Generally when I write one of two things happens: either it comes out of me all at once (hurr hurr that's what she said), or I lose interest, go and do something else, then regain interest and come back, and that can happen anywhere between one or ten times, usually.

Generally, the fandom I'm writing for doesn't matter so much. I mean, if I'm writing for Heroes or Supernatural or Fringe, I'm more likely to write serious stuff. As far as genre goes, I lean towards drama, but not full-blown angst, because when I write angst I make myself cry and it sucks. It's easier for me to write scenes that are tense, but not tear-jerky. I also like humor and romance, though I probably imagine I'm funnier than I actually am, lol. Not so much ship-fics, because I don't adhere to specific pairings. There are some I write more than others, but if I get the idea to write Noah/Luke then I go with it. :)

The why is pretty easy. Mostly I get ideas right when I'm about to go asleep, so I have to get up out of bed and write them down otherwise I'll forget. I can work with prompts, but those normally make me produce things that are shorter in length, which is something I'm working on.