The story might be centered around the girl's attempts to understand why her sister's use of self tanner attracted aliens and how she tries to solve the mystery and protect her family from whatever the aliens have in store.
Writing fanfic about real people can be a bit of a gray area. While it can be a form of creative expression, it should be done in a respectful way. If the fanfic involves inappropriate or false content that could harm their reputations, it's not okay. However, if it's a positive and fictional story that doesn't cross any boundaries, some may see it as acceptable.
Friendship could be a great theme. They could be on an exciting adventure together, helping each other out in challenging situations. Maybe they're exploring a new city or trying out a new extreme sport.
Janet Tanner could be an author or a character within the context of Fantastic Fiction. Without more specific information, it's hard to say precisely. It might be a name specific to a certain genre or series within the Fantastic Fiction realm.
I'm not sure specifically about Tanner Braungardt gay fanfics. Fanfics can be quite niche and vary greatly in quality. You could try searching on fanfic - specific platforms like Archive of Our Own (AO3) to see if there are any available.
There's no way to know for sure if Tanner Braungardt is aware of this 'bulge fan fiction'. He may be completely oblivious to it, especially if it's a very niche or underground form of fan - created content.
In Twilight fanfiction, Bree Tanner can be significant as she was a character in the Twilight saga with a tragic end in the original story. Fanfiction often explores her backstory more deeply, perhaps giving her a chance at a different life or exploring her relationships in ways the original didn't. It can also delve into her experiences as a newborn vampire, which was a brief but intense part of her story in the books.
There isn't enough information here to accurately tell the Tanner Usrey Josephine True Story. Tanner Usrey could be an artist or an individual with a personal journey, and Josephine could be someone related to him in some way, perhaps a friend, family member or a character in a particular event in his life. But without additional details, we can only guess.