AceShowbiz -

Kourtney Kardashian is a protective mother, especially when her ex Scott Disick is around their children. While she didn't completely ban Scott from meeting their kids as reported before, she reportedly takes major precautions to ensure the safety of her three children during Scott's visit.

According to RadarOnline, the 38-year-old reality TV star "does not trust him at all and she is not about to let her kids go out with their dad without proving he is sober." Thus, "she is requiring him to take a Breathalyzer test before he takes the kids anywhere by himself," a source tells the site.

On how Scott reacted to the demand, the so-called insider reveals, "At first Scott was completely resistant to doing it, but now he's agreeing." Scott was recently reunited with his kids in Calabasas after his trip to Europe, during which he partied with multiple women.

The source adds that "Kourtney is still seeking full custody with supervised visits." The source goes on noting, "The problem is that the kids love Scott so much and they really do not fully understand what is going on. When Scott is not around, the kids are always asking where their daddy is and it breaks Kourtney's heart."