Caught in the Act

Kevin Jonas & Fiancée Celebrate Their Engagement Over Sushi

07/08/2009 at 03:00 PM EDT

Kevin Jonas, celebrating his recent engagement to Danielle Deleasa with a meal at Katsuya Brentwood alongside his brother Joe. And the off-the-market pop star was thrilled and "sitting super-close to his glowing fiancée," says an onlooker. "They were cuddling and sneaking in a few kisses." The group – which also included a friend of Deleasa's – enjoyed edamame and some specialty sushi rolls during the meal. (Read all about the engagement ring here.)