I engage in sexual activity with my youthful stepmother as she performs yoga and fitness

I recently got married and my wife brought home her stepmother to live with us. I was surprised to find out that she is quite the fitness enthusiast and yoga guru. While I was helping her put away her gym bag, I couldn't resist the urge to check out her impressive physique. As it turns out, she has a pretty big ass that is just begging to be worshipped. After a quick shower, I decided to indulge in some sexual activity with her. She eagerly took off her yoga pants, revealing her big, natural tits, before dropping to her knees to give me a blowjob. I was completely enthralled by her impressive skills and the sight of her big ass bouncing as she rode me cowgirl style. The whole encounter was quite the eye-opening experience for me, as I had never experienced anything quite like it before.