FORT LAUDERDALE, Fla. -

Dr. Ruth shared the stage Thursday with the actress who is portraying her in a new play chronicling the sex therapist's life.

Debra Jo Rupp, perhaps best known for her role as Kitty Forman in the popular FOX sitcom "That '70s Show," stars as the title character in a new play called "Becoming Dr. Ruth."

The play charts Dr. Ruth's journey from a 10-year-old orphaned Holocaust survivor who fled the Nazis to her rise as America's arguably foremost sex expert.

[WEB EXTRA: Clips with Dr. Ruth]

Rupp and the sex guru answered questions from audience members after a matinee performance at the Parker Playhouse in Fort Lauderdale.

Ruth called Rupp "a brilliant actress."

"Becoming Dr. Ruth" premiered Wednesday and runs through Mother's Day.

To purchase tickets to the play, click here.