Ashlee Simpson & Vincent Piazza’s PDA-Filled Party Night

Jeff Kravitz/FilmMagic

09/15/2011 AT 10:00 AM ET

Cute couple alert! Ashlee Simpson and beau Vincent Piazza stuck together at a party celebrating Christina Ricci’s Nylon cover at newly opened New York eatery Catch. And the two weren’t hiding their affection, an onlooker says. They were even spotted making out during the next stop of their evening at 1Oak.


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