Stepsister seduces me in a late-night encounter

I was in the late hours of the night, in the living room, when I heard the sound of footsteps coming up the stairs. I knew my stepsister was up and about, and the thought of her in her underwear or less, her blonde hair cascading over her shoulders, was enough to get me aroused. As I turned around, I saw her standing there, her eyes filled with lust and desire. She was a sight to behold, her curves accentuated by the dim light. I couldn't resist the allure of her big, luscious ass. She led me to the bedroom, where she bent over, presenting her ass to me. I couldn't resist the urge to bury myself deep inside her, feeling her tight pussy enveloping me. After a passionate doggystyle session, we moved on to a mind-blowing blowjob, before finishing things off in a position that left us both satisfied. It was a night to remember, and I knew I'd be dreaming of my stepsister's big ass for a long time to come.