Over the weekend, the A-list couple attended a special event in Mexico with pal George Clooney for his alcohol brand Casamigos Tequila.
The annual brunch was held at the El Dorado Beach Club in Los Cabos, Mexico, yesterday. In addition to Clooney, Aniston and Theroux, Jimmy Kimmel, Howard Stern, and Casamigos partners Mike Meldman and Rande Gerber and Gerber's wife, Cindy Crawford, were all in attendance, as was Michael Phelps, who shared an Instagram pic of a tequila aging barrel.
"It was for members of the club and special guests," a source tells E! News of the bash. "They had a tequila tasting."
And the week before, Aniston and Theroux partied with Clooney at a different pre-New Year's bash.
"George got down to Cabo around Christmas and had a party a couple days before the new year at his home," the source says. "It was an intimate dinner with close family and friends."
All the same celeb guests were in attendance, including Aniston and Theroux.
It appears that Clooney is still enjoying himself while on vacation in Mexico. Yesterday, the Casamigos Tequila Facebook page shared a photo of the Oscar winner making a cocktail with the caption, "George mixing some 'Bloody Amigos' for some friends at the 4th hole."
Aniston and Theroux arrived in Cabo San Lucas just after Christmas for a romantic getaway together. Last week, the lovebirds were snapped soaking in the sun by the pool and packing on the PDA while enjoying each other's company (sans Clooney and friends, of course).