Vanna Bardot's nerdy sister sits on my dick

I had a wild fantasy, and it finally came true. My nerdy sister, who always looked down on my brother and me, was caught sneaking around the house. We had a little chat, and she revealed that she had been harboring a secret desire for my dick. I was taken aback at first, but then I began to think about all the taboo shit we could get up to. She was young and inexperienced, but she had a fire inside her that made her irresistible. I couldn't resist her any longer and I let her sit on my cock. It was a strange feeling, fucking my sister, but it was also incredibly hot. She moaned and writhed as I fucked her, and I couldn't help but think that this was the best fuck of my life. It was a forbidden pleasure, but it was also one that I knew I would never forget.