AceShowbiz - It seems like the last thing Kourtney Kardashian wants is to have her children near Scott Disick's girlfriend Sofia Richie. In the September 9 episode of "Keeping Up with the Kardashians" season 15, the eldest Kardashian sister was visibly upset after knowing that Scott let their son Mason meet the model.

The episode saw Kourtney facetiming Kim Kardashian and grandmother MJ, who were filming for Kim's KKW Beauty, while in tears. Kim asked her what was wrong, though Kourtney said that she couldn't talk right then because her daughter Penelope was right beside her.

Kourtney then explained through text that she was upset because Scott introduced Mason to Sofie. She made it clear that she was not happy with that and even called it "annoying." That prompted momager Kris Jenner to talk to Scott, who was ranting at her about Kourt's reaction over the whole thing.

According to Scott, Sofia met his children because they were at his place when the couple got their, "so of cource they met my girlfriend." He then told Kris that Kourt even went all way calling him "a joke" and "disgusting," leaving Kris shocked. "I don't know why she can introduce her kids to her boyfriend, but you can't introduce the kids to your girlfriend," Kris said, referring to how Kourt let the children hang out with her then-boyfriend Younes Bendjima just fine. "I would just ask her why isn't it mutual."

In her defence, Kourtney insisted that the meeting upset her because "this wasn't the best time." She also said that she's worried that introducing another woman into her children's lives would be confusing to them.

Kourtney and Scott later talked it out with Kourtney confronting him and saying, "I make sacrifices all the time and you're not following through with the things that you say you're gonna do. And then you just go and do whatever you want and I'm not okay with that."

Scott, seemingly had enough with her, replied, "Do you think you're difficult or no? Do you think you're overly controlling?" He added, "I think you expect a lot from a lot of people. Not always can your expectations always be met, even though people are trying their hardest to please you."

Although they initially didn't come to an agreement on how they would handle parenting after the split, the two later realized what should be fixed in their relationship after Kris gave them some advice. Scott apologized to Kourtney in the next therapy session, while Kourtney admitted she could see Scott's side of things too.