The actress enjoyed some low-key b-day festivities on Monday at the Malibu estate of her former Friends co-star Courteney Cox. Aniston rang in her birthday surrounded by her closest gal pals, who all posed together for a photo commemorating the happy occasion.
"#happybirthday to my sister from another mother #jenniferaniston [love] u so much!" Aniston's manager, Aleen Keshishian, captioned the snapshot. Actress Mandy Ingber shared the same photo, writing, "Thanks @aleenkeshishian for posting this shot of these incredible women. We love our Jen. Magical Malibu day!"
Actress Andrea Bendewald, who was among the small group of women who attended the birthday party, celebrated Aniston's special day with a throwback photo from their early days as actresses.
"Happy Birthday to my best friend, twin from another mother, soul sister of the ages. Friends since we were 14 and still growing and learning together," she wrote. "You make the world a better place and life so much more enjoyable and a fun ride. Grateful for you everyday and in every way. #bestfriend #forever."