After a long day at the office, I found myself alone with my sister at the desk. She was supposed to be helping me with some paperwork, but things took an unexpected turn. As she bent over the desk, her skirt rode up, revealing her enticing ass. I couldn't resist the urge to grab her by the hips and pull her closer. And just like that, she had my throbbing cock in her mouth. The sight of her choking on my big dick was too much to handle. I watched as she eagerly took me deeper and deeper, her eyes locked with mine. The intensity of the blowjob was overwhelming, and I knew I was going to blow my load. I pulled her off just in time, covering her face in a hot load. The taste of my cum made her even hungrier for more. The sight of her licking my balls was the perfect end to an unforgettable encounter.
