That actually reminds me of the time when people at PC used to argue about Ash's Pikachu's gender. Remember that song, 'Pikachu: I choose you!'? I don't remember the exact name, but it was something like that.
The lyrics had a part where it said,
"Pikachu! You know there is no other.
I choose you! Because you are my brother."
Brother would imply that Pikachu is a male. lol :x And this was far before Togepi's attract or something.