Sean Penn and Petra Nemcova secretly date in public

May 16, 2012 at 4:55 p.m. ET

Sean Penn is dating Petra Nemcova... again. The pair had a brief fling in 2008 but sources say Nemcova and Penn are heating up New York.

Petra Nemcova and Sean Penn are dating.

Petra Nemcova and Sean Penn are dating. Us Weekly reports Penn and Nemcova rekindled their 2008 romance last week at singer Bono's birthday bash. A witness told Us Weekly the pair was "holding hands." A separate source says Petra Nemcova recently split from British actor Jamie Belman in April. "Petra started going on dates with Sean right after the split."

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In late April, a source told the New York Post Petra Nemcova and Sean Penn met for a cozy dinner at an Upper East Side restaurant in Manhattan. Their source says Petra and Sean looked like they might be together, at least for the night. "Petra was all over him like crazy. She was rubbing his shoulders and rubbing his leg. She was hanging all over him." The source continued, "Sean looked like he was playing it cool. But they did leave the restaurant together." It's not clear if Petra Nemcova is Sean Penn's girlfriend or if the two are just having fun.

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The 32-year-old supermodel tragically lost her fiancé in the 2004 Thailand tsunami but found love again with Belman. The pair announced their engagement in December of 2010. Ironically, that same year Sean Penn officially ended his marriage to actress Robin Wright. Penn and Wright were on-and-off for 20 years following Penn's divorce from Madonna in 1989. In 2011, Sean Penn was briefly linked to Scarlett Johansson following her split from Ryan Reynolds in 2010.

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