October 05, 2011 05:55 AM

Guess things are going well! Pete Wentz and new girlfriend Meagan Camper shared dinner with five friends – including Cougar Town actor Dan Byrd – at 35 Steaks + Martinis restaurant inside Las Vegas’s Hard Rock Hotel. The group devoured a slew of appetizers, and Wentz, who sipped soda throughout his meal, was very affectionate, rubbing Camper’s back and sneaking kisses at the table. “They are totally goofy around each other, and she seems so happy to be with him,” an onlooker tells us. “You can tell he is really comfortable around her.” After the meal, the group headed to Vanity Nightclub, where they danced late into the night. – Mark Gray and Jessica Wedemeyer

NEXT: Brody Jenner’s Weekend of Clubbing – and Bacon-Topped Ice Cream Sundaes >

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