Lesson learned: Kim Kardashian shows bedraggled Katie Holmes how to do gym chic in super-tight all black outfit

By SARAH BULL Gym chic: Kim Kardashian looks sleek in an all-black outfit as she hits the gym in Los Angeles She's been hitting the gym hard in a bid to shape up before Christmas.But, instead of opting for casual outfits to work out in, Kim Kardashian has been using her exercise sessions as an opportunity to show off her figure in a series of chic outfits.And Katie Holmes should perhaps have ta...