Came across this picture and I reblogged it on my own Tumblr:
Hubwife is probably as submissive as "they" come but, I can't say for sure that being in chastity and not having as many orgasms as she used to is what turns her on the most.
Editors note: Chastity does not prevent orgasms. Most submissives in chastity probably have cum while caged, either on their own or with assistance from someone else.
However, there's also plenty of enjoyment on the part of the Dominant Keyholder as well. It's a different type of enjoyment, more cerebral for the most part, but it's present nonetheless.
Of course, we can make it physical if we want to.