A kink is classed as catch all term for a range of consensual practices.
You should probably spend less time submitting with no free will and more time reading a dictionary dear.
A kink has very little to do with anything consensual for the record. A kink is a strong desire outside what would be considered '
the norm', and to educate you further, a fetish would be an obsessive necessity for it, both usually including and defining mostly pleasure. An example being,
enjoying being suffocated...and
needing to be in order gain pleasure.
So I really fail to see how being a Dom, a Sub or a supposed switch has anything to do with that when as the other poster said, they are a state (of being), a trait and a very part of your personality. That is not a kink dear, neither is D/s normally about pleasure either.
As for switches, well it is a relatively modern term (given the term BDSM was only widely used at the start of the nineties) brought about by younger generations that absolutely have to have a term for literally everything, a little like cisgender. You're not cis, you're just a normal average person. You're not a switch, you're just a normal average person who likes a bit of kinky sex either way.
If you are not a
Dominant or a
Submissive then, well, you're just not anything really and make no mistake, a bit of kinky sex a Dominant or Submissive does not make.