Started yet *another* story tonight. Rewatched 100, and just had a picture of Reid showing Hotch some sympathy in that office, and then a line popped into my head about the two of them once having been lovers, and then I thought; but not while Hotch was married, and then, for some reason, my brain skipped to a teenaged Reid, working as a hooker, and I thought, 'but how does he do that and not get recognized?' and now Reid is really, really good at controlling his image and how people perceive him. And Hotch is in Vegas on a case. And Reid's going to seduce him with his sleight of hand and pretty. And then... I have only a vaguely sketchy idea about what will happen.

Seriously. That's how 90% of my fic starts, right there. A totally random string of thoughts and connections and weird justifications to glue it all together.

I'd say that everything I write, I write on the basis of ship. It's not always it advances beyond pre-slash, or even that far, though, but I always write for the ship. :-)