Caitlyn Jenner has revealed she and Khloe Kardashian have not spoken in about five years.

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Caitlyn blabbed about the current status of her relationship with Khloe in a confessional that aired on Thursday's episode of the Australian reality series I'm A Celebrity... Get Me Out Of Here!, according to Us Weekly.

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The topic was broached when Caitlyn shared some insight into her gender transition, which began over four years ago when Olympic athlete Bruce Jenner introduced himself as Caitlyn to the world on the cover of June 2015's issue of Vanity Fair.

Caitlyn reportedly revealed her son, Brandon Jenner, was the first person she had decided to tell about her transition.

"[Brandon] said to me: 'Dad, I've always been so proud to be your son but I've never been more proud of you than right now,'" Caitlyn, 70, told the cameras on the November 28 episode of I'm a Celebrity... Get Me Out of Here, Us reported.

"I went through every kid and Khloe, for some reason, was pissed off about something through this whole process. It's been five or six years and I really haven't talked to her since."

"We were really close," Caitlyn reportedly added. "I raised her since she was five years old. I really don't know what her issues are."

Caitlyn's memoir, The Secrets of My Life, which hit shelves in April 2017, might've had something to do with it.

Khloe, 35, and her sister Kim Kardashian were reportedly both "upset" by the book's contents, especially in regards to details about Caitlyn's marriage to Kris Jenner, which had ended three years prior.

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Kim felt that Caitlyn accused Kris of hoarding all their money when they were married and being aware of Bruce's tendencies to want to dress like a female for years before he officially transitioned into a woman in 2015.

Caitlyn also alleged in her memoir that Kris had made her suppress her true self.
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In April 2017, an insider told Us that Caitlyn's book was "the last straw" for Khloe because the jeans designer no longer identified with "this person who seems to have stopped caring for the family."

And in late May of that year, Kim said during an appearance on Watch What Happens Live with Andy Cohen there was a "zero" chance she'd ever speak to Caitlyn again -- maybe a "two percent" chance since she's still the father of her half-sisters Kylie and Kendall Jenner.

Fast forwarding to more recent days, Khloe reportedly skipped out on Caitlyn's October 29 birthday party. A source told Us the girls weren't fighting but they "aren't exactly close" either.

"[Kylie Jenner] and Khloe are so tight and like best friends, so she would never be rude to Kylie and disrespect Kylie's dad by not going [to the party]," the source said.

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In addition, Caitlyn reportedly spilled gossip on the Kardashians' spending habits and revealed on the Australian reality series' currently-airing season Kylie spends about $300,000-400,000 a month on security.