Jessica & Ashlee Simpson Celebrate Daddy's Birthday

Treating herself to a lovely dinner out, Jessica Simpson was spotted at Mastro’s Steakhouse in Los Angeles last night (January 18).

The “Come on Over” songstress looked like she was ready to pop as she showed off her pregnant belly in a black and sliver dress.

Jessica was joined by her fiance/babydaddy Eric Johnson, as well as her sister Ashlee Simpson and boyfriend Vincent Piazza.

The Simpson ladies and their gentlemen were in the house to help their father Joe Simpson celebrate his birthday.

Enjoy the pictures of Jessica Simpson and Ashlee Simpson with their men at Mastro's Steakhouse (January 18).