Jessica Simpson donned short shorts and high heels on Saturday to join friends for lunch and a session of shopping at Saks Fifth Avenue in Beverly Hills. After welcoming her daughter, Maxwell Johnson, back in April, Jess took time off from her designing duties to focus on motherhood. It seems Jess is back to work, though. She spent Thursday back on the set of Fashion Star and tweeted on Friday, "Long day at work. Too lazy to wash my face off before bed!" Jess is also making room for fun. Jess tweeted about loving Argo, calling it "by far the best movie I have seen in over a year — maybe 2 years!"