Kim and Khloe Kardashian Epically Attack Mom Kris Jenner With Cake -- Watch! (Exclusive)

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The messy moment goes down on the next episode of ‘Keeping Up With the Kardashians.’

Kim and Khloe Kardashian are out for sweet revenge -- literally.

ET has your exclusive first look at Sunday’s all-new episode of Keeping Up With the Kardashians, which finds the sisters plotting against their mom, Kris Jenner. Kim and Khloe are gathered in Kris’ pristine kitchen, armed with two identical cakes from the family’s favorite bakery. One cake is topped with cookies that read, “Sweet Revenge” and “How Does Payback Taste?” Cryptic!

Khloe calls Kris into the kitchen, much to Kris’ surprise. The sisters then tell their mom that they wanted to “truly thank” her for “just being you.” That’s when Kim grabs her mom for a hug -- and chaos erupts. As soon as Kim has Kris in a tight embrace, Khloe lifts up one of the cakes and drops it directing on the 62-year-old matriarch's head!

“Khloe, what is wrong with you?” Kris screams out. “What the hell are you doing?”

The sisters then point out the cryptic cookie messages on the remaining cake, which only confuse Kris.