Ashton Kutcher admits it wasn't easy befriending Bruce Willis. The former "Punk'd" host reveals to Harper's Bazaar magazine that his pride got in the way of warming up to his wife's ex husband.

The 30-year-old comedian says, "I just had to get over my ego, which was screaming, 'This guy used to sleep with your woman.' 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."

Kutcher is married to 45-year-old Demi Moore, who had been married to Willis for more than 10 years. They have three daughter together: 19-year-old Rumer, 16-year-old Scout, and 14-year-old Tallulah.

The actor adds regarding his stepchildren: "I am eternally grateful for having them in my life."

To which his youngest stepdaughter Tallulah agrees: "I love it. We are one big family. Late at night, after a long day, we can sit around and laugh with each other."