The "Maleficent" actress says that she stays grounded thanks to frequent bathroom breaks with her six children: Maddox, 12, Pax, 9, Zahara, 8, Shiloh, 6, and twins Knox and Vivienne, both 4, reported Us magazine.
"The great thing about having a bunch of kids is they just remind you that you're the person who takes them to go poop. That's who you are!," she said.
The 37-year-old also said that she and fiance Brad Pitt work hard to maintain "a very normal, very grounded home" for their family.
"We're friends. We have a laugh with our kids," she added.
The couple, who met on the set of "Mr & Mrs Smith" in 2005, when Pitt was still married to Jennifer Aniston, got engaged in 2012 after seven years of dating.