Hi Tara, welcome to GG&J. Nice site.
It can be hard to say how much to charge for exclusive written content. As you say, it depends on who is buying it. It sounds like the site you're writing for may not have a huge amount of cash to throw around so this could make a difference.
And I guess the other sad thing is that written content is not worth nearly as much online as it is on the net. I've been paid $700 for a 1500 word story published in a women's magazine, but in the online adult world that same story is worth about $20. Obviously that's not the exclusive rate, but it gives you an idea of how much the going rate might be.
The rates listed at Custom Erotica Source
http://www.customeroticasource.com/c...es/index.shtml
have a 1500 word custom written story at $125. I don't think that site has been updated for a while.
Oceania used to charge quite a lot for her stories but she doesn't seem to be doing it anymore.
http://www.peacockblue.com
The Erotica Readers Association can give you advice on how much to charge as well.
http://www.erotica-readers.com/ERA/index.htm
