There could be such fan fiction out there, but it's not something that is mainstream or widely known. Fan fiction often explores unique and sometimes unexpected relationships, but this particular scenario might be a bit more rare. It would depend on the creativity of the individual fan fiction authors within the relevant fandom.
I'm not sure specifically about a 'bill cheats on harry' romance fan fiction being popular. Fan fiction can vary greatly in quality and popularity. It might exist in some niche corners of the fan fiction world, but I haven't come across one that stands out in that regard.
In a 'bill cheats on harry' fan fiction, the plot could start with Bill and Harry being part of a close - knit group. Bill might be in a long - term relationship with another character. However, as he spends more time with Harry, he begins to have romantic and sexual feelings for him. He might start to hide his interactions with Harry from his partner, leading to a web of lies and deceit. This could cause a rift in the group, with Harry being conflicted about his feelings for Bill and the moral implications of being involved with someone who is 'cheating'. The story could then explore how they deal with these complex emotions and the fallout from Bill's actions.
I'm not really into that kind of fanfiction that involves cheating in the Harry Potter universe. However, there might be some out there. It's not a very positive or canon - friendly concept, but some fanfic writers might explore such dark or angsty storylines for the sake of drama.
It could be a new character introduced specifically for the fanfiction. Maybe a mysterious stranger who has some ulterior motives and targets Bill because of his relationship with Harry.
There might be some out there in the vast expanse of fanfiction, but it's not a common or popular trope. The relationship between Snape and Harry in the official story is based on Snape's complicated feelings towards Harry's mother and his role as a teacher and spy. So, the idea of 'cheating' doesn't really fit into that framework. I would recommend looking for fanfiction that explores their more canon - related interactions instead.
There might be some out there. However, this goes against the canon relationship in the 'Harry Potter' series. Some fanfiction might explore such a concept in an alternate universe or a 'what - if' scenario. But it's important to note that it can be quite controversial among fans who love the original Hermione - Ron relationship.
Sure, there could be fanfictions like that. It's interesting how fanfiction allows for the exploration of 'what - if' scenarios. But often when characters are put into such out - of - character relationships, it can be a bit jarring. Writers who handle this well will usually give good reasons for the change in relationships within the story, like some sort of alternate universe where different events led to Hermione being closer to Draco than Harry. But still, it's not a common or widely - accepted idea in the general 'Harry Potter' fan community.
There are indeed some 'Naruto cheats on Sasuke' fanfictions. These are usually created by fans who want to experiment with different relationship dynamics. But from a traditional Naruto fan's perspective, it can be quite jarring as Naruto and Sasuke's relationship is a cornerstone of the series. Their relationship is built on years of battles, reconciliations, and a shared understanding of each other's pain. So these fanfictions are a very different take on their relationship.
Yes, there might be such fanfictions out there. However, this kind of plot goes against the original relationship dynamics in the Percy Jackson series, which can be quite controversial among fans. Some fans might write it for the shock value or to explore different relationship scenarios, but it's not in line with the general perception of the main characters' relationships.
Yes, there might be some out there. However, the idea of Ginny cheating on Harry goes against the essence of their relationship in the original series. Some fanfictions might explore this concept in an interesting way, perhaps to show how relationships can be complex even in the wizarding world. But it's important to note that it's a departure from the main story's values.
There are well - written ones that explore their different personalities. Harry's bravery and Blaise's cunning can be combined in a story where they are trying to outwit a dark wizard. Their relationship is one of respect and friendship, and the fan fiction shows how two different characters can work together in the wizarding world in a platonic way.