Brad Pitt is threatening to leave Angelina Jolie unless she takes his hand in marriage, it's claimed.

The couple - who are said to be rowing around the clock - have hit a rough patch in recent weeks, with Brad claiming that he will walk out on Angie and the kids if he doesn't get his own way.

A source tells OK! magazine, “Brad’s told her, ‘Marry me, or it’s over.’ ”

Furthermore, the Fight Club star is said to be threatening Angie with "no more babies", unless the actress can prove she is legally committed to him forever. 

The source adds, “He definitely wants to get married before they have any more babies.”

And it seems Angie's hectic schedule filming scenes for Salt has left the couple barely any time to enjoy one another between the sheets.

The source continues, “Their relationship is so out of kilter, he believes marriage is the only thing that will bring it back around.”

See Brangelina's love story in pictures below