[quote=@Lunarlors34]
<Snipped quote by Silver Fox>

.....
Why do I even bother with such silly questions?

<Snipped quote by Raijinslayer>

I'm sorry for encouraging him, please shoot me now. For the love of god.
[/quote]

Though technically it probably isn't incest when it comes to Earthland x Edolas.

They aren't born from the saaaame mother. Just alternate mothers. And they share same looks and name.

Alternate versions. 

Like finding that one person in the world that has no relation to you but looks exactly like you.

That be freaky.

Prince: IT's quite a popular fan couple. Romancing The Beast. Lovely read.

Literally only handful of people know of Edo Karn's existence. Just hoooow?

Prince: Mmmmmmmagic! :D

*facepalms*