I would have to say that fem boys may be the thing I'm most attracted to in the universe, especially the ones you guys posted.
In other words, I like the flat chested look better then the huge boob look.
Now don't get me wrong! I have absolutely no attraction to 'men' what so ever. They have to have an effeminate flair to them, like the ones you guys posted (Which are amazingly beautiful =) )
But overall, yes, I definitely am attracted to 'fem boys' for lack of a better word.