WATCH: Melissa Gilbert Tells Sister Sara: I Always Knew You Were Gay

Call it sisterly intuition. Melissa Gilbert told Sara Gilbert and her colleagues on The Talk (CBS, weekdays, 2 p.m. ET) that she always knew her younger sister was gay.

Co-host Sharon Osbourne asked The Little House on the Prairie star exactly when she knew Sara, who recently confirmed she's dating Linda Perry, was a lesbian. Although the question seemed to make 36-year-old Sara uncomfortable, the audience responded eagerly, clapping and laughing.

"You know what, I'll put it to you this way," said Melissa, 47. "I took her to dinner when she was in her teens and I sat her down and I gave her this long speech about how much I love you and it doesn't matter and you're my darling and blah, blah, blah and you can tell me anything. And she looked and me and she said, 'I'm not gay.' And I was like, 'OK, whatever.'"

But big sister Gilbert vividly remembers when Sara was finally ready to come out.

"Years later she called me and we were having a conversation about something and she said, 'You know, what if I just said that I'm gay,' and I went, 'And?' I mean I think always I kinda knew."

Sara, who looked ready to change the subject, said: "Don't we have a break coming up?"

Watch the interview:

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