Cynthia Nixon Shows Off Newborn Son

Cynthia Nixon has another redhead in her family.

The "Sex and The City" star (who is naturally blond), and her partner, fiancée Christine Marinoni, showed off the first photo of their newborn - Max Ellington Nixon-Marinoni, on Sunday.

PLAY IT NOW: Inside The 2010 New York GLAAD Media Awards

Christine, 43, gave birth to Max, last Monday and he has a shock of red hair, just like his biological mom.

Cynthia announced her engagement to Christine in May 2009 while at the Love, Peace and Marriage Equality rally in New York City, saying at the time, she had become engaged the month before.

VIEW THE PHOTOS: Sassy ‘Sex And The City’ Siren Cynthia Nixon

The couple began dating in 2003, after the star split from husband Danny Mozes, with whom she has two children - Samantha, 15, and Charles, 8.

Cynthia currently stars in Showtime's "The Big C" alongside Golden Globe winner Laura Linney.

Copyright 2011 by NBC Universal, Inc. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

VIEW THE PHOTOS: Hollywood’s Hottest Moms & Their Loveable Little Ones