Mattress. That’s a gender-neutral dom, according to at least one enby I know. “Yes Mattress.”

It also helps remind them not to take things too seriously. :)

That would just take me completely out of the moment :-/

I’ve also heard “mastress” and, as others have commented, “mixtress”

Mattress is my fave but the joy is we don’t all have to agree on one single universal term :)

Oh, now that one I like - I might make use of it :-)