Jennifer Aniston Bikinis with Courteney & Sheryl (PHOTOS)

Does Jennfier Aniston know how to celebrate a birthday the right way or what?

The Baster actress, who turns 41 on Thursday, got a jump on marking the milestone this weekend in the best way possible—by slapping on the bikini and living it up in Cabo San Lucas, Mexico, with her pals Courteney Cox and Sheryl Crow.

The best part about it? The bathing beauties give us all a reason to celebrate! Let’s dive into the photo gallery and get the party started!