The `Moneyball` actor - who raises six children, Maddox, 10, Pax, eight, Zahara, six, Shiloh, five, and three-year-old twins Knox and Vivienne, with partner Angelina Jolie - admits their lifestyle can be "chaotic" but they try and keep things simple with the kids whenever they can.
He said: "Angie and I do everything we can to carve out some semblance of normalcy for them and recreate the kinds of moments that are special for us. It`s not unusual for the kids to be covered in paint.
"We have mud fights. It`s chaos from morning until the lights go out, and sometimes after that."
Brad believes having Angelina makes life easier as she has "so much energy", although she did experience a dip in her abilities following the birth of their twins.
He told Britain`s OK! magazine: "I`m lucky that Angie has so much energy and never gets down or complains.
"The only time I`ve ever seen her really tired is after the twins were born and that proved difficult for her to spend as much time with the other children as she did before."