Ahead of Ms Jenner's trip to Milan for the Prada fashion show, Ms Kardashian laid down rules for her while she was chatting on phone with the model in Thursday's episode of Hulu's "The Kardashians." The 41-year-old told Ms Jenner that she wants to keep her custom G650ER aircraft pristine, reported New York Post. When Ms Jenner told her sister that she is planning to get a "quick spray tan" before their flight. To which Kim Kardashian reacted with hesitation. She asked, "A spray tan before my flight?"