Kim Kardashian-West and her older sister Kourtney Kardashian are no strangers to a family feud. But last night's season premiere of series 18 of Keeping Up With The Kardashians saw their feud taken to a whole new level.
KKW Beauty mogul, Kim, 39, slapped her sister Kourtney, 40, several times after Kourt launched a verbal attack at Kim. Mum-of-three Kourt screamed: "I will f**k you up!" towards her younger sister.
Their explosive fight came after Kim slammed Kourtney's work ethic and later accused her of "not caring about stuff". Kourtney recently revealed she was taking a step back from filming their hit show in order to live a more "fulfilling" life.
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