Kourtney Kardashian is on "good terms" with Scott Disick.

Kourtney Kardashian

Kourtney Kardashian

The 'Keeping Up with the Kardashians' star ended her relationship with her boyfriend of nine years last July after growing tired of his constant partying, and though she insists they are not back together, they are getting on well for the sake of their three children, Mason, six, Penelope, three, and Reign, 13 months.

She said: "The kids are doing great and Scott and I have a good system figured out now so I feel we're on a good routine.

"The most important thing is the children having stability and Scott and I being on good terms for their sakes."

Though the 36-year-old beauty has recently been romantically linked with Justin Bieber, she insists she is happy to be single and is resisting her sisters' matchmaking attempts.

She said: "I'm really happy being single right now.

"My sisters keep trying to set me up with people, but I'm enjoying being on my own and figuring out what I want."

But Kourtney does listen to her sister Khloe Kardashian when they're in the gym together and credits her younger sibling for being her "fitness inspiration".

She told Closer magazine: "I've been working out with Khloe.

"We're workout buddies and she keeps me in check.

"I call her my Miss Motivator because even when I'm tired and have been up all night with one of the kids, she kicks my ass and gets me to the gym. She's my fitness inspiration."