Re: Slime
I am most certainly going to add ideas and writing to this if it gets started; I've had this general idea in my head for quite some time, after all. The original idea revolved around my universe-hopping hentai super-species, the Demons of Disgrace, and their documentation of all the different hentai creatures in the multiverse.
I've got a Pokegirl universe story about Host in my head that I've been planing for years, but have never been arsed enough to start on; in it, pages from the Disgrace's Demon's Handbook are given at the end of each chapter (as opposed to pokedex entries on the pokegirls encountered in the chapter).
I've already got a crapton of ideas for tentacles, even a short document for several critters that I made approximately 5 years ago (mainly inspired by Demon Girl and Jungle Girl), though it is rather poorly done and mainly in game contexts. At the time I was imagining something similar to a hentai version of Dungeon Keeper, but quickly switched to an RPG. I'll see if I can find it.
I would like to note that while there should be many, many varieties of raping, killing and otherwise being-very-bad creatures, there should also be a fairly large amount of hentai creatures designed to live in harmony with other life forms, and even some that prey for other life forms.
There should of course be entries for just about every hentai creature that already exists; for instance, the Yoju of Pretty Soldier Wars, or the Shikima of La Blue Girl. Not only would making this be pretty damn fun… it’d allow myself and the rest of the forum to have a bestiary of monsters for whatever purposes they needed them.