Huh. When you google mask fetishes, most results seem to be sites about masked women. I would not have guessed that, given Tuxedo Mask and The Phantom of the Opera, and the number of romance novels with "masquerade" in the title.
Googling "masked lover" brought me a lot of references to Venice, more romance novels, and a thoroughbred horse. Oh, and a lot of myspace profiles and blog-pseudonyms.
I did find a collection of Masks in Fiction, though.
Animal Characters and a Sale! - A lot of my favorite romance authors include animals in their romances. In Regencies, we often have horses, but other animals, usually pets, can add fun to...