Speaking in a new interview with New York Magazine, Nicole opened up about looking after her loved ones.
"I feel maternal to most people. In my family, I’m very much the caretaker. My husband [Keith Urban] always says, 'You can’t save the world, Nicole,' but I think it’s just an inherent part of me," the Aussie beauty explained to the publication.
A touching example of the actress' nurturing side is the fact that some of the child stars from the upcoming HBO series she recently worked on, Big Little Lies, go over to Nicole's house to play with her two daughters, Sunday Rose, eight, and Faith Margaret, six.
Nicole, who also shares two grown-up children, Isabella, 23, and Connor, 21, with ex Tom Cruise, tells the publication her love for family is endless.
"The love is abundant, and it doesn’t just evaporate or disappear — it’s just there, and it is a bottomless well.”
“It will always be there, which is a beautiful thing to say to a child: 'You’ll never be abandoned. The love will always be there for you.'"
“It’s an important thing to hear that as a child," the Oscar winner explained.
While Nic might have love to give out in spades, she admits: "I beyond need it. Yes, I still need the acknowledgment.”
As she promotes her latest film Lion, which follows the story of an adoptive mother of an orphan who starts an epic search for his own birth parents, Nicole has been opening up on the theme of family.
The stunning star recently told the UK's Telegraph that Lion was dedicated to her two children Bella and Connor, who are adopted.
"The movie is a love letter to my children who are adopted and it's not about anything other than, 'I wanted you whatever your journey is, I'm here to love and support you.' That's what I connected to. I wanted to make the film for them," she professed.
"When you are an adoptive mother, of course you think about the birth mother and the birth parents and what it all means and how our lives are intertwined in some way, whether the child choose to find the birth parents or not."