"Borat" and the beauty have another baby.
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The notoriously private couple is staying true to who they are with the birth — no details have been released, including the baby's name or gender.
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The couple have two children together: Olive, 7, and Elula, 4.
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Isla usually eschews the Hollywood spotlight, especially in regards to her private life, but the "Wedding Crashers" actress seemed ever the beaming mom-to-be in the Oscars earlier this year when her baby bump got a sweet smooch from her friend Jennifer Aniston.
Although she rarely speaks publicly about motherhood, she did once credit it with helping her stay in shape.
"I've been blessed in that I never had any body issues during pregnancy. I loved being able to eat whatever I wanted and the whole experience of giving life. And I never worried about losing the weight afterwards, because breastfeeding burns all the calories up so fast," she told Women's Health U.K. in 2013. "Breastfeeding - that's my big slimming secret! That and Spanx. Anytime anyone compliments me on my figure, I'm wearing my Spanx undies."
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