Hi, Deadman and all.
You aren’t feeling nearly as opposite as you might think. Fanfiction by its very nature is the fanfic author telling a story the original author didn’t see fit to tell, however much of the original author’s universe you preserve in your own. Likewise, if you read a fanfic where the author took too many liberties in their own storytelling, that can also inspire you to pick up the pen as you’ve done. You’re not the only one to start writing fanfiction as a defense against fanfiction that didn’t quite do the job for you.
When specifically writing erotic or pornographic fanfic literature, you (or any author) needs to overcome their own internal limits in order to make their writing readable. Your own personal “internal challenges” differ from others’ only in the details. In order to write readable prose, you must be emotionally attached to your characters, and cannot write well if you are not; whether writing erotic literature, pornographic literature, or non-erotic literature. If you’re connected with your characters and your story, you have a greater chance of connecting with the reader. Likewise, if you’re already fully connected with your reader, such as Wilbert Audrey when he first started writing the Thomas the Tank Engine series, you will quickly connect with your characters if you’re any good at all.
If you imagination doesn’t go “far enough” to be able to form a “live” image from a manga, anime, or cartoon drawing of a character, that’s fine. You still have plenty to write about. Likewise, if you can’t figure out where all the “extra tentacles” go, that’s also fine. Usagi-Chan is extremely grateful for that, even if some potential readers might be disappointed. Your imagination for what you choose to imagine should be more than sufficient to entertain your readers. If it isn’t, the “next” key works just as well for them as it does for you. And if it really works for them, there is Patreon and Ko-fi, if you can’t quite go mainstream with your writing.
“Wilde Guess” isn’t even my “regular” nom de plume. I use it mostly for any writing I do that is sexually explicit, erotic, homoerotic, etc. As for your reason to start writing fanfiction, that’s really close to why I started Third Time’s A Soul Bond. I was totally and thoroughly sick of poorly written, unexplainable-in-canon, and frankly insane slash pairings in HP fanfiction. Seeing very few examples of “semi-logical” slash parings, I created this pen-name just to write that story. On “St. Elsewhere.net,” it’s actually the longest story with that particular pairing. I’ve received fewer reviews on the entire story than a single chapter of the “typical” SS/DM spit-roast of the Boy Who Lived. Oh, well...
Riding the Lincoln Way was originally a one shot to cleanse the mental palate from some “train-wreck-bad” “spank-kink” junk I’d encountered in passing. But instead of just posting the junk, I started asking questions. That’s never a smart thing when you expected less than five thousand words total, and thus have no outline to defend yourself from the plot bunnies putting on harness and towing your story out to places you never thought it would go. Hey Joe was the continuation in both directions of two throw-away example scene snippets I wrote in a forum post. Once again, no “outline shield.”
To answer @GeorgeGlass’s post directly:
I agree with 1. and 3. completely, except for if I’m writing a crack/bash/parody, then 1. will be broken by the very nature of what I’m writing. 2. doesn’t bother me so much. When I’m writing fiction, I envision the fictional character exclusively, even if the character was portrayed in film or television. In the Potterverse, I write about Ron Weasley, Harry Potter, Severus Snape, etc; not Rupert Grint, Daniel Radcliffe, or Alan Rickman.
Likewise if my original fiction has historical or modern real people characters, they will never be “main” characters, and anything they do do will either be their historical actions, or non-defamatory actions they would likely have logically taken had the entire story been real life. So, if a group of musically talented kids get some help from a real-life rock star, that’s because had the kids existed in real life, the rock star in question would have helped them. Of course, if I need a fictional character to hold a real-life position somewhere, “Mr. Real Life” never existed, and the fictional character will not resemble “Mr. Real Life” in any way at all whatsoever other than having turfed them out of their jobs and (fictional) existence. This, of course, is just one of many challenges when you insert fictional characters into real-life locations and times, and why its done, but done very very sparingly on the commercial front. But it can be done without legal or other life-changing adverse consequences, as can be witnessed to by Mario Puzo or Allen Drury.
Cheers!