It's a little boy for Mr. Big.

"Sex and the City" and "Law & Order" star Chris Noth and longtime girlfriend Tara Wilson have welcomed a son, People magazine reported on its web site Sunday.

Orion Christopher Noth was born in Los Angeles on Friday, and weighed 7 pounds, 10 ounces, a representative for the actor told the magazine.

Mother and baby are reportedly doing well.

Noth, 53, starred as Mr. Big in the HBO hit for four years and is currently filming the "Sex and the City" movie. Most recently he has been seen as Det. Mike Logan in "Law & Order: Criminal Intent."

Noth will appear this year in the independent drama "Frame of Mind," in which Wilson has a supporting role.