Kourtney Kardashian will leave "Keeping Up With The Kardashians."

?I decided to spend more time with the kids, to spend more energy on them. I'm not saying goodbye, "she said in an interview with Entertainment Tonight. ?I think you should watch the new season, Season 18. It's not being broadcast, it's being filmed. At this moment, in this room. ?

Kourtney, 40, has three children with her former partner, Scott Disick: Mason, 9, Penelope, 7, and Reign, 4.

The Poosh founder has repeatedly threatened to leave the series after being attacked by sisters for work ethics - or more specifically, for lack of work ethics. In one episode, Kim Kardashian shouted to Kourtney as the latter could not afford the Christmas photography service.

"I want Kourtney not to be so irritating, like she's the boss because she's not," Kim said at the time. "It's less interesting to watch, so let's not come.

Kim then explained what he meant. "I wanted to say, you're the most boring," she told Kourtney.

Khloe further explained Kourtney's decision to reduce her presence in the series and said: "We love Kourtney very much and will miss her, but people come and go all the time, especially in this family. It looks like a revolving door. Kourtney may not be this week, but he may be back next week. Everybody's back. "

Their brother, Rob Kardashian, quit KUWTK several years ago after suffering mental and physical health problems.