Yes, there might be such fanfictions in the vast world of fan-created content. However, it would be a rather dark and non - canonical take on the relationship between the characters, as it goes against the general narrative where they are more often allies or rivals in a less fatal way.
Well, in a 'Luke Kills Percy' fanfiction, it could start with some deep - seated resentment or a new, unexpected motivation for Luke. Maybe Luke discovers some dark secret that makes him believe Percy is a threat to his goals. The actual killing would be a shocker, and then the story could explore the aftermath, like how the other characters react. They might be filled with grief, anger, and a thirst for revenge. It would be a very different take on the familiar world of the story, and might even lead to a completely different end - game for the remaining characters.
At first, it could be quite rocky if they find out later in the story. Percy might be angry that Luke has been keeping secrets or has done bad things in the past. But eventually, they would likely grow closer as they realize they are family and start to support each other.
Luke in Percy Jackson fanfiction can play various roles. He could be a reformed villain, seeking to make amends for his past actions. This gives a new arc to his character that wasn't fully explored in the original books.
Well, in some fanfictions, Luke might be possessive of Percy because he sees Percy as a symbol of power or potential. He may want to control Percy to use his abilities for his own goals, like in the original story where Luke has his own dark motives. Also, it could be out of envy. Percy has things that Luke might feel he lacks, so his possessiveness could be a way to try and take what Percy has for himself.
There could be. Fanfiction allows for all kinds of wild ideas. Given that Percy is a character in the Harry Potter series and Voldemort is the main villain, it's not surprising that someone might come up with a story where Percy manages to kill Voldemort. It might be a really unique read, delving into how Percy, with his own set of skills and personality traits, could achieve such a feat.
In Percabeth fanfiction, Luke's jealousy of Percy can be quite complex. Firstly, Percy has a certain 'it' factor. He's brave, but also has a sense of humor and is able to make friends easily. This makes him popular among the demigods. Luke, who has his own insecurities and a different path in life, sees Percy as someone who has it all. Percy's relationship with Annabeth is a big part of it too. Annabeth is smart, strong, and beautiful. Luke may have desired her for himself at some point. And seeing Percy with her, having her love and support, could really fuel his jealousy. Additionally, Percy seems to have a better relationship with the gods, which gives him more opportunities and power, and this is something Luke may deeply envy.
I'm not sure specifically as there could be many different interpretations in different fanfictions. But generally, it might involve Luke taking actions to rescue Percy from some sort of danger, like a monster attack or a dangerous situation in the world of their story.
The theme of power is also common. Both Percy and Luke are powerful in their own ways. Fanfictions may explore how they use or misuse their power, how they compare to each other in terms of strength, and how they learn from each other's approach to power.
Sure, there are some. Fanfiction is all about exploring different relationships and scenarios that might not be in the original works. For Percy and Luke, a kiss could be a part of a story that delves into their complex relationship, perhaps a moment of unexpected connection or a turning point in a story where they see each other in a new light. Writers often use this to create unique and engaging stories.