Lisa Kudrow Reveals Something You Never Knew About 'Friends'

— -- Lisa Kudrow, 51, spilled some "Friends" secrets this past Wednesday night on "Jimmy Kimmel Live," and said the show was actually considered racy 20 years ago.

"When we were shooting the pilot, the network got really nervous 'cause Monica [played by Cox], she sleeps with, on the first date, with this guy," Kudrow said. "He didn't have a name. He was like the salesman guy. They were really nervous that the audience won't like her 'cause she's sleeping with him on the first date [and maybe think] it's slutty."

The network prepared a survey for audience members with questions about how the situation involving Monica and the salesman made them feel, Kudrow said.

"Most of them were like, 'It's fine!'" she said, adding that they seemed a bit irritated to have been asked questions like that.

Kimmel also asked Kudrow if her son Julian is old enough to watch "Friends."

"He's 16," she said. "He's old enough to know he's not interested."

Kudrow's appearance on Kimmel this week followed a special "Friends" reunion earlier in the year, where all the funny ladies from the show -- Jennifer Aniston, Courteney Cox and Kudrow -- stopped by the late night talk show to pay homage to the sitcom.

"That was so fun," Kudrow said. "That was a little weird. It was really good."