Jennifer Aniston wore a short and sexy sparkly black Balenciaga dress for Thursday evening's premiere of Horrible Bosses in LA. She joined the guys of the movie, including Jason Bateman, Jason Sudeikis, Charlie Day, and Jamie Foxx, as well as their costar Modern Family's Julie Bowen for their big red carpet screening. While Jennifer's boyfriend Justin Theroux didn't pose with her, he was reportedly around for the event. Jennifer is home in California after spending a week doing press for the movie in NYC. He was by her side on the East Coast, where we got our first super sweet photos of Jennifer Aniston and Justin cuddling out at dinner one evening. Jennifer and Justin are back in time to spend the holiday weekend together on the beach in LA, or perhaps they'll jet off on one of the bikini-filled getaways she loves so much.