The two actors opened up about being new dads to E! News while promoting their newest flick, The Internship.
Vaughn revealed one of his favorite aspects of parenting, and it's not what you'd expect.
"It gives me someone that I can sit down [with] who really needs to listen to me," he joked. (He later mumbled, "just kidding," under his breath.)
"All kids bring their own joy, it's a lot of fun," he added. "There's nothing more fun than laughing and playing around with the kids."
Vaughn also explained that he and Wilson had a lot in common while shooting their upcoming comedy.
"Our kids are literally about the same age, so it was fun for us to swap pictures and stories."
What proud papas!
For more from The Intern stars watch E! News tonight at 7 p.m. & 11:30 p.m.