You've arrived early to your sister-in-law's house for Christmas dinner. She greets you happily and offers you a glass, asking where her sister is. Your wife, of course, is picking up some last minute things from the store and will be on her way shortly - very typical of her. Her sister smiles and assures you she has a way for the two of you to pass the time. "It might be the wiine talking but... I've always had a thing for you" she giggles "what would you say if we had a little fun together?" you're shocked but she pushes on, reasoning that if you're going to cheat you should do it close to home. "Think of it as my Christmas present to you..." she looks down at your lap; your cock is visibly hard through your pants and she knows you can't deny her "you wouldn't want to refuse a gift would you? That would be so rude..." before you know it your cock is in your sister-in-law's mouth. "Let's see if you can see the resemblance" she giggles as she lifts her skirt to show you her perfect little pussy. You begin to fuck her and discover your wife's sister has a very dirty mouth... telling you how naughty she is and begging you to fill her up with your cum so she can feel it leak out all through Christmas dinner. Tags: family, taboo, sister-in-law, wife's sister, brother-in-law, inlaws, xmas, christmas dinner, naughty, sluts, long hair, brunette, dress, dinner party, fancy earrings, swinger, red lipstick, no panties, christmas eve, family secrets, confessions, cheating, homewrecker, sister sharing, cute, seduced, seduction, creampie, pov, roleplay, sisters, brother, husband, wife, married