I started writing erotica/dirty stories in 2002. I discovered a site online called Phil's Files - which has long since disappeared, I'm afraid, so don't bother looking. Phil had lots of stories, all of them sexy and many of them kinky, and I became fascinated. I did some searching and found a few more similar sites, including an e-mail based erotic writers' group run by an American academic called Mary-Jane (or was it Mary -Jo?) Mohenraj. It was essentially a group for swapping critiques. After a while, I summoned up the courage to write my own story - a piece about public masturbation called 'Night Train in Germany'. I remember the huge sense of transgressiveness I had while I was writing the story. I think I must have been trembling with excitement - and some shame - all the time I was typing it. And I got a huge adrenalin rush when I posted it - and, of course, whenever I got a reply.
That group is long-since defunct, I'm afraid, but I still get a huge charge at the thought of other people reading my dirty fantasies. (All my stories are fiction, incidentally.) I've now written and posted a lot of sex stories - here and elsewhere. I've become more interested in plot as time's gone on, and the act of writing erotica has become less intense than it was the first time. But there's still a delicious freedom in being able to publish porn/erotica for others to share.