updated 11/18/2010 AT 9:00 AM ET
•originally published 11/18/2010 AT 11:30 AM ET
“He’s wonderful,” Ashlee Simpson-Wentz told PEOPLE of Jessica’s new fiancé at the launch party of Google’s Boutiques.com in New York on Wednesday. “They’re so easygoing together. They really bring out the best in each other. It’s beautiful.”
Ashlee, 26, says she and the family are “beyond excited” about the upcoming nuptials, but adds that the wedding planning hasn’t really started yet. “Right now we’re just really enjoying the engagement and their happiness,” she says.