The Night Before Our Parents Wedding

It's the night before our parents wedding, and there has always been so much sexual tension between the two of us. I catch you looking at me all of the time, don't even try to deny it. This is our very last chance to fuck before we officially become step-brother and step-sister tomorrow. Obviously this has to stay a secret between the two of us, and I know it sounds crazy, but maybe we should just get this out of our systems tonight. Lets fuck before we become siblings ;)