My Stepsister Asked me to help her with her Homework, but I had a better Idea

My stepsister needed some help with her homework, but I had a much better idea. This blonde bombshell was the perfect study buddy, and when she leaned over the table, her big, natural tits pressed against the desk. I couldn't resist the temptation. I reached out, cupping her boob, and she moaned softly, her eyes locking onto mine. "You want to do something else, don't you?" I whispered in her ear. She bit her lip and nodded, her cheeks flushed with desire. I unzipped my jeans, my cock already hard and throbbing. She looked at it, her eyes filled with lust, and I knew she was going to be a good student. She slid down onto her knees, taking my cock deep into her throat. Her head bobbed up and down, her big tits jiggling with each movement. I couldn't believe how good she was at this. She sucked me like she'd done it a thousand times before. I reached down, running my fingers through her silky blonde hair, guiding her head. She moaned around my cock, the vibrations driving me wild. I felt her hand slip inside my jeans, stroking my balls as she sucked me. I knew I was close, but I wanted her to come with me. I pulled her up, my cock still rock hard. "I want to fuck you," I growled. She nodded, and I lifted her onto the desk, spreading her legs. Her pussy was already wet, ready for me. I thrust into her, her big tits bouncing with each movement. She screamed, her hands gripping the edge of the desk. I pounded into her, my body slamming against hers. She moaned and screamed, her body writhing beneath me. I could feel my orgasm building, and I knew she was close too. I reached down, rubbing her clit, sending her over the edge. She came hard, her pussy clenching around my cock. I let go, my cock pulsing inside her as I came. We collapsed onto the desk, our bodies slick with sweat. It was the best homework session I'd ever had.