Yeah, this got me thinking. I've been reading fiction by women about women (knowing that was what it was) since I was nine (Robin McKinley was my earliest and most obvious influence when i started to write), and I've considered (white) gay males to be normal as protagonists since The Last Herald Mage trilogy. I have to actually stop and think to consider books about white straight women or white gay men as still politically contentious, despite the heaps of evidence saying that there are still readers biased against them. And while it's plain the heroine of The Privilege of the Sword is bisexual, again, it still sort of slips under my radar for these kinds of lists until I think about it.
Thus also, say, not mentioning Lynn Flewelling or Sarah Monette. Even seeing as how Monette shares a shelf with her occasional co-writer.