Ever since the decline of the HP fandom, I have found it increasingly difficult to write fic in other fandoms - even if I happen to fall in love (or lust) with a source. This is partly due to the fact that I find it more difficult to write in TV fandoms than in book fandoms, and partly due to the fact that, compared with the HP fandom, other fandoms are so tame.
I have just quite accidentally wandered into the
hd_tropes comm, which stipulates that "all entries must be rated R or NC-17".
I love it. I'm not remotely interested in the exchange as such, but I love the fact that it's a fest that requires you to write porn. Other fandoms don't do that sort of thing that much. Every time I dip my toe into a new fandom, I feel such a deviant, because, well, there aren't many explicit fics around. Which is sad.
Right now, for example, I would like to try my hand at writing Lord Peter Wimsey fic. But there isn't any porn there, and I feel inappropriate. I mean, Lord Peter has canonically slept with a lot of people - and he is great in bed, which is actually explicitely stated in the books (admittedly, it is he who does the stating). And yet, there is no porn. And hardly any slash, either - despite the incredible h/c potential of the Peter/Bunter pairing.
In conclusion: I wish there was more porn. That's what I joined fandom for. That, and fangirling.