If I understand your question, it is a SP who has the "goth" look, dark clothing and dark hair (a poor description, but hey, it's late), at least I'm pretty sure that's what they mean. If not, I'm gonna have to look at the fecking glossary again!
As far as to why they are attracted to the look, that is better left for them to answer. I kinda like the "goth" look myself as I have a little bit of a dark and quirky side. I am under the impression that girls like that will have a dark, kinky side to them and be regular hellcats in the sack, but a cover does not a great novel make, so it all depends.
I know some have referenced a site called "Suicide Girls" on here before who are somewhat goth and punk (I'm a punk myself, but not really a hardcore one). If you perform a search on here you might find the thread and it might be helpful to you.
Gonzo
