Joan Rivers will not stop speaking her mind on any situation ever.

Actress Kristen Stewart reportedly threatened to sue Joan Rivers for saying her way to stardom was getting frisky with directors in her new book, "Diary of a Mad Diva," according to TMZ.

"Many stars only do one thing well. Of course, the best one-trick-pony is Kristen Stewart, who got a whole career by being able to juggle a director's balls," wrote the 81-year-old comic.

Although the book is a work of satire, the statement is written as truth, especially because of Stewart's very public affair with her married "Snow White and the Huntsman" director, Rupert Sanders.

Kristen Stewart's lawyer reportedly contacted Joan's people and threatened to sue for defamation.

"I am now being sued by Kristen Stewart. She obviously didn't read our disclaimer, which says it's a comedy book. I can't wait to get her into court because I'm gonna get a puppet and I want her to show me on the puppet where she thinks I claim she touched her director. I am looking forward to it," stated Rivers, according to MTV.

She continued, "Her lawyer contacted my lawyers, which shows the sense of humor she has. My answer to her was, 'Be glad you're not a Kardashian because they're mentioned a lot more in the book."

A source close to Joan Rivers reportedly told TMZ that they think Kristen's lawyer may have backed down from the whole case because there has been silence since the threat was delivered.

The outspoken comedian has reportedly made it clear that the passage will remain in the book, despite Kristen's feelings towards it.