So, I have an admission. Obviously Episode 9 is not released yet, but I'm calling it now.
I was wrong about one of
the Vixens.
She:
View attachment 1964912
...is not Kylie:
View attachment 1964914
While researching a post on how some of characters' names are too similar (I'll do that one some other time), I re-watched a scene that I had forgotten included Kylie:
View attachment 1964959
From this shot, their differences are far more clear (the chest birthmarks, the eyebrows, facial freckles, etc.). So, with no better candidates, maybe it is Mystery Girl after all:
View attachment 1964969
Side note: Man, what a difference hair makes (and lighting and makeup).
View attachment 1964914
vs.
View attachment 1964921
Not that she looked bad before, but still...