Jennifer Aniston and Justin Theroux were back in the sun for another day of relaxing in Cabo yesterday. Jennifer lounged in two different bikinis as she read a book, while Justin went shirtless to work on his computer outdoors. They were joined once again by pals Emily Blunt and Molly McNearney, though they took a break from the group to engage in PDA poolside. Jennifer and Justin have met up with other friends during their Mexican vacation and reportedly dined out with George Clooney and Stacy Keibler at El Dorado resort. Stacy's been partying with her own buddies, including Dave and Odette Annable and Michael Phelps, who recently split from girlfriend Megan Rossee. All the stars south of the border rang in the New Year last night, as did Kim Kardashian and Kanye West in Las Vegas, and Jay-Z in Brooklyn.