Check Out Jessica Simpson’s (Bridesmaid) Body After Baby

Jessica Simpson sure can rock a bridesmaid dress.

The mom of two – she and fiancé Eric Johnson welcomed son Ace Knute June 30 – walked down the aisle in publicist Lauren Auslander’s wedding on Friday in Newport, Rhode Island.

If the bridesmaid look seems a bit familiar for Simpson, 33, it should … she was maid of honor for best friend CaCee Cobb in December.

The day after the wedding, the Fashion Star mentor, who also has a 17-month-old daughter, Maxwell, with Johnson, Tweeted a photo with her future mother-in-law.

Wrote Simpson: “Beautiful morning with my future mother-in-law and MoJo to my babies.”

No final word yet on when she and Johnson will make it official!

People Magazine