Article continues below advertisementJennifer Aniston welcomed her 57th birthday alongside her boyfriend, Jim Curtis, and sources reveal that she feels content and fulfilled with their relationship. A source dished that Aniston, who has been linked to Curtis since the summer of 2025, finds great joy in their low-key lifestyle.Article continues below advertisementSource: @jenniferaniston/InstagramJennifer Aniston celebrated her 57th birthday with boyfriend Jim Curtis.