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Jennifer Aniston, Justin Theroux

EXCLUSIVE: Jennifer Aniston and Justin Theroux share a passionate kiss while on vacation in Mexico. Pictured: Jennifer Aniston and Justin Theroux Ref: SPL476043 301212 EXCLUSIVE Picture by: Clasos.com / Splash News Splash News and Pictures Los Angeles: 310-821-2666 New York: 212-619-2666 London: 870-934-2666 photodesk@splashnews.com

Stars Smooch on New Year's Eve

The stars rang in the new year with some hot kisses! Check out Taylor Swift and Harry Styles, Jennifer Aniston and Justin Theroux, Kim Kardashian and Kanye West, and other celebrity couples embracing 2013.