In most Percy Jackson canon, there is no relation to Thor. However, in fanfiction, anything can be possible. It could be that the author has created a unique crossover where Percy Jackson has some connection to being the heir of Thor, perhaps through some magical or divine intervention that the fanfic writer has dreamed up.
There could be Annabeth. She is Percy's close friend and often plays a crucial role in Percy's adventures. In a situation where Thor kneels to Percy, she might be there to witness it and offer her own thoughts or reactions.
One possible reason could be that Percy has shown some extraordinary power that even Thor, a powerful god, respects. Maybe Percy has defeated a common enemy in a really remarkable way that makes Thor recognize his strength and kneel in admiration.
Probably not. Thor is busy with his own heroic deeds in Asgard and dealing with his Norse - related challenges. While Percy Jackson fanfiction is about a different set of characters in a different mythological world. There's no connection between them in the original works, so it's hard to imagine Thor taking the time to read Percy Jackson fanfiction.
One great 'Percy Jackson and Thor Fanfiction' is 'The Godly Alliance'. It combines the worlds really well. The author does a great job of bringing Percy's powers and Thor's hammer into the same story. It's full of action and adventure.
Another place to check is FanFiction.net. It's one of the oldest and largest fanfiction platforms. There are many different categories and you can search specifically for stories that involve both Percy Jackson and Thor. However, the quality can vary a lot, so you might have to sift through some not - so - great ones to find the gems.
The 'fish - out - of - water' trope is also seen a lot. When Percy ends up in Thor's world or vice versa, they are both out of their element. Percy has to deal with the strange Norse landscapes and customs, while Thor might struggle with the modern - day world if he goes to Percy's. It creates a lot of comical and interesting situations in the fanfiction.
One great 'Percy Jackson Thor Fanfiction' is 'The Godly Alliance'. It combines the worlds of Percy Jackson and Thor in an exciting way. The author does a great job of mixing the different mythologies. Percy's skills blend well with Thor's godly powers, making for some really cool action scenes.
One great female Percy Jackson x Thor fanfiction could be 'A Meeting of Gods'. It's a story where the female Percy Jackson, with her water - controlling powers, crosses paths with Thor in a modern - day setting. They start off as rivals but gradually develop a mutual respect and an unexpected friendship. The story is really good at showing how their different powers and personalities interact.