Hmm, they're really not that hard to write I mean you have to know the people your writing about so you can have a certain personality set, or you can start off by telling you readers that the characters are going to be different than they normally would be. That would be fanfiction, slash. Original fiction is way easier to write, if you have the write kind of character. Basically like a non-slash but with as a slash, if that make since.
Hey sweetie thanks for the comment. I'm glad you like the story so far. IDK if you've got an instagram account but if you don't you can look at his pictures and such on here http://web.stagram.com/n/ronnieinreverse/
And it's so much harder because you have to keep checking the facts about your characters to make sure you're not getting them mixed up at all. Even small things, like the color of their eyes or their mom's name.
I had six at one time, finished one, and had five for about half a year. Now I'm finally down to two, but I'm going to be finishing one whenever I get the motivation. haha.