Nicole Kidman has suggested that she may still have another child, revealing that her "maternal instinct is her strongest drive".
The 49-year-old actress, who has two children with husband Keith Urban, and is also mother to Bella, 24, and Connor, 21, who she adopted with ex-husband Tom Cruise, said one of her daughters would like another sibling.
"One of them wants another one, the other one doesn't". She added: "I never say never."
When asked whether she has discussed the subject of adoption with her children, she said: "Yeah because I'm 49 and they're like we'd love it".
She added: "I never say never because the maternal pull is strong. My sister has six children...My grandmother had her last child at 49.
"They said she'd been the oldest woman to give birth in the hospital...At that time that was pretty unusual."
Speaking at screening in New York of her latest film Lion, in which she plays an adoptive parent, she said she 'always knew' she wanted to adopt a child.
She said: 'I thought, I hoped, that I would have all different ways in which I would be a mother. My force, I've realized, in my life is maternal. That's probably my strongest drive.'