Story of O boobs exposed dresses

While the wife and I are not into BDSM (at all) we are both fascinated with those boobs-exposed ball gowns I see in various albums. (Search for "story of O" and you'll see.) There seems to be some kind of modern cosplay club/party at some tourist place called Roissy. Does anyone know about it? Or where to find out about it? My wife really wants to parade around in semi-public in one of those dresses and she's got the boobs to make it work. Every time I try to search for it all I get is 900 links to the novel.