Chyoo is kind of the unrecognized bastard stepchild of Literotica. heh.
A nifty little site where people write branching stories, not unlike the old Choose Your Own Adventure books, but with slightly less pirate treasure, and considerably more fucking.
I'm fuzzy on the details, but at some point in the past, it fell through the cracks and has been adrift and rudderless since 2006. Which is a bit of a shame, since it's a nifty idea.