Relatives of Carrie Fisher and Debbie Reynolds Open Up About Grief and Their Unbreakable Bond

"You could feel it in her tiny little body that she would not last on this planet without Carrie," Joely Fisher said.

Carrie Fisher’s grieving sisters have spoken out for the first time about the death of the beloved Star Wars actress.

Read: Together Forever: Debbie Reynolds and Carrie Fisher to Have Joint Funeral

Joely and Tricia Leigh Fisher sat down with ABC News to talk about the family's heartbreaking four-day Christmas vigil together with the When Harry Met Sally actress’ mom, Debbie Reynolds, as they prayed for Carrie’s recovery.

"Getting to have her one-on-one and not have to share her, that is what I will think of and what I will miss," Joely said. "I sat with Debbie and she said she was praying for more time. She said she was praying for more time. I knew that if Carrie was not going to survive this, neither was Debbie.  

Reynolds was died of a fatal stroke, one day after Carrie's death.

Carrie, Joely and Tricia Leigh share the same father – Eddie Fisher, who was Debbie Reynolds’ first husband. Their mother is 60s sex symbol Connie Stevens

Joely added: "You could feel it in her tiny little beautiful body. You could see it in her face. She would not last without her on the planet. She wouldn't, and she didn't."

Carrie's daughter, actress Billie Lourd, has also broken her silence, posting a touching photo of herself as a little girl with her famous mom and grandmother.

Read: Debbie Reynolds Talks Death in Final Inside Edition Interview: 'I'm Going to Act Silly Until I Kick It'

“Receiving all of your prayers and kind words over the past week has given me strength during a time i thought strength could not exist,” she wrote.

Fisher’s Star Wars co-star Mark Hamill wrote a touching but honest tribute in The Hollywood Reporter about their relationship.

He penned: “She was a handful. She was high maintenance. But my life would have been so much drabber and less interesting if she hadn't been the friend that she was.”

Watch: The Illustrious Career of Debbie Reynolds That Spanned 7 Decades