Kim Kardashian has opened up about the time she walked in on stepfather Bruce Jenner dressed in women's clothes, years before his transition to a woman.
During an interview on The Alec Baldwin Show on Sunday the 30 Rock star recalled the time Bruce was the track coach at his daughter Ireland's school.
'When I knew him and he was married to Kris and would take the girls to school there was not a drop of Caitlyn in him,' Alec said referring to Bruce's new identity, Caitlyn Jenner.
Kim Kardashian talked to Alec Baldwin in an interview aired on Sunday about her stepfather Bruce Jenner's transition to a woman
'When I knew him and he was married to Kris and would take the girls to school there was not a drop of Caitlyn in him,' Alec said referring to Bruce's new identity, Caitlyn Jenner
'When it happened I was “What?” not with any judgement I just did not see it coming.' the 60-year-old actor added.
Kim also revealed that she didn't know for a long time but accidentally walked in on Bruce dresses in women's clothes.
She told Alec, 'Nothing. I found out when I was maybe 25 and I walked in on Caitlyn, I mean it was Bruce but dressed up as a woman in the garage at my mom's house,'
'I ran in and packed a bag so fast, I was shaking and ran out and called Kourtney and said “I have to come spend the weekend with you” and was hysterically crying.
Kim recalled: 'I was maybe 25 and I walked in on Caitlyn, I mean it was Bruce but dressed up as a woman in the garage,' She's pictured with Bruce, mom Kris Jenner and her siblings in 2007
Kim (pictured with Bruce in 2014) said she was sworn to secrecy about Bruce's secret, as she explained, 'He called me and said “One day I will sit down and explain all this to you but until then please do not tell a soul”'
'When it happened I was “What?” not with any judgement I just did not see it coming.' Alec said of his own shock at Caitlyn's unveiling in 2015
'She was like “What is it did you catch Bruce cheating?” and I was like “I wish. I don't know what I just saw.”
Kim revealed that Bruce addressed the matter with her and swore her to secrecy until he was ready to be more open about it.
'It was Bruce then and he called me and said “One day I will sit down and explain all this to you but until then please do not tell a soul and do not tell your mother she will kill me.”
'I didn't say a word.' Kim revealed she was worried about breaking up Kris and Bruce's marriage so decided to keep it a secret
Kim said that she did not want to break up her mother's marriage and leave her little sisters Kendall and Kylie without a father, so she kept quiet about it.
'I thought, “Okay, if I tell her I'm going to break up their marriage and my little sisters aren't going to have their dad around, so I better keep my mouth shut,' Kim said. 'I didn't say a word.'
Caitlyn unveiled her new identity to the world in July 2015 on the cover of Vanity Fair after months of speculation that the the former Olympic champion was transitioning to a woman.
New identity: Caitlyn, 68, is pictured on September 20 at an event in London with gal pal Sophia Hutchins
Asked how much Kris, 62, knew about Bruce's identity issue at the time, Kim said the duo, who were married from 1991 to 2015, and had daughters Kendall, 22, and Kylie, 21, together 'kind of avoided discussing it'.
'She was so in love,' the E! star said of Kris. 'She didn't think anything would be an issue in their relationship. Did she ever dream that [Caitlyn] would transition into a woman? I don't think that was ever something she would have dreamed in a billion years.'
'That's why I love that we did share our story on our show, because it gave people the understanding that you can have every different emotion and that's okay,' she added. 'At the end of the day, we just want Caitlyn to be happy and be herself.'
These days Caitlyn is estranged from the Kardashian women, with tensions flaring after the publication of Caitlyn's tell-all memoir, but still keeps in contact with her daughters Kendall and Kylie.
'Not in a billion years': Kim said her mom Kris Jenner didn't ever dream Bruce would transition to a woman