Defiling My Wife's Adorable Little Sister

Every day that goes by, I feel more and more guilty about the sex that I had with my wife's bratty little sister Kelsey. Not only that, I'm terrified that she'll tell someone and Lynn will divorce me. When I'm forced by my wife to help move Kelsey into her new dorm room, she made it perfectly clear that if I didn't make love to her before I left, my world would come crashing down around me.