This mama-times-two is making her first outing!
The 30-year-old beauty, who is also a mom to 6-year-old Bronx from her first marriage to Pete Wentz, looked gorgeous in a black dress teamed with fancy sky-high heels. The mother of two wore her blond hair down in her signature bohemian style and added bold red lips for a pop of color.
Simpson and Ross enjoyed a night out without their newborn baby in honor of the Hunger Games star's 27th birthday. They were joined by a number of pals, including Evan's older sister Tracee Ellen Ross, at Matsuhisa sushi restaurant in Beverly Hills.