Kendall Jenner and Khloe Kardashian call their mother, Kris Jenner, a 'whore' on an episode of 'Keeping Up With The Kardashians.' As John Basedow (@JohnBasedow) reports, Kendall, who infamously called herself the 'worst reader' on the Billboard Music Awards, joined her outspoken sister in calling mama Kris the 'W-word' when the Kardashian matriarch complained about picking up Kendall's dog's poop.