Aniston wore a flowy black mini dress, pairing the simple but sexy frock with open-toe stilettos to highlight her toned, sun-kissed legs. She completed the look with a chic leather handbag and turquoise heart pendant, keeping her caramel-colored tresses sleek and straight.
Theroux complemented his wife's stylish ensemble, donning his signature dark wash jeans and suede boots combo with a Yves Saint Laurent polo shirt and gray beanie.
Inside the party, the two were joined by Jason Bateman, as well as Aniston's former Friends co-star, Courteney Cox. The 53-year-old actress went with a more casual outfit, a jean jacket over a black-and-white polka dot dress and black glasses, but still looked equally fabulous and filler-free.
Earlier this month, Cox revealed she's "as natural as can be" after deciding to lay off the fillers. She told NewBeauty she grew up thinking "appearance was the most important thing," but has learned over time that she "made things worse" by trying so hard to keep up with Hollywood's beauty standards.
"I feel better because I look like myself," she explained. "I think that I now look more like the person that I was. I hope I do. Things are going to change. Everything's going to drop. I was trying to make it not drop, but that made me look fake. You need movement in your face, especially if you have thin skin like I do."