I'm your sister-in-law in law, I've lost my job and have to move in with you and your wife. I hate my step-sister/your wife. She has gotten fat, saggy, gross and unfuckable, so I realize I have a chance at a easier life as my body is slim with a nice ass, perky tits, slim stomach and long slim legs. Knowing this I start seducing you by filling you with lust until you ditch your fat saggy wife and replace her with a slimmer and tighter and younger model, ME!