As of writing I have two hard rules: Have fun, and don't make porn of Sunny. Fanart is always welcome, and you're free to use my art as icons, banners, and other things, so long as you give credit; even roleplayers are cool by me. You don't need my permission for this stuff anyways, just go have fun and be nice about it.
I have a lot of sexy characters, but not all of them are for sex. If you want to make fanart or fanfic...
...You should make porn of these characters:
Ai Maho, Alice, Caprice, Faye, Iro, Maeve, Marina, Marzipan, Nashi, Teagan
...Keep these characters non-nude:
America, Kagami, Karol, Sunny
If you share or reuse my work, please mention that I created the original art and maybe even link back to one of my pages. You should already be doing this for any artist whose art you share or use! Also please don't make money off of my work - or other artists' - without asking and perhaps paying specifically for the right to do so. Generally assume my work is distributed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) license. You can read the full details here.