Clasos.com / Splash News
Jennifer Aniston and Justin Theroux sure are finishing up 2012 on a high note.
The engaged duo shared a passionate kiss Sunday in Cabo San Lucas, Mexico. Looking cute and casual in a purple T-shirt, the Friends star wrapped her arm around her fiancé as she leaned in for a smooch.
Check out Jen's hot bikini bod
Jen and Justin weren't totally solo on their vacation though. The Wanderlust loves hung out Thursday with Emily Blunt, John Krasinski, Jimmy Kimmel and fiancée Molly McNearney.
These A-listers sure know how to relax!
See more pics of Jen and Justin smooching