Baby joy for SATC star Nixon

Cynthia Nixon's fiancee has given birth to their son.

The 'Sex and the City' actress and her partner Christine Marinoni welcomed son Max Ellington Nixon-Marinoni into the world yesterday, their spokesperson has confirmed.

The representative said: "Christine and baby are doing great."

No further information has been given.

Cynthia, 44, has previously revealed how her kids Samantha, 14, and eight-year-old Charles - whose father is her former boyfriend Danny Mozes - are close to Christine and even call her mummy.

She said last year: "Maybe I'm just lucky, but I feel like Christine is so amazing with our kids - because they're our kids.

"I feel like falling in love with her is part of being amazed at how she makes our family so much better."

Cynthia and Christine started dating in 2004 and announced their engagement in 2009.