Caitlyn and Kris Jenner have two kids together - Kylie and Kendall. [Courtesy]

Kris Jenner has opened up about her relationship with ex-Caitlyn Jenner and has revealed the family "didn't know how to process" Caitlyn's gender transition in 2016. Kris married Caitlyn, then known as Bruce, in 1991 before the couple split in October 2013. The pair have remained on good terms.

And speaking about Caitlyn's transition, the 65-year-old "momager" said it was a "shock" when the family found out Caitlyn was set to go through with it. In a chat with Kristina O'Neill for WSJ Magazine, Kris admitted: "I think one of the most interesting things that we all learned was that none of us had been through anything like that before in a million years.

"We didn't know how to process that — and it was a process, it was a shock, and then it was a reality, and it was something that we had to absorb and try to wrap our heads around and learn about." While Kris described her connection with Caitlyn, 71, as "very respectful" she says that she perhaps didn't handle her ex's transition correctly at the time.

She added: "I'm the kids' mom, so trying to navigate that was hard because I wanted to be the best parent I could be and do the right thing and I didn't always know what that meant in that situation."

Kris and Caitlyn share two daughters together; Kendall, 25, and Kylie, 23. Before marrying the Olympian, Kris was married to Robert Kardashian. The lawyer was best known for his part in the highly televised trial of OJ Simpson.

The pair had three daughters and a son together; Kourtney, 41, Kim, 40, Khloe, 36, and 34-year-old Rob. Kris is currently in a relationship with Corey Gamble after the pair got together in 2014. The mum-of-six recently described her role as "momager" as being "like a fireman".

She revealed that she's on call 24 hours a day and is constantly putting out fires as manager of her kids, who she admits often want to sack her.

Caitlyn Jenner [Courtesy]