For being a member of one of the most famous families in the world, Caitlyn Jenner's oldest son Burt keeps a low profile.
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In a recent interview with Esquire, the 37-year-old racecar driver reveals he has know about Caitlyn's "secret" for the past 25 years.
%shareLinks-quote="A lot of people don't know that this is something that I've known now for, I think, 25 years." type="quote" author="Burt Jenner" authordesc="Esquire" isquoteoftheday="false"%
Although the oldest Jenner doesn't necessarily want to be part of the reality show circuit, he wants people to know he has always been a supporter of his father.
"Before I was allowed to tell anybody, or before my dad even knew that I knew, I went and marched on behalf of Prop 8 through the streets of Los Angeles," Jenner told Esquire.
%shareLinks-quote="I've always tried to be an outspoken supporter of the LGBT community." type="quote" author="Burt Jenner" authordesc="Esquire" isquoteoftheday="false"%
See the evolution of the Kardashian/Jenner clan:
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