I've always found my stepsister's natural tits irresistible. During a private moment, I couldn't resist the urge to explore them. As I gently cupped them in my hands, I felt a rush of desire. I took out my massive black cock and began to stroke it, all the while teasing her sensitive nipples. Her reactions fueled my lust, and I knew I had to give her a taste of my throbbing member. I fed her the tip, watching her choke on it, her eyes wide with surprise. I took control, thrusting deeper into her mouth, gagging her with my size. Seeing her submission only made me hungrier for more. I flipped her over and began to pound her wet pussy, her moans echoing in the room. But that wasn't enough. I craved more. I plunged my monster cock into her tight ass, fucking her harder and faster, driving her to new heights of pleasure. Only then did I release my hot load, covering her ass in my cum.