Cameron Diaz and Benji Madden have only been married for six months, but they already feel qualified to dish out the marital advice.

And their first pearls of wisdom are going to the same people who set them up: Nicole Richie, 33, and Joel Madden, 36 — who are contemplating a divorce after nearly five years of marriage!

nicole richie

“Cam has persuaded Nicole to stop her divorce proceedings for now,” an insider tells Life & Style. “Ever since Cam got married, Nicole’s been turning to her for advice.”

Unsurprisingly, Benji, 36, has been dishing advice to his brother as well — urging him to make it work for the sake of his kids, seven-year-old Harlow and five-year-old Sparrow.

nicole richie kids

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Like Cameron, 42, Benji is optimistic that his brother-turned-band mate and his sister-in-law can pull through.

“Benji loves Nicole and Joel and thinks they can work it out,” the source explains. “If they just spend more time together and stop making their careers a priority.”

For more on Nicole and Joel’s relationship, pick up the new issue of Life & Style, on newsstands now!