Thor's ability to fly with his hammer could be enhanced by Percy's control over water. Percy could create a water - spout or a current of water in the air that Thor could ride on, increasing his speed and maneuverability. In turn, Thor could use his strength and lightning to protect Percy when he is using his water powers in a vulnerable state, like when he is concentrating on creating a large - scale water structure.
One possible plot could be that Percy and Thor meet during a battle against a common enemy that threatens both the Greek and Norse realms. They initially clash due to their different fighting styles and personalities. Percy, with his water powers and quick thinking, and Thor, with his mighty hammer and thunder powers. But as they face challenges together, they start to respect each other's abilities. They learn from one another, like Percy teaching Thor about the subtleties of water combat in certain terrains, and Thor showing Percy how to better use his strength in a more brute - force kind of way. Eventually, they become friends and vow to protect both their worlds from future threats.
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.
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.
One great 'Percy Jackson Friends Fanfiction' read could be 'The New Quest'. It takes the characters on a journey outside of Camp Half - Blood, exploring new friendships and challenges. Another is 'Friends in Strange Places' which delves into how Percy and his friends interact with some really unusual mythical creatures while still maintaining their strong bond. And 'Friendship Beyond the Gods' is also a popular one, where their friendships are tested by the interference of the gods but they come out stronger in the end.