Madonna has refused to rule out adopting another child, hinting she may return to Malawi to bring another youngster into her family.
The pop superstar has a 13-year-old daughter, Lourdes, from her relationship with Carlos Leon, and Rocco, nine, with ex-husband Guy Ritchie.
The former couple travelled to the African country of Malawi in 2006 to adopt son David Banda, and after their divorce was finalised in 2008, Madonna returned to take home little Mercy James this year (09).
And when asked whether she would ever adopt another child, the pop superstar replied, "Never say never. I have four children now and I'd like to think I'm a good mother."
During the interview with British TV show GMTV, the singer also admitted she misses living in London since she moved back to her native New York after splitting from Ritchie.
She added, "I miss being able to walk around the neighbourhood. It's more mellow, laid back and relaxed (in London) than it is in Manhattan."