I can only guess the thought process is: America's the taller and more muscular one, therefore the dominant (aka "manly") one in the relationship. Nevermind his love of video games or how he's scared of ghosts. Which is to say that, yeah, I always saw him as more boyish. Not that he can't have his mature moments, but he's still very much a kid at heart.

I still have it! (I liked it too much to delete it completely. XP) I'm not sure if I could make it work as a one-shot without rehashing the "Austria and Prussia have Anschluss frenemy bonding tiems," but I might post it as just a one-off scene or something.