I'm one of the authors to the BDSMLibrary website. For those clever people you can probably guess which I am. I've been knocking around an idea lately for a Story called Ninja Nights.
I've always been fascinated by the Silent Assassins. Not the American movie version of them but the real ones who only killed on assignment. So what I wanted to do is create a story which used the old ways of the Ninja. I had the idea that a Barbarian clan attacked a Monks Monastery, what the Barbarians didn't know was they were being assassinated from elsewhere by a Ninja Clan assigned to kill them.
However, during all this the Barbarians captured a bunch of cute women which after some serious sword-work the girls were now in the hands of the Ninjas. Ninjas like to keep slaves just like everyone else (in this story anyway) so what do the Ninjas do for kicks while they wait for their next assignment.
All ideas are welcome and nothing is too brutal. It's only a story after all.
Phoenix