Sex And The City’s Cynthia Nixon and her fiancée Christine Marinoni showed off their beautiful baby boy Max in New York on Friday, and RadarOnline.com has the picture for you.

Max Ellington Nixon-Marinoni was born February 7 to Marinoni, 43. The child's biological father remains a mystery.

Nixon -- who announced her engagement to Marinoni in 2009 -- has two children, Samantha, 15, and Charles, 8, from her ex of 15 years, Danny Mozes.