My boyfriend is very flamboyant and the stereotypical "sassy gay" so yes? He definitely gave me a perspective change because I really wasn't into fem guys before him. Love him doe.
I'm not attracted to feminine guys, but I'm not attracted to ultra masculine guys, either. Imma need a couple of 'feminine' traits (even if it's just the music/movies/shows they're into), otherwise it's not gonna work.