Ashton Kutcher and his fiancé Mila Kunis welcomed a baby girl into the world in Los Angeles on October 1st, and it already seems the former 'That 70's Show' co-stars are taking to parenthood rather well, especially the first-time mother.

Ahston Kuthcer
Kutcher and Kunis welcomed their baby daughter on October 1st

While appearing on The Ellen DeGeneres Show on Friday (Dec 12th), the usually private Kutcher opened up about becoming a father, and explained why Kunis is the "greatest mom" to their daughter Wyatt Isabelle.

"She's a little bit older than two months," the 36-year-old actor told Ellen. "Like two and a half months old, not counting."

The talk show host then asked the proud father why he and Kunis have decided to raise their first child without a nanny. "Yes, just the two of us," he responded. "It's awesome. It's unbelievable."

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"We just want to know our kid," Kutcher continued. "We want to be the people that know what to do when the baby's crying to make the baby not cry anymore. We want to know, like when she makes a little face or something we want to be emotionally in touch with her and I think the only way to do that is by being the one who's there."

Kutcher also couldn't stop gushing about how well his future wife is handling motherhood. "The most amazing thing about having a baby is my partner, Mila," he said. "She's the greatest mom I can't even. I go to work every day and I come home and she's like perfect. And it just seems like everything went amazing. And I know that something probably didn't go amazing, but she never tells. it's unbelievable. She's incredible."

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And for him, fatherhood has taught the Hollywood star something very valuable. "You think you know how much you can love another person, and then you have a child and you realize you didn't know," he concluded.