I used to be in a fan group and we went to cons somewhat often. I saw the earliest days of erocosplayers in my area, but I kept noticing something that I still think about sometimes. Most of the girl cosplayers did her (sfw) stuff and had a great time together as a group (not as a clique) but there was always this one that had huge titties, she always had some risque "sluttified" version of a character and she always took her pics at the other side of the convention center, where nobody else would be looking. Meanwhile, the normal cosplay girls would always be having fun, participating in events, taking pics with randoms at the con, etc.