With enclosed cages can get nasty. I like stainless steel that is more open (like with bars). Lather up, rinse off and you’re good. I can also ask to be released for a shower and manscaping a couple times a week. We’re sexually active 6/7 days a week so the cage comes on and off a good chunk of those times which can be opportunities to freshen the contents.
Kink and fetishes are largely in the head. The cage is more a symbol and a toy to accentuate her control. What she really wants is me to be lusting for her, it brings her back to when we were dating in high school and I was a horny teenage boy courting her.
I agree to not come until she allows it. I could cheat, but if I did that would just be violating her trust and breaking what we have going on. I love and respect her, so I follow what she asks of me. Afterall, I did ask to bring chastity into our dynamic, so why would I destroy that?