Cels Forum

Ahh...perhaps the only thing I'm more obsessed with than cels....
doujinshi.

Doujinshi are fan made manga, almost exclusively based on
existing series/characters.  People tend to group doujinshi
into different genres, "hentai" being one of them.  Hentai
doujinshi usually contain very graphic depictions of male/female
sex, although I've seen a lot of people call doujinshi that
have female/female sex "hentai" as well.  When I think of hentai
doujinshi, I think of body fluids flying and women with enormous
breasts.  (yes, I know that's a massive generalization ^_~)