There is definitely a fuzzy line between vanilla and kink though. I’m not really sure how to define kinky because you have to define normal/vanilla first. Some people would call doggie style kinky and some people won’t even engage in any sort of oral sex or allow someone else to give them oral.
99% an equal relationship, both go to work, keep the house clean, decide how the money she is spent etc. She just keeps him chastised and releases him as needed.
I always thought of it as someone who prefers the standard way, doesn't like variety or change. So a vanilla partner would rather avoid chastity all together, as it is outside their comfort zone.