Transcript for Caitlyn Jenner opens up to Diane Sawyer
I'm breaking a good Diane sorry where she talked for the first time. About her transition phase generally serve back with a powerful new conversations and air on twinkling night. Take a first. Two years ago this is where it began. Bruce Jenner Olympic athlete famous dad on a reality show waiting just stunned the world by announcing inside he'd always been a woman. Greeted me at the door six foot two inches tall welcoming. And anxious. We never met before. You. It's going to be an emotional roller coaster but somehow harmony church and the moon Lisa come from the interview. Burrell a tough. That area and I'm still here. That's the critical. So Bruce Jenner is through tears telling about the secrecy and confusion that it blocked him into a kind of fortress his whole life. At a symbolic moment we're talking about all that stuff the pony tail came three. Are you a woman. Yes a for all intents and purposes I am a woman. And two years later as we pull up to a door at a house in Malibu someone Perry's different comes up to say hello. Welcome remember me I do. School for years casual and slightly taller in heels but still welcoming. And excited. I have to put walls up for awhile one. Yeah because the paparazzi but anyway are all down basic we have so much to talk about so puts it really been like two years on the path living as a woman. Is the rumor of doubt and regret true. We start with that question from two years ago slightly rephrase. Celeb. We start at the same question to hate lung Jenner is. Happy. Peaceful. Peace and my soul. All of that confusion. Has left me you told me two years ago that of the feminine side was a heart. Yeah. Shop. Do you ever have doubt that you did the right thing never. Never had a doubt Ike did the Wright tech do you miss being in groups. Not at all. Not now not even not even clutch. Not in close. Later today Simone joins us her support of older sister Pam I would love to see her have a companion. Some day. No idea what tendered can can't yet put the actually. Arm I'm not sure next person a nice person. I don't see really even dating and my future I have not been approached. I've never been out all right gate where two years. Yet he had never been I just have a lot of friends but doesn't necessarily. He'll lonely path my life revolves around my kids. And don't preempt my life until the day I die. Caitlin Jenner has agreed to show up in a backyard barbecue. Where we gather parents some of them think transgender kids should get to use the bathroom and locker rooms of their choice. Other parents here have deep concerns about that. This is holly who tells the group and doctor Ding her son a ninth grade student came home from school after someone was in the locker room. The first thing he said with mom I've got back means that he said she's always been a girl she's never been a boy and now all of a sudden she comes back. For the second second semester and says she's a boy. And she's using the points awkward polity is a devout mormons there are certain themes that. The religious community holds dear and modesty and privacy. That's that's one of those seen. There's always the fear of something new something unknown carlin's says his sounds familiar. My wife college basketball team didn't want to address with me I would go in dress somewhere else. Minutes later the most famous transgender person in the world derives and I Palin nice to say it has told the group she might count. I. A lot in the air we're gonna see tonight what happens in key in the rise of the barbecue she gets questions from. All sides that's right you can see Diane interview Kate when Jenner the secrets of my life on 20/20 tonight at 10 PM eastern. Right here on ABC and then Caitlin will be her live on GMA on Monday discussed all of this and her new book.
This transcript has been automatically generated and may not be 100% accurate.