It’s the biggest “secret” in reality TV’s royal family since Caitlyn Jenner. As Quibi hypes, the eight-episode first season of “Kirby Jenner” chronicles the “daily life of Kirby Jenner, the fraternal twin brother of Kendall” and “features Kirby’s interactions with all members of his blended family, including sisters Kourtney, Kim, Khloé, Kendall and Kylie.” “It’s kind of a reality show like “Keeping Up,” except it follows me,” Kirby, 24, tells The Post from his mom Kris Jenner’s home in Calabasas, California. “It was fun showing the world what we all do behind closed doors.
And it’s pretty wild and I’m excited for you to see it.” Non-spoiler alert: There also are some surprise star-power cameos in the show, which deadpan Kirby and kompany