Courteney Cox has been trying to arrange a Friends reunion dinner for ten years.
The actress is famed for her portrayal of clean freak Monica Geller in the US sitcom, which also starred Jennifer Aniston, Lisa Kudrow, David Schwimmer, Matt LeBlanc and Matthew Perry.
The group are continually asked about whether they will get together for a film version of the show, which ended in 2004, with Cox concerned about the logistics.
"Let me tell you something: there's six friends and I've been trying to put together a cast dinner for ten years. It doesn't happen!" she laughed to David Letterman.
"I can get the girls to come, maybe Matthew Perry. Matt LeBlanc cancelled last time right at the last minute, Schwimmer lives here [in New York City], so it's just not gonna happen."
The 49-year-old made the admission after David raised the topic of a reunion.
He asked whether Cox was bored of continued questions about the series, with the brunette star attempting to deflect the question.
"Only because once you say, 'Well, I'd like it,' then they have to contact every other cast member and be like, 'Courteney's into it!' And then I get in trouble," she replied, when asked if she was sick of the topic. "It's not going to happen."
There has been intense speculation that the six stars could be teaming up for another round of Friends over recent months.
That grew legs when it was claimed Jennifer was starting to come round to the idea in December, but earlier this month the show's creator seemingly put the rumours to bed once and for all.
"I'm going to clear this up; it's not happening!" Marta Kauffman said.
"Friends was about that time in your life when your friends are your family, and once you have a family, there's no need anymore."
