User blog comment:CNBA3/Super Big Theory!/@comment-8153438-20131027110252/@comment-4829046-20131027111550

I want to point out some deeper implications of that last bit you said but.... I'll leave that to someone who is more comfortable with crude humour >_>

My Dark self : What the other me was trying to say is that Natsu is the "key" to Lucy's "lock" if you catch my drift. ;)

<_< Anyways, that phrase reminded me of the plot of Nisekoi.