The answer to your first question is actually "it just comes to me", so...

And the answer to your second question is no, because I generally don't read fic where I'm not familiar with the source material, even if it's a crossover with something I know and like.

Er, sorry that these weren't very interesting answers!

Question: Is there a series or franchise that you love deeply but have never, ever felt the desire to be fannish about?