Matt Damon: My Wife Is “Done” Having Kids After 4th Baby

 Gilbert Carrasquillo/FilmMagic

Four is enough!

Matt Damon's wife Luciana Barroso is through with childbearing once she delivers her fourth daughter later this year.

"My wife is about to have our fourth kid and we've drawn a line in the sand," Damon, 40, tells

"This is it. Our lives are full and wonderful and we're done having kids," the Oscar winner says.

Married since 2005, the couple is already raising three daughters: Isabella, 4, and Gia, 2, plus Barrossa's daughter Alexis, 11, from a previous relationship.

"Lucy is in her third trimester for the fourth time and I think that's about enough to ask of any woman," Damon surmises. "I don't want to turn her into Ethel Kennedy."

(Now 82, political matriarch Ethel Kennedy famously bore 11 children.)

The star, who'll next appear in Clint Eastwood's supernatural thriller Hereafter, considers his parental duties his first priority. "If I had a bucket list, I'd say raising my four girls to be strong, good women would be number one," he says.

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