Kourtney Kardashian reportedly doesn't want her ex-boyfriend's new girlfriend, Sofia Richie, around when she and her family celebrate the upcoming holidays.

As Scott Disick, 34, continues to enjoy his relationship with his 19-year-old model girlfriend, Kardashian has reportedly laid down the law when it comes to her family and her children and does not want Richie nearby.

“Kourtney made it clear to Scott that his girlfriend Sofia is not allowed at any family holiday events,” a source close to Disick told Hollywood Life on Dec. 15. “Kourtney has several issues with Scott dating Sofia and does not like it at all."

According to the report, Kardashian, 38, has banned the teenager from meeting her and Disick's three kids despite how serious the couple reportedly is. As the insider explained, Kardashian is also attempting to stop Disick from bringing his girlfriend to her family's annual Kardashian Christmas party.

"Kourtney wants to maintain family tradition and she does not think Sofia fits into that ideal,” the insider said.

The insider went on to reveal that Disick is upset about how his ex-girlfriend has been behaving and feels she has too harshly judged his new romance. He also reportedly feels as if Kardashian is attempting to control who he spends his time with.

“Scott wants to spend the holidays with his children AND with his girlfriend, so he is pretty pissed about Kourtney banning Sofia from the holiday season. Scott feels like Kourtney is ruining his holidays with her jealous, petty ban of Sofia,” the insider added.

Kardashian and Disick share three children, including sons Mason, 8, and Reign, 3, and daughter Penelope, 5. Prior to their 2015 split, the former couple dated on and off for nearly 10 years.

While Kardashian is reportedly doing her best to keep Richie away from her children, she allegedly hasn't done the same thing to her new boyfriend, 24-year-old boxer and model Younes Bendjima. In fact, according to a new report, Kardashian recently introduced Bendjima to her children.

Understandably, Disick was not happy to learn what Kardashian had done and feels she is being hypocritical toward his own relationship.

To see more of Kourtney Kardashian, Scott Disick, and their family, including Mason, Penelope, and Reign, don't miss new episodes of Keeping Up With the Kardashians season 14 when the show returns to the E! Network on Sunday, Jan. 7 at 9 p.m.

Tags: scott disick kourtney kardashian sofia richie