Khloe Kardashian and Scott Disick are preparing the prank to end all pranks! In a new sneak peek clip for the upcoming second half of season 18 of, Khloe prepares to impersonate her momager, Kris Jenner, for what she says is the «last time.»Khloe gets heavy makeup put on, prompting producer Erin Paxton to tell her, «You look like you're about to star in a Broadway play!»«I am,» she jokingly replies. When Scott brings Khloe's 2-year-old daughter, True Thompson, into the dressing room, the little