"Now that I've got kids, Matt gives me direction!" he said.
"Every time one of my kids was born, I'd say to my wife, 'I can't imagine two of these at once.' I have no idea how he's doing it. It's crazy," Damon confessed, before cracking that he still thinks Clooney is a "mess" of a father since Ella and Alexander were born in June.
"Its true. He's got me. I'm a mess," Clooney agreed. "But [Amal] is like an Olympic athlete. You've got two kids, you're breastfeeding like crazy. I'm very good, by the way, at diaper changing."
"This is an all-new adventure for me, but I've been through it with all my friends, so it's not really that much of a surprise," he joked. "[Fatherhood] has made me much older. It doesn't fundamentally change you, but I'm excited to see who these two people are going to be in life. I'm very proud to be [a dad]. I feel honored to be a part of it."