Kourtney Kardashian's brother refuses to visit her because of Scott Disick.

The socialite moved into a new home with her partner and their 18-month-old son Mason five months ago, but her sibling Rob Kardashian has only just been to the property for the first time, admitting "negative" Scott is the reason why he has stayed away.

In a forthcoming episode of 'Keeping Up With the Kardashians', Rob tells Kourtney: "The reason I don't come over here is because of Scott. He's an alcoholic. He's a negative person in my life.

"Like, he has a kid. Show me that you're mature and show me you're mature enough to have a kid with my sister."

Last year, Scott sought therapy for his addictions and vowed to fight his problems for the sake of Kourtney and Mason.

He said: "Kourtney doesn't really always 100 per cent understand that it's a real disease that I have, and it's not just something that I can turn off and on.

"But now that I have a little baby, I don't really want to play any of these games. I just want to be with her and see my son grow."

Scott famously has a difficult relationship with Kourtney's family, though her mother Kris Jenner has revised her opinion of him and recently urged the couple to marry and have more children.

She said: "I would love for them to get married. I mean, they have a baby and it's time to make that, you know, a full-on legitimate family.

"They're being a little stingy with the grandchildren. I need some more!"