Debbie Reynolds told her son she wanted to "be with Carrie" in the moments before she passed away.
Todd Fisher - who lost his mother Debbie and sister Carrie Fisher within days of each other in December 2016 - felt his mother was preparing him for her passing.
He recalled: "My mother said, 'I know that's tough. It might be tougher even, you know ... I don't know for sure when I [will] go.' I was like, 'Well, look, fortunately we don't have to face that right now, you know, we just face this.' But then she was like asking my permission [to go]. I [said], 'You're going to be OK, everything is under control.'
"And she starts running me back through her estate, which we had done many times. [She's like], 'You're going to take my dog and, you know, all these little instructions.' And [she] even [went through] last-minute changes due to the fact that Carrie left first, as far as the memorial service.
A public memorial service in honour of Carrie Fisher and Debbie Reynolds will feature music and dance tributes to the iconic stars.
The 'Star Wars' actress and her mother passed away within days of one another in December, and though they were laid to rest in a private funeral service, fans will now get their chance to pay their last respects on March 25.
According to TMZ, the memorial will be held at a 1,200-seat theater at Forest Lawn cemetery, where the pair are buried, and will include a musical tribute from Carrie's close friend James Blunt.
While the 'You're Beautiful' singer won't be performing, a new song he's written in honour of his late pal will be debuted as a photo montage is broadcast, Carrie's brother Todd told the website.
Also planned for the service is a dance tribute from the Debbie Reynolds dance school, and a musical performance from the Gay Men's Chorus of Los Angeles.
Additionally, costumes and memorabilia from the 'Singin' in the Rain' star and her famous daughter's movie sets will be on display.
Carrie's daughter, Billie Lourd, will be in attendance but won't address the audience because it is "too emotional" for her to give a speech.
And guest of honour will be Carrie's beloved dog Gary.
Todd announced in January that the public service would be taking place this month.
He said at the time: "We will be celebrating their lives with friends, family members, and the people who loved them, you. The service will begin at 1:00 PM and immediately afterwards, those who want to walk to their final resting place are welcome to do so.
"There are a limited number of seats available, and it will be on a first come first come, first seated basis, There are no tickets, it is first come, first seated. There will be room for overflow in the huge lobby as well as the outside with screens to watch and hear the service."
Kicking off the week with a massive movie event, the Walt Disney Pictures flick “Star Wars: The Force Awakens” rolled into the Dolby Theatre (and overflowed into the TCL Chinese and El Capitan theaters) last night (December 14).
It was the dawn of a new era in filmmaking, but “Star Wars” also had plenty of silly moments caught on film during production.
Harrison Ford, Mark Hamill, Carrie Fisher, Alec Guinness, and Peter Cushing all got caught up in their lines from time to time, and Lucasflim editor J.W. Rinzler compiled the footage into a fabulous blooper reel.