I'm cuck wannabe and secretly bi, I'm very sub with men and I have a cock cage I keep hidden from the wife, I love the feeling of being locked in a cage. I only wear it for short periods of time, usually if I'm in the booths or a theater playing, or if I'm home alone and chatting etc.. It's all fantasy and fun for me, it's unfortunately something the wife was not interested in, it came up briefly while watching a sitcom with a very direct comedic refence to chastity and when I made mention in a sexual way, I got the "ewww' response and that was pretty much it.
I ended up buying a cage and immediately loved it and how it made me feel, you are truly denied and although I can't imagine wearing one 24/7, I enjoy the mental game and how horny it makes me to wear it and how amazing the feeling of denial and the pressure of my cock as it's straining as I'm sucking someone off or just looking at porn, chatting etc.
I have a regular married guy I lock up for and I love to hand him the key when he comes in the booth, I know he'll give it back and I have another at home just in case, but it's however long it takes him to cum that I don't have the key, and he has control over my cock and he knows I will submit and do what he wants to get it back, I find that so hot and I think about it all the time.