3. Britney's bodyguard carries her older son, Sean Preston Federline.
2. Penn leans in for a smooth move.
Smooch! Hillary Duff & Penn Badgley Lock Lips On Gossip Girl
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 Hillary Duff and Penn Badgley kiss on the set of Gossip Girl. Photo: Startracks
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Smooch! Hillary Duff & Penn Badgley Lock Lips On Gossip Girl
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 Penn leans in for a smooth move. Photo: Startracks
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Smooch! Hillary Duff & Penn Badgley Lock Lips On Gossip Girl
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 Hillary cant help but crack a smile during the scene. Photo: Startracks
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Smooch! Hillary Duff & Penn Badgley Lock Lips On Gossip Girl
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 The two walk side by side before the big kiss. Photo: Startracks
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Smooch! Hillary Duff & Penn Badgley Lock Lips On Gossip Girl
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 The two actor rehearse the scene before costumes and makeup. Photo: Startracks
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