Caitlyn Jenner is the biggest name in I'm A Celebrity 2019, but not everyone is arrival in the jungle.
Her ex wife Kris Jenner, 64, is reportedly terrified that Caitlyn could leak secrets that will "destroy" the Kardashian Klan.
The former couple have a famously rocky relationship after Caitlyn accused Kris of "mistreating" her and being "controlling" in her explosive tell-all book The Secrets of My Life.
And Kris is worried that the ways things are between them will mean Caitlyn, 70, won't hold back in airing the famous family's dirty washing in public.
A source told Closer magazine: "Kris was in shock that Caitlyn's been tipped for the show, as she could destroy their careers by revealing some of their secrets.
"Kim also doesn't want details about her marriage to Kanye being shared and Khloe is nervous she might target her."
Khloe famously fell out with Caitlyn after the release of her book over the way she wrote about her momager.
The family has reportedly begged Caitlyn's daughters Kendall and Kylie Jenner to intervene.
The source continued: "They've asked Kendall and Kylie to urge her not to blab - but Kris isn't sure Caitlyn will do as they ask."
It comes after Cailtyn admitted that the Kardashians were confused about why she wanted to take part in I'm A Celebrity.
The sporting legend professed she needed a "break" from her lavish lifestyle as she prepares for her jungle stint.
She said: "I said, you know what, I need a break, I like challenges."
Caitlyn was the second contestant to land in Brisbane Airport for this year's jungle show.
Asked if she was excited to be taking part in the show, Caitlyn said: "Yeah."
