Colors in the Dark (To the Choir), by C.M. Decarnin.
What wrenlet said about it:
a lovely, erudite, roll-around-in-the-pretty-pretty-words comparison of slash to the phenomenon of "women's only" cultures through history. It begs the question, what of men who participate in slash? And I think that's a valid query... but when you get right down to it, women built this, and I don't believe acknowledging that fact pushes slash-loving men aside.
"Who built that building?" "Women." "Who lives there now?" "Anyone who wants to."
She knows how to summarize. Go read.