So she crafted a new one for those ofNext Chapteralongside Caitlyn Smith and Troy Verges.

“And so that’s what it was.”

“We followed orders,” quips Bergen, before adding, “it was fun.”

Book Club: The Next Chapter

Mary Steenburgen in ‘Book Club: The Next Chapter’.Everett Collection

“It was wonderful.”

And filming it was as fun as it looks.

“We don’t always do this, but in that particular scene, [we imbibed].

Book Club: The Next Chapter

Diane Keaton, Jane Fonda, Candice Bergen, and Mary Steenburgen in ‘Book Club: The Next Chapter’.Focus Features

We felt that this was all real.

So we just had a good time.”

Adds Steenburgen more matter-of-factly: “We just wore [wedding gowns] and drank.”

Book Club: The Next Chapter

Mary Steenburgen, Candice Bergen, Diane Keaton, and Jane Fonda in ‘Book Club: The Next Chapter’.Focus Features

“My marriage in the movie is the long marriage,” reflects Steenburgen.

“And I myself have been in a 30-year relationship.

I related to it because of that maybe more than anybody, because it paralleled my own life.”

For Fonda, it was an opportunity to explore a story line she feels she rarely sees on screen.

Especially for older women.

“I thought, ‘Oh my God, that’s fabulous.’

It was a perfect way to handle that issue.”

The ladies have ventured to Italy, but would they want to re-team for a third project?

“Never say never,” says Fonda, before Steenburgen adds, “In a heartbeat.”

“We’d love to work together again,” says Bergen.

Turns out Steenburgen can’t only write her costars a song, but finish their sentences too.

Book Club: The Next Chapteris now in theaters.