Dressed in a chic black dress with a bustier-style top, Jessica Simpson was busting out -- and then some! -- during her dinner date with boyfriend Eric Johnson Thursday night.

The mom of two and her baby daddy were on a triple date with Jessica's sister, Ashlee Simpson and her boyfriend, Evan Ross, plus newlyweds and new parents, Jess' best friend, CaCee Cobb , and husband, Donald Faison.

The trio of friends went to Mastro's Steakhouse for their fun night out. All three of the ladies were dressed in black while, for a change, it was the guys who had more variety with their wardrobes.