ASHLEE SIMPSON AND PETE WENTZ HOT

Ashlee Simpson and 'Fall Out Boy' Pete Wentz on the town !

Ashlee Simpson and Fall Out Boy bassist Pete Wentz spent Saturday night kissing and cuddling at the new L.A. hot spot Parc. At the club for a pal's birthday, Simpson, 22, and Wentz, 27, got cozy in a semi-hidden booth, holding hands, gazing into each other's eyes and smooching in between Simpson's dance sessions with a group of girlfriends. "They definitely weren't hiding the fact that they were together," said one onlooker. "They were making out a lot and they were pretty intense." Wentz told PEOPLE in November that although "Ashlee is the sweetest girl ever," they were "just friends." And in February he told Rolling Stone: "Maybe in a different universe, we'd be some hot couple, but not in this one." After their fun filled evening in front of clubgoers including The O.C.'s Adam Brody and Benjamin McKenzie (who at one point gathered with other friends around Simpson and Wentz's booth to sing "Happy Birthday" to the guest of honor), the pop star and the rocker left together, hand-in-hand.

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