In 2005, he became Demi Moore's husband and was immediately thrust into the role of step dad to her three daughters, Rumer, Scout and Tallulah, with ex-husband Bruce Willis.
In a new interview with Parade magazine, the successful actor and TV producer (MTV's "Punk'd") talks about these and other roles, including being "teammates" with Moore's ex and a student of Kabbalah, the mystical branch of Judaism.
The transition to husband seems to have come very easily to the actor. "We waited to get married until we felt like we were already married. It does bad things when you turn the other person into the ball and chain in your life," he says. "My relationship with my wife has the same energy as before but more depth."
Even before they tied the knot, Kutcher says the connection was instantaneous.
"I could be totally comfortable on my first date with Demi. It was just there," says Kutcher, who is 15 years younger than Moore. "We had one argument in the first three months of dating, and since then we haven't had any. We deal with issues before they become arguments. I've never tried to change my wife, and she has never tried to change me. Demi told me once, 'When you're right, that's all you get to be.' And for some reason, that made sense to me."
2The former "That 70's Show" star is elated about his new role as "the other dad" to Moore's three children. "There is not a human being that I could love more than those girls and their mom. If I had a daughter that was of my blood, I wouldn't love that child any more," he says. "I feel like I have three kids and we'll see whether we're given another child."
The actor, who stars in the upcoming film "The Guardian" opposite Kevin Costner, says there is no competition between him and Moore's ex, Bruce Willis, who was married to Moore for 11 years.
"We are teammates," Kutcher says of Willis. "I hope the effort that Bruce, Demi and I put into our relationship helps other divorced people who are having a hard time. In order for it all to work I have to have a good relationship with Bruce. He's not 'the other guy.' He's not in competition. We have our own friendship. I'm not saying it's not hard, man."
3Kutcher admits that life isn't perfect around his house. "We have frustrations, like every relationship," he says. "It's just the way we deal with them. I've watched my step-dad and my mom have a disagreement and not talk for a day. Why go through that?"
Though the actor doesn't often speak about his private life, in this interview he is surprisingly candid. "Look, I can't help talking about my marriage and my love because it's all tied together," he says. "My life is intrinsically based on my relationship. When it comes down to it, my family is what I do everything for."
Life with Moore has led Kutcher in a different spiritual direction, too. As a student of Kabbalah, he tells Parade that he's learned "about giving and sharing as an approach to life. I don't pass on some religious 'do this because' message. You're not going to hell because you're not studying this."
Even with all of the recent changes in Kutcher's life, part of that kid who grew up poor back in Iowa still remains. "I'm still a penny pincher," he says. "I went out and got a Vespa because I can drive all week in L.A. on $6 of gas."
By Amy Bonawitz