Mistress Ayn, Thanks so much for responding to the OP. That's super interesting that's it's not something they would have thought about in terms of Ds. What exactly do you think they were "blown away" by? Was it how submissive such an activity could be for a sub or was it the honor of being that close to such a special place or was it the breathplay aspect?

So we have evidence that female sitter / female sittee can be enjoyable for the female subs.

Still wondering about the other two iterations...