Goth porn is great, and goth girls are very hot. But I know for a fact that not all of them are dirty in the sack. Alot of the goth girls I have come across are quite let me just say "out there" and probadly need to spend money on a shrink then on some corset or giant platform boots. As for sleeping with a few, the sex is pretty normal like with any other girl that dresses or looks a different style.
I've dated one goth chick too. Don't know if this is the deal with all the goth girls, but she was horny as hell. (The emotional part of the girl really killed it, though)