May 7, 2015 10:29 PM EDT

Bruce Jenner, the former Olympian who recently announced he was transgender, opens up in a new video promo for his soon-to-air television special about being honest with his children.

“I don’t think I’ve ever been as scared in my life as I was to be extraordinarily honest with my kids,” he says in the clip for the two-part E! special About Bruce, which will air on May 17 and 18. The one-minute clip includes intimate family moments between Jenner and his daughters, including Kylie—who’s heard saying “I do wanna meet Her, when he’s ready. When we’re both ready”—and Kendall, who says “I just don’t like when people say Bruce is gonna be gone.”

His response? “I’m not going anywhere.”

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