In fanfiction, the idea of Harry Potter and Voldemort as soulmates is an interesting concept. This could rewrite the entire dynamic of the story. It might suggest that their battles were not just about good vs. evil, but rather a struggle within a soulmate relationship. There could be a hidden harmony in their magic that only a soulmate bond could bring out. It could also make for a very different kind of character development for both of them, as they would have to come to terms with this unexpected connection.
One possible implication is that Harry would gain a deep understanding of Voldemort's motives. He might see how Voldemort's past traumas, like being an orphan and feeling rejected at Hogwarts, led him down the dark path. This could make Harry more empathetic in a strange way, or it could also be a huge burden on him as he has to deal with all the dark and twisted thoughts that Voldemort had.
Perhaps in this fanfiction, Harry discovers some dark secret about the Order of the Phoenix or Dumbledore that makes him lose faith in the side he has always been on. This, combined with Voldemort's manipulation, could lead him to side with the Dark Lord. For example, if he finds out that Dumbledore has been using him all along without his full knowledge, he might be so disillusioned that he turns to Voldemort as an alternative.
Well, it could be that in this fanfiction, Harry discovers some long - hidden truth about the wizarding world that makes him realize Voldemort's motives aren't entirely baseless. Maybe there's a prophecy misinterpretation that leads Harry to think they can work together to fix the wizarding world's problems.
A major theme is the struggle between light and dark. Even though they are soulmates, they represent opposite sides of the magical spectrum. This creates a lot of internal and external conflict. Also, there's the theme of destiny. Their soulmate status makes readers wonder if they are fated to change each other's paths.
Perhaps in this fanfic, there has been some major plot twist that makes Harry believe that bowing to Voldemort is the only way to save his friends or the wizarding world. For example, Voldemort may have threatened to kill all of Harry's loved ones if he doesn't submit, and Harry is sacrificing his pride for the greater good.
Some writers might show it through a strange attraction. Despite their hatred, there could be an underlying pull towards each other. For example, they might find themselves in situations where they can't bring themselves to kill the other when they have the chance.
Themes could include the blurred lines between good and evil. If Harry is a fan of Voldemort, it challenges the traditional view of their roles. Another theme might be the exploration of dark magic. Since Voldemort is associated with it, Harry's fascination could lead to a deeper look into the nature of dark magic.
If Voldemort reads Harry Potter books fanfiction, it could be really strange. He might get angry as the fanfiction could portray him in ways he doesn't like. Maybe he'd see himself being defeated in new and creative ways that would irritate his pride. He could also gain some new, unexpected insights about the wizarding world from the different perspectives in the fanfiction, which could either make him more dangerous or, if he overthinks it, cause him some confusion.
If such a fanfiction existed, it would mean a radical departure from the source material. The 'Harry Potter' series is built on themes of friendship, courage, and the fight against tyranny. A 'Harry Potter makes out with Voldemort' fanfiction would undermine these themes. It would create a new, and perhaps disturbing, sub - narrative. It might also affect the reputation of the 'Harry Potter' fandom as a whole. People outside the fandom might view it as a place that tolerates or even encourages such extreme and inappropriate interpretations. However, within the fandom, it would also spark discussions about the boundaries of creativity and the importance of staying true to the original spirit of the story.
Well, one way could be through some dark and misinterpreted magic. Maybe Harry stumbles upon an ancient spell that he thinks will defeat Voldemort once and for all but instead, it backfires and revives him. It could also be due to some sort of interference from a powerful dark object that Harry unknowingly uses in the wrong way.