AceShowbiz -

Kris Jenner is having a meltdown after Rob Kardashian refused to sign a prenuptial agreement with his future wife Blac Chyna. According to HollywoodLife.com, Kris is blaming herself for Rob's "foolish" decision.

"He refuses to get a prenuptial agreement with Blac and it infuriates Kris so much that she had an epic meltdown," an insider tells the site, "She shed tears for Rob, and for herself. All her daughters have her wit, her business smarts, and common sense. Rob, on the other hand, doesn't. And Kris blames herself."

The insider continues, "She doesn't want him to get hurt, and she sure as hell doesn't want him to be shelling out millions to Blac should something go awry in their relationship. They have a child on the way and Kris only wants her son to grow a pair and get smart fast."

Khloe Kardashian is begging Rob to reconsider getting a prenup. "While Khloe realizes it's not the most romantic thing to do, she has told Rob he should definitely reconsider having a prenup," a second source shares, "She thinks it's the safest idea, even though she doesn't want to doubt Rob and Blac's love for one another, but it keeps him protected."

"Khloe's already seen that Rob has been a little reckless with Blac and she thinks it's time he protected his own interests. At the end of the day, she doesn't want Rob to be left with nothing," adds the second source.

However, Rob has no plans for any prenup. "Rob's a gentleman and money doesn't mean anything to him," another source reveals. "He's not greedy and materialistic like some of his family members. He believes in true love, and that's what he has with Chyna."