Instagram/Khloe Kardashian

How Kanye West Helped Kim Through Bruce Jenner's Transgender Revelation

Plus, find out what Kendall and Kylie had to say.

In a brave, historic "20/20" interview Friday night (April 24), Bruce Jenner revealed to Diane Sawyer: "Yes, I am a woman."

Since winning an Olympic Gold Medal in 1976, the 65-year-old athlete and reality star has lived his entire life in the spotlight. Today, he's probably best known for starring on "Keeping Up With The Kardashians" with his famous children and stepchildren. Jenner told Sawyer that finally revealing his gender identity to his children was "terrifying."

"I can’t let myself hurt them. How do I do this and not hurt my children?" he said. Jenner made it clear to his kids, "I’ll always be there. I’m not going anywhere."

The first child that Jenner told was 33-year-old Brandon Jenner. While he admitted that he's not handling the situation "perfectly," Brandon did say, "I feel like I’m getting an upgraded version of my dad."

When Bruce told his famous stepchildren -- Kim, Kourtney, Khloe, and Rob Kardashian -- their reactions were mixed. “You would think that out of all the kids, Khloe is the most open-minded," Jenner said. "She’s had the toughest time with it, because she’s had a lot of loss in her life."

For Kim, a major "breakthrough" came from an unexpected source: her superstar husband, Kanye West.

Kanye offered some much-needed perspective, explaining to Kim that if he had the "most beautiful" wife in the world, and the "most beautiful" little girl in the world -- which he does -- but he couldn't be "true to himself, they would mean nothing."

As for Kendall and Kylie, Jenner's youngest children offered the following statement to ABC: “We love our dad very much, he has the biggest heart and all we want is for him to be happy, if he’s happy, we’re happy.”

Kylie later tweeted that she'll have more to say later but reiterated her support for her dad.

Editors note: While Bruce Jenner has stated that he identifies as a woman, we have used the male pronoun throughout this article in keeping with his current stated pronoun preference.