Caught pleasuring myself, I appreciate my stepsister's curvy buttocks.

I was caught in the act, my hand doing the work as I savored the sight of my stepsister's voluptuous derriere. Her curves were a sight to behold, a feast for the eyes that left me craving more. Her luscious rear, a testament to her allure, became the focus of my pleasure session. As I continued to indulge, her presence only fueled my desires, a tantalizing tease that made the experience all the more enticing. The thrill of being caught, the allure of her form, it all combined to make for a truly unforgettable moment. And as I finished, a satisfied smile played on my lips, a testament to the pleasure derived from the sight of her ample backside. It was a moment of pure, unadulterated pleasure, a testament to the power of desire and the allure of the female form.