“I just had to get over my ego, which was screaming, ‘This guy used to sleep with your woman,’ Kutcher says in the April issue of Harper’s Bazaar. “And I listened instead to the little voice inside that was whispering, ‘This guy loves and cares about your woman.’

“Once I did that, it was a cakewalk,” he adds.

Demi Moore, 45, says she is pleased Kutcher gets along with Willis, 52.

“Look, I’m the product of divorced parents, and my brother and I were the pawns in my parents’ game,” Moore says. “I never wanted that for my kids.”