The actress adopted daughter Isabella, 18, and son Connor, 16, with ex-husband Tom Cruise, but they now live with their father and his wife Katie Holmes.
But Kidman said she would like nothing more for them to move in with her, husband Keith Urban and daughters Sunday Rose, two, and Faith Margaret, two months.
She told 60 Minutes, 'It's so different because they don't live with us, but I would love them to come and live with us at some stage.
'They're teenagers - they're in a whole different place.'
And she said that she hasn't ruled out the possibility of having more kids.
'I never say never. If you ask Keith, he'd be like 'No,' but my sister's got five kids. Keith's like, 'You're not going to be like your sister, are you?' I'm at an age now where it's very hard to have a child when you're 43. We love what we have,' she said.