The Friends star and Sandra became friends after meeting through mutual pal Gwyneth Paltrow. The two are regularly spotted out to dinner together or vacationing.
Sandra even took boyfriend Bryan Randall as her date to Aniston’s wedding to actor Justin Theroux in August 2015.
“Sandy and Jen have sat up into the night talking, sipping wine, commiserating,” the insider further dished to Radar. “They’ve really bonded and now consider themselves best friends.”
“Sandy never really had a woman friend before besides her sister and she appreciates having one now.”