throughout the encounter, her boyfriend remained silent, a spectator in his own home.