On the day of her 18th birthday, I decided to give my stepsister a special gift. I wanted to show her how big my cock was, and I knew that no other guy had ever been able to make her squirt like I could. As soon as she saw it, her eyes widened in surprise and desire. She couldn't believe how huge it was, and she just had to feel it for herself. I let her touch it, and then I let her suck on it. She took it into her mouth, her lips wrapping around it, her tongue sliding over the shaft. It was a sight to behold, her tight ass bouncing up and down as she rode my big cock. She moaned and screamed as I fucked her hard, her tight asshole taking every inch of me. It was a sight to behold, her tight ass bouncing up and down as she rode my big cock. The sight of her squirming and moaning made me cum all over her pretty face.