Jessica Simpson looked tiny and gorgeous in a tight black dress on Friday, June 20 Credit: Courtesy of Jessica Simpson

Her hard work keeps paying off! Jessica Simpson wowed in a tight black dress during a fun get-together on Friday, June 20. The Weight Watchers spokesperson—set to wed fiance Eric Johnson on July 4—posted a picture of herself and pal Stephanie Terblanche looking nothing but gorgeous via Instagram on Friday, June 20.

"Happy to have you @baylormcg Let's party!!!! Wahoooo," the 33-year-old wrote. Simpson's one-shouldered dress gave a glimpse at her long legs and accentuated her tiny waist. She accessorized the glamorous look with matching dangling earrings and gave her blonde locks extra volume with a half-up hairstyle.

The mom of daughter Maxwell, 2, and son Ace, 12 months, is just two weeks away from tying the knot with the former NFL player, 34. Hopefully for the bride-to-be, however, she's finally nailed down their wedding venue.

Earlier this week, an insider exclusively revealed to Us Weekly that the pair have booked Santa Barbara's 78-acre Bacara Resort & Spa "for now" but "Jess keeps going back and forth on locales." Either way, one thing is for certain: Simpson will look stunning in anything she decides to wear on the big day.