So I've been dating this amazing girl for the last few months and I couldn't be happier. This is my first two relationship, and she is much more experienced than I am, and I'm happy to let her take the lead in the bedroom. We do PIV, but mostly cunnilingus since I struggle with PE/ED and size. We've also been dabbling in some kinky dirty talk and one of her kinks is denial. So recently she had floated the idea of locking my penis in a cage, and I would need her permission to be released for any reason. I've never heard of anyone doing this so I would love she outside perspective. Overall I trust her and I'm leaning on accepting since I love making her happy. Does anyone have experience with this kind of arrangement? There is a part of me who worries I'm giving up control of my masculinity but this might just be societal programming.
EDIT: I'm also a bit worried about what others might think of they find out