A mature woman with a large posterior penetrated me on a chair when she discovered me pleasuring myself

I was lounging on a chair, indulging in some self-pleasure when a mature woman with a rather large posterior happened to walk by. She couldn't help but catch a glimpse of my throbbing member, and before I knew it, she was on top of me, her dress hiked up, her feet planted firmly on the floor. The unexpected turn of events didn't faze me, and I was more than willing to continue our erotic dance. Her ample derriere, a sight to behold, was now pressed against my hard cock, and she began to ride me like a seasoned jockey. The intensity of our encounter was palpable, as she skillfully navigated my throbbing member with her tight, inviting ass. The thrill of being caught in the act, coupled with the pleasure of being penetrated by a mature beauty, made our encounter an unforgettable one.