Sienna Miller Reveals How Her Kids Are Adjusting to Her New Baby Boy With Oli Green

Sienna Miller‘s daughters have become her baby boy’s biggest cheerleaders.

The Madden star is running a victory lap after her son—who she welcomed in May with fiancé Oli Green—stole the hearts of kids Marlowe Sturridge, 14 (shared with ex Tom Sturridge), and her first child with the Crown alum, now 2 years old.
 
“He’s a boy, and he’s the first boy, so everybody worships him,” Miller exclusively told E! News’ Will Marfuggi at the Madden premiere Nov. 4, noting that gaining a brother has left her eldest “obsessed.”

And despite him being the newest addition, Miller said her infant can hang with the best of them. As she put it, “He’s incredibly chilled and gorgeous, and we’re so lucky.” 

As such, though her little one’s big sisters aren’t clocking in for diaper duty, the American Sniper actress considers the infamous task part of the joys of parenting.

“With pleasure for me, it’s the honor of my life to change my son’s diaper,” she shared, adding, “There are enough of us that are willing.”