I have a childhood friend who I still keep in touch with who knows about my secret. I told it to him while I was padded and he was in the house while I was home alone. The reaction of me telling him after all these years was not expected at all. He accepted it well enough and he was sworn not to tell anyone else. Anyway, he expressed curiosity in wanting to know what they felt like and so since I had some diapers lying around I started with giving him a pull-up to try out. He liked it, but due to his shy bladder, he could not wet the pull-up no matter how many methods we tried. By the way, his shy bladder was shier than mine when I first started wearing for my desires so that could have been part of the problem. After trying multiple times during a single week, we stopped and dropped the subject from our conversation.
I resumed the conversation with him recently and he is no longer interested, however he understands that I have this desire and that is who I am so he will not tell anyone.