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While Bella is away, Edward will play! But after being caught with Sarah Roemer last December, you'd think he'd be sneakier about going out with pretty girls after dark!

Last night Rob Pattinson attended Katy Perry's Part of Me premiere after party at the Chateau Marmont in West Hollywood, and later he was spotted at David Arquette's new nightclub, Boosty Bellows with Raising Hope actress Shannon Woodward and Wildfox designer Kimberley Gordon. We're not going to jump to conclusions, but Kristen Stewart isn't going to be happy about this!

Rob's ladylove is currently in Paris doing a shoot for her new Balenciaga fragrance, so we have to wonder what she'd say about her boyfriend hitting the town with a crew of pretty girls. It still has to sting when you're 6,000 miles away...