Is Kourtney Kardashian keeping her kids from their father?

According to a new report, Kardashian is super protective of her three children, seven-year-old Mason, four-year-old Penelope and two-year-old Reign, because her former boyfriend, Scott Disick, is reportedly spiraling out of control.

She's hesitant to allow her kids to spend time with their dad.

"Kourtney's not furious about Scott's partying, she's more worried and upset, mainly because of the kids," an insider revealed to Hollywood Life on Tuesday. "Kourtney wishes Scott would just grow up and stop being so selfish - he's a father of three, not some carefree bachelor with no commitments."

As Kardashian enjoys her relationship with Younes Bendjima, Disick has been city hopping with a number of women, including young actress Bella Thorne and model Sofia Richie.

All the while, he's been partying quite hard and his habits have become concerning to Kardashian.

"Scott has always done exactly what he wants, and always put himself first, so Kourtney's not particularly shocked by his recent behavior," the source continued. "But she's adamant that she's not going to allow Scott around the kids while he's acting like this - and it's been a while now since he saw them or spoke to them."

Kardashian and her kids recently went on vacation as Disick partied with friends in Las Vegas and attended a nightclub.

"It breaks Kourtney's heart, because she really wants the kids to have their father in their lives, but she's not taking any risks," the insider added. "It's like Scott is a lost soul right now."

Tags: kourtney kardashian scott disick