Maybe its the desire of being enfolded within shiny, leathery, membraned, bat-like wings... whether demon, dragon, or any other monster.
So far.... I have at least 3 that make my "list of monster fantasies".....
1) The Gargoyle from the "Tales from the Darkside" movie.
Whoa! A great set of wings, and a very sexy looking gargoyle too! The gargoyle is from the story "Lover's Vow" about Preston, an artist down on his luck, witnesses a grisly murder. The gargoyle, using very special "see all" sonic detectors, cuts him off before he can make an escape, but oddly, doesn't immediately go for a neck-slice. Instead, it talks. In return for being allowed to live, Preston must promise to never tell anyone what he saw, what he's heard, or what happened on this darkest of nights.
2)Asmodaeus Demon from "Demon Keeper". I watch this movie only for the scenes of the demon. His wings flaps a bit when he moves, and I do wish for a slash fic starring him! There is somewhat of a slash hint when he slightly paws one of the victims as he "possesses" her.
3) This one I have yet to figure out what it is. It looks like a giant rat with huge bat-wings, but I am uncertain if its a ratbat or what. Its from the movie "The Graveyard Shift" off the Stephen King book. That flick shows some great shots of the huge, and very thick leathery wings on that creature. I cried when it got eaten by the thrasher. What a waste of a sexy looking (even though bloodthirsty) creature!
As one can tell,I have fantasies about gargoyles (the non-disney kinds). Gargoyles protect you from evil spirits...yet..can't they protect you in other ways? ;)