Kourtney and Kim Kardashian exacted some sweet revenge on their mom, Kris Jenner, with water balloons and a pie to the face in the Sunday, January 24, episode of Keeping Up With the Kardashians.

In a preview clip from the episode, the sisters lead Jenner out to the backyard, where a carnivalesque contraption awaits her.

Kourtney, 36, attempts to test out the water balloon component, but ends up soaking Jenner, 60, instead.

“Oh, my god, that is so f--king cold!” the momager squeals. “That is so mean. That was not very nice.”

Then the questioning begins.

“What is my due date?” a very pregnant Kim, 35, asks from afar.

“December the 24th,” Jenner says confidently, resulting in a water balloon dropping on her head after Kourtney hits a target with a green ball.

“Nope! Wrong-o,” Kourtney says.

The next question, about North West's name, results in a pie being smashed into Jenner’s face.

“What is North’s middle name?” Jenner asks, after wrongly guessing it's “South.”

“North doesn’t have a middle name!” Kim replies.

“That was so confusing,” Jenner complains.

Watch the Kardashian-Jenner women duke it out over trivia questions about their family, and tune into Keeping Up With the Kardashians on E! Sunday, January 24, at 9 p.m. EST.

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