The Contact actress collected the Cecil B Demille Award at the January 13 ceremony and used her acceptance speech to speak about her love life for the first time.
"I hope you won't be disappointed that there won't be a big coming out speech tonight, because I already did my coming out a thousand years ago, back in the Stone Age," she joked on the Golden Globes stage.
Foster went on to say: "In those very quaint days when a fragile young girl would open up to friends and family and co-workers then gradually, proudly to everyone that knew her, everyone she actually met.
"But now apparently I'm told that every celebrity is to honour the details of their private life with a press conference, a fragrance and a primetime reality show."
Those comments have now drawn a response from Glee actress Lynch, who called Foster an inspiration for speaking so openly.
"It was really moving and touching," Lynch told TV Guide. "I loved that she shared a little bit about her inner life with us, and what she said about her mother [who suffers from dementia] broke my heart."
Lynch added: "I like the fact that she operates without telling everybody what she's doing. It was a big moment that she let us into her private thoughts, and I'm really grateful I was there for it."
Foster also appeared to suggest in her Golden Globes speech that she would no longer be accepting acting roles, but has since clarified that she won't retire.
"You'd have to drag me behind, like, a team of horses," Foster said. "No, I'm not retiring from acting. And, you know, I'd like to be directing tomorrow... I'm actually more into it than I have ever been."
Her next acting role comes in director Neill Blomkamp's sci-fi action movie Elysium, opening on August 9 in the US and September 20 in the UK.
Photo Gallery: Jodie Foster's Life and Career