AceShowbiz - Former couple Scott Disick and Kourtney Kardashian have been engaged in a discussion regarding the frequency and appropriateness of public displays of affection (PDA) between Kardashian and her husband, Travis Barker, in the presence of their children.

Disick, who shares three children with Kardashian - Mason, Penelope, and Reign - has reportedly spoken to his ex-girlfriend, expressing his concerns about the excessive PDA. According to sources, Disick believes that the intimate moments between Kardashian and Barker may not be appropriate for the children to witness.

"Scott takes being a dad seriously and wants what's best for the kids," an insider told Life & Style magazine. "He's put his foot down on more and more issues lately - including asking Kourtney to tone down the PDA with Travis in front of their children."

Disick's concerns stem from an incident in February where Kardashian and Barker were criticized for ignoring their daughter, Penelope, at a concert and engaging in public kissing. The couple's PDA has raised eyebrows among fans, and some have expressed concern for Penelope's well-being.

A separate insider claimed that Disick and Kardashian are "at war" about how to raise their children. While the kids adore Barker, Disick is reportedly feeling replaced and insecure about his role in the family.

"Scott is scared of being replaced, and as you can see, it's really taking a toll on him," the insider said.

Disick's concerns have reportedly sparked tension between him and Kardashian, who have previously had a tumultuous relationship marked by on-and-off dating and challenges related to Disick's struggles with substance abuse.

Despite his concerns, Disick has maintained a level of distance from his ex amid her pregnancy and subsequent marriage to Barker. He reportedly tries to be supportive but knows that giving space is important for everyone involved.