United Kingdom, June 17 -- Barbra Streisand "can't remember" if she had sex with Warren Beatty.

The 83-year-old singer and actress recalls sleeping alongside the Dick Tracy actor once, but to this day she isn't sure if they got jiggy with it between the sheets.

She told The New Yorker: "I know I slept in the bed with him, but I can't remember if we actually had penetration.

"I swear to God, I can't. There are certain things I block out."

While Barbra can't remember whether she and Warren were intimate that evening, the pair remain pals and they engage in a "wonderful" conversation about their lives on her birthday every year.

She said: "But I know we're still friends. Every year on my birthday, he calls me and we have a wonderful tal...