Would It Help If You Thought I Was Your Step-Sister

(Joe Dirt Parody) I met this really cool guy today who invited me out on his boat. Lucky me because I am always locked away in my foster house and never get to do anything or meet guys. We have a great day on the water and I am fully prepared to fuck him later to show my appreciation. I ask him to take me home, which he immediately jumps on. On the way there I can't even wait so I have him pull over so I can suck his dick before we get to my trailer. The weirdest thing happened though, he asked me some more questions about being adopted, and when I said I had a step-brother he locked me out of the truck and drove away! A few days later he shows up at my trailer and explains what happened. Apparently both of our stories about how we became orphaned were exactly the same, and he thought that I WAS ACTUALLY HIS STEP-SISTER. I reassured him that there is no chance at all, and we pick up where we left off. I sit on his fat cock, and then realize he really isn't into it at all. When I ask him why, he can't give me a straight answer. I ask him if he wanted to go back to thinking that I am his step-sister, and once I do that, he is rock hard and cums super quick. I guess we get to pretend from here on out, because he is a great fuck, and I need his head in the game. Fast forward a few months down the road, we decided to get a DNA test, and it turns out; we ACTUALLY ARE STEP-SIBLINGS. That doesn't stop us though, it's actually kind of hot, I love fucking my new step-brother.