It looks like Ashlee Simpson and Pete Wentz have no reason to run off and elope. A day after the happy couple announced their engagement, Ashlee's family offered up heartfelt words of encouragement and support. "My sister is overflowing with joy," says older sibling Jessica Simpson. "Pete is an incredible soul. They naturally bring out the best in each other. I couldn't be happier." And she's not the only one in the family singing the Fall Out Boy bassist's praises. Pete did things the old-fashioned way, even asking for Ashlee's dad's permission to take his daughter's hand in matrimony. "[Pete] did ask me," says Joe. "I told him that I would be honored to have him as part of my family." The question now is: When's the big day?