Well that was fun, let's do a meme! Stolen from EVERYONE, EVERYWHERE.
Pick any passage of 500 words or fewer from any piece of fanfiction I’ve written, and comment to this post with that selection. I'll then give you the equivalent of a DVD commentary on that snippet: what I was thinking when I wrote it, why I wrote it in the first place, what’s going on in the characters' heads, why I chose certain words, what this moment means in the greater context of the story, and anything else that you’d expect from a commentary track.
For reference, complete collection of fanfiction I've written in the last four and a half years is here on my LiveJournal or here on my AO3.