Hey who says being friends precludes sexual attraction anyway?
Like, I know I turn on my nephews by just basically being there, I can tell, but that doesn't mean they stop being my nephews all of the sudden just becuase they "got wood" in their pockets.
Same goes with friends...of any sex.
So I say one can be sexually attracted to another person all day long and still manage to be "friends" so long as they have even a small amount of common sence and self disipline.