Jessica Simpson and her younger sister Ashlee Simpson were together in LA yesterday for an afternoon of errand running. Their mom, Tina, went along for the jaunt as well, as the family enjoyed some girls-only hanging out. Jessica's fiancée, Eric Johnson, wasn't along for the fun, though he was by her side last week for a multiple-day trip to NYC that included an artsy evening out at the opening of Tom Everhart's Crashing the Party: The Arty-Fact Paintings exhibit. Jessica and Eric's getaway came in the midst of their wedding planning, which is going full-speed ahead with the help of their planner Mindy Weiss. The date of their big day is apparently set, with recent rumors suggesting the happy occasion will take place in Hawaii.