KIM & KHLOÉ: STARVING FOR ATTENTION!

WITH NO MEN TO DISTRACT THEM, THE KARDASHIAN SISTERS HAVE BECOME OBSESSED WITH SLIMMING DOWN.

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Revenge body, indeed! Unlucky-in-love sisters Kim and Khloé Kardashian have been showing off their whittled waists on Instagram nonstop since their respective splits from Pete Davidson and Tristan Thompson. But sources tell Star the real one-upmanship is with each other. "Kim is jealous over Khloé's weight loss. It's in her blood to be competitive," says an insider. "She's always seen herself as the prettiest, most successful and popular Karda