"My stepsister thought she could pry into my personal life without consequences. She was wrong. When I caught her reading my diary, I saw red. But as I confronted her, I saw something else - desire. She was a cute 18-year-old, her body ripe and ready. I couldn't resist. I grabbed her, my hard cock pressing against her soft belly. She gasped, but she didn't pull away. I kissed her hard, my tongue forcing its way into her mouth. She moaned, her body melting against mine. I threw her onto the bed, her big ass bouncing on the mattress. I spread her legs, my hard dick sliding into her wet pussy. She cried out, but I didn't stop. I fucked her rough and fast, my body slamming into hers, until we both collapsed, spent and satisfied."