As I catch a whiff of my mother-in-law's enticing scent, my cock stiffens uncontrollably. I can't help but imagine her luscious curves, and the thought of her riding me sends shivers down my spine. I quietly approach her, my heart pounding in my chest. She's oblivious, lost in her own world, but I can't resist. I slowly unzip my pants, my throbbing member springing free. I inch closer, her aroma growing stronger, and I can't hold back any longer. I grab her hips and push into her from behind, her moan of surprise quickly turning into one of pleasure as I fill her completely.