Brad Pitt opened up in a new interview about family life with Angelina Jolie.

“The kids ask about marriage,” he said to USA Today. “It’s meaning more and more to them. So it’s something we’ve got to look at.”

The ‘Tree of Life’ star admits that fears about his six kids’ safety “keep me up at night.”

Reflecting on what parenthood means to him, he explains, “Kids hold up a mirror to you….You can’t make excuses. You’ve got to make sure they’ve brushed their teeth and eaten a good breakfast. You want to be present if they wake up with a bad dream.”

A round-the-clock nightmare for the Pitt-Jolie brood? The Paparazzi. “We’re hunted,” he says, “Our kids have to live behind a gate. Outside, there are people with cameras.”

“But I’ll take the trade-off,” he adds. “I never knew I was capable of experiencing so much love.”

Sharing a glimpse at how his large family manages a globe-trotting lifestyle, jetting between movie sets and premieres, the actor says the older ones are home-schooled, and he describes the Jolie-Pitt travel style:

“On the road, we’re a military mobile unit…. The kids have got their stuff down to one backpack, and they’re each responsible for their own bag. Mom does the packing. She’s quite gifted at that; puts in just what we need, nothing extra.”

“Angie and I do everything we can to carve out some semblance of normalcy for them, to re-create the kinds of moments that were special for us,” he adds. “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.”

And normalcy at home includes keeping love alive between Mom and Dad.

“There are no secrets at our house,” Pitt says with a smile. “We tell the kids, ‘Mom and Dad are going off to kiss.’ They go, ‘Eww, gross!’ But we demand it.”