Scott Disick not happy Kourtney Kardashian is dating new guy

Scott Disick holds hands with Sofia Richie as they step out for lunch in Beverly Hills (Photos)

Scott Disick may not have her father's approval, but that doesn't mean it's going to stop him from making out with his new girlfriend, Sofia Richie. After mom Kris Jenner tried to claim that Scott would feel bad if Kourtney abandoned him, Kourtney had a different idea.

The reality star reportedly has had no problems with her baby daddy either, as of late, as they've gotten their co-parenting strategy down to a science and Scott's relationship with Sofia hasn't affected that at all. In a clip for Keeping Up With The Kardashians, filmed before Scott, 34, started dating Sofia Richie, 19, she fumed: "Why can't he get it together?"

"Scott isn't treating this as a long-term relationship whatsoever", said the source.

Although the couple looks as if they are quickly falling for one another, a friend close to Disick insists the star doesn't take the romance seriously and isn't optimistic that it will last long.

Kourtney Kardashian is firing back shots and they are exactly the kind you expect from the Kardashians. However, Kourtney insisted that Scott - who reportedly cheated on her in the past - had no right to be jealous.

The report added that Sofia Richie is looking for a more serious relationship and Scott was more reluctant but agreed to be her boyfriend.

But it's also obvious that Scott Disick's age and general reputation don't sit particularly well with Lionel, who was asked-straight up for his thoughts on Sofia's choice before a recent taping of American Idol.

Kourtney added, "He sounds like it". He complained to Kris that Kourtney is "allowed" to throw up in the bed but when he does it he has to go to rehab, seemingly forgetting that he himself has said things like, "My issues are bigger than me". She shares three kids with him, so she'll always want the best for him and will always make sure he's happy.