Hmmm... somehow I missed this post (and a couple of others...); but I'll offer my opinion now.
The story definitely contains elements of erotica (bondage, helplessness, forced geisha transformation, groping, ...); but since there aren't any site rules about writings like this, I guess it's not a violation of site policy. {I do think that it is inappropriate for
Posette Forever; because the only connection to site activities is the most recent image posted to the gallery by it's author.}
I'll also add, that as an "artist" I am uncomfortable "judging", or "censoring" another's creation; but as an experienced educator, and parent, this story seems carefully designed to be just enough within the guidelines.
Well, that's my two cents.
(: