In photos obtained by Daily Mail, Aniston, 53, and Cox, 57, were spotted leaving the Sunset Tower Hotel in West Hollywood on Tuesday, April 12, after dining at Tower Bar.
Both of the actresses kept things casual for the dinner date, as the Scream star rocked light-wash flare jeans with an oversized blazer around her shoulders, while the blonde beauty looked chic in a cropped black blazer over a button-up blouse.
Cox has also remained in touch with the third leading lady on Friends, Lisa Kudrow, who is famous for her role as Phoebe Buffay on the sitcom, as the two women posed for snaps together last month while attending the premiere of Cox's new horror series, Shining Vale.
Both sightings of the former costars come in the midst of reports that the three women — along with the rest of their costars including David Schwimmer and Matt LeBlanc on the NBC show — are reportedly shaking in their boots over the upcoming release of Matthew Perry's bombshell memoir.
Perry's book, Friends, Lovers and the Big Terrible Thing — which will hit shelves later this year — is expected to be chock-full of shocking revelations about the actor's life, including his struggle with substance addiction and all of the tea involving his former castmates, which reportedly has his fellow actors freaking out.
"The word is he's going to unload on the whole crew, which has everyone in a panic," an insider previously dished to OK!, adding, "Perry figures it's time to come clean not just about his own life, but also about the good, the bad and the ugly things that happened on the Friends set."
And as for how the rest of the gang feels about the memoir news, Perry, 52, reportedly "couldn't care less" about their reactions, as he has no plans "to hold back."
"They weren't as close as people think. Their characters were so tight, but the reality is there was a lot of tension and jealousy. Matt seemed to be the odd one out," the insider added, noting that the upcoming memoir release "has the whole squad sweating bullets."