Mila Kunis and Ashton Kutcher have recently returned from a week-long "babymoon" in French Polynesia, where the couple toured the island of Taha’a and even stopped to sign some autographs.

The hottest new celebrity vacation trend, a "babymoon" is a lavish trip expectant couples take together before the baby arrives — giving new meaning to the phrase, "what to expect when you’re expecting."

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After the babymoon period was over, the couple arrived back in Los Angeles on Sunday, and headed off to Mila’s parents' house soon after.

Read more: Ashton and Mila's sweetest moments in photos together

A source close to Ashton, 36, and Mila, 30, tells People that they are now in “the nesting phase.”

Other expectant stars who are said to have enjoyed a babymoon include Stacy Keibler, Hilary Duff, Kate Hudson and most recently, Rachel Bilson.