Jessica Simpson pregnant car shots lace Eric Johnson ashlee simpson simpsonpt2011812_06-fullfix.jpg

Jessica Simpson's due date is only months away, and the pregnant songstress and her fiance Eric Johnson are taking advantage of their adult time before their baby arrives.

The "Irresistible" singer, looking extremely pregnant, rocked a short dress and Louboutins while grabbing dinner at Mastro's in Beverly Hills with sister Ashlee and beau of six months, Vincent Piazza.

We have a feeling Ash can't wait for her son Bronx to have a little playmate. Jessica is due this spring.

Jessica and fellow fashionista Nicole Richie will both be starring as “Fashion Mentors” on the new NBC show Fashion Star.