I would have likely not noticed at all that the category was gone except that one of my stories (in the Spanking category) was removed.
The subject was two adult identical twins spanking each other at the behest of their shared boyfriend. Of course, the only way you naturally get identical twins is if they're sisters. There was no other sex acts (though it was implied there would be after the conclusion), and no previous history of any implied.
But they're sisters, despite having no previous sexual history and being adults and about to have a 3-way (meaning it's more like they're both having sex with him and less with each other). Still off limits? Fine.
But where's that line?
Go into the Spanking category and click on the link at the top for the most viewed of all time stories.
The first one is a story of a stepfather spanking his stepdaughter. And fondling her. And his excitement is clearly implied. And, by the way, consent in that story is at *best* borderline.
So where's the list of unacceptable relationships? parent/child, sibling... how about niece/nephew/uncle/aunt? Cousins? How far removed? Do step- relationships count?