Bruce Jenner has known for years that he wanted to transition from male to female, but click through RadarOnline.com's gallery to see his children's first reactions when he told them about his sex change.
EXCLUSIVE: **PREMIUM RATES APPLY** Bruce Jenner looks very sad as he smokes a cigarette in his car the day InTouch magazine publish a story about his alleged transition to a woman on the cover.
Bruce Jenner's decision to transition from male to female was deeply personal, but he shared the news with his children before revealing to the public his desire to have a sex change.
Bruce Jenner sits down with Kylie and Kendall
"Bruce told Kendall and Kylie last April," a source told Heat magazine about his revelation to his teenage girls. "He wanted them to get used to the idea and lined up a dedicated therapist."
Bruce Jenner comforts Kylie with a Kiss
"They'd heard the rumors, but they were still shocked," the source said of his two youngest daughters. "Kylie ran out of the house while Kendall just went silent."
*EXCLUSIVE* Bruce and Brandon Jenner enjoy Sunday brunch
But their big brother Brandon was there to support his dad, and he reportedly "took Kendall for a walk on the beach to talk it through."
Kim Kardashian and Bruce Jenner have lunch at Little Next Door
Inappropriate response or is (nervous) laughter the best medicine? Kim and Kourtney Kardashian have both considered Bruce a second dad, but when he told them the news they "were so shocked, they both laughed," Heat magazine claims.
Kris and Bruce Jenner hold hands at LAX
But it wasn't the first time they had heard that the Olympic gold medalist wanted to have a sex change. The magazine reports that Kris Jenner had told the girls before Bruce could reveal the news. They allegedly laughed then too.
*EXCLUSIVE* Khloe Kardashian gets some Father-Daughter Time with Bruce Jenner
According to the magazine, Khloe Kardashian's laughter when Bruce told her he was becoming a woman was a "defense mechanism" that helped her process and deal with the shock.
The news wasn't exactly a family secret. Linda Thompson — Brody and Brandon's mom and Jenner's ex-wife — told the boys about his desire to live like a woman a few years ago, Heat claims. "So when Bruce told them himself, they were supportive."
Brandon & Leah EP “Cronies” Release Party
The brothers "had known for a while and just wanted their dad to be happy."
Even though the children were all told about Bruce's transition off-camera, an insider revealed that their reactions were "recreated" for Keeping Up With the Kardashians cameras, and all the reality stars put on their best "shocked" faces.