My mother-in-law shares her underwear and makes me pleasure myself to her voluptuous figure

I've always had a thing for mature ladies, especially my mother-in-law. She's a voluptuous milf with a killer body and a fat ass that drives me wild. One day, she caught me pleasuring myself and decided to join in. She teased me with her underwear, making me imagine her in it, before bending over and giving me a view of her round, fat ass. I was hooked. She knew exactly what I wanted and how to get me going. She teased me some more, showing off her curves and her fat belly. Then she got down on all fours, presenting her fat ass for me to enjoy. I couldn't resist the urge to stroke myself while watching her, lost in the moment. It was a homemade fetish fantasy come to life, with my mother-in-law as the star attraction.