One common theme could be the relationship between the reader and the main characters. For example, the concern or reaction of Sam and Dean Winchester when the reader sneezes, which might show their protective or caring side.
You can try searching on popular fanfiction websites like Archive of Our Own (AO3). Just use the keywords'supernatural','reader', and'sneeze' in the search bar, and it might lead you to relevant fanfictions.
One common theme is the disruption of Sherlock's normal routine. His sneezing throws him off his usual composed self, which is an interesting change for readers used to his stoic character.
One common theme is adventure. The reader often goes on exciting adventures with the Supernatural characters, like hunting monsters or exploring otherworldly places. Another theme is romance. There's usually some sort of romantic relationship developing between the reader and a character from the show.
One common theme is the exploration of different supernatural abilities. For example, characters might have powers like telekinesis or mind - reading. Another theme is the complex relationships between the characters. This could include friendships, romances, or rivalries within the supernatural world. Also, the struggle between good and evil is often a big part of it, with characters having to decide which side they're on.
One common theme is the discovery of self. Jack is constantly learning about his identity, and the reader can be a part of that journey. For instance, he may struggle with his demonic or angelic heritage, and the reader provides support and different perspectives.
A common theme is the humor that comes with the unexpectedness of a sneeze. It can be used to create comical situations, like when a pony is trying to be serious but a sneeze makes them look silly.
Another theme is the unexpected consequences of sneezing. In 'The Sneeze that Changed Everything', a character's sneeze causes a chain of events that completely alters the course of a small town's history. It could be something like a sneeze that scares a horse which then runs off with an important message. This shows how a simple human reflex can have far - reaching effects.
Love is a common theme. Often, the female reader falls in love with one or more of the BTS members during their supernatural encounters. Another theme is self - discovery. As the reader gets involved in the supernatural world with BTS, she also discovers things about herself. For example, hidden strengths or magical abilities.
I'm not entirely sure as it's a rather specific and unusual topic. However, it might involve the X - Men characters in situations where sneezing plays an odd or central role, perhaps related to their powers in some contrived way.
One common theme is the power dynamic. Lucifer being a powerful character, there's often a play on his dominance in these fictions. Another theme is the forbidden love aspect, as Lucifer is a villain in the Supernatural universe. There's also the idea of seduction, where Lucifer uses his charm to draw the reader in.