Kris Jenner uses an image of Kendall Jenner on her screen lock.

The 69-year-old showbiz matriarch has revealed that only one of her daughters appears on her lock screen, and that her choice actually annoys Kendall's siblings.

During an appearance on the Not Skinny But Not Fat podcast, Kris joked: "I mean -- I don't even know their names. Don't get started."

Kris later admitted that her other daughters - Kim, Kourtney and Khloe Kardashian, as well as Kylie Jenner - actually comment on her decision to have Kendall's image as her screen lock.

The reality TV star said: "I get a remark every single time, by whoever I'm with."

Kris also revealed that her preference for Kendall, 29, extends beyond the screen lock.

She shared: "I don't think I have inside wallpaper. I think it's all Kendall, all day, every day, all the time. For everything."

Despite this, Kris admits that she's particularly close to Kylie, too.

She said: "Kylie was number one this morning because she spent the night with me last night, we had a sleepover. We have a lot of sleepovers."

Meanwhile, Kendall previously confessed that she doesn't "let a lot people in".

The brunette beauty - who is one of the world's best-known models - admitted to being very selective about who she chooses to befriend.

She said on Emma Chamberlain's Anything Goes podcast: "I don't really let a lot people in - especially now. But I never really have since I was young. It's kind of always been part of my nature.

"For me, it's an energy thing."

Kendall has been open about her anxiety struggles in recent times, and the model revealed how she copes with the issue.

The runway star shared: "For a long time, I thought it was, 'Do the meditation!' ... which, I believe in meditation, I believe that it is very helpful. 'Do the meditation, do the actual real things'. Sometimes I think it's as simple as ... managing what can cause it, knowing what can cause it and trying to find your boundaries with it."