Hmmm, sounds a lot like what I've heard called 'Cosplay' except sticking to mythical BS instead of including comic book, anime, SF (Klingons etc.) and other assored literary and pop culture costume geeks.
Nice looking girl if she was scrubbed down, unfortunately I find the whole vampire schtick about as hot as I find furries, they both fail to move the needle of my funmeter off the zero pin. Even fur bikinis just look stupid instead of erotic to me.