Since Naruto and Demeter are from very different fictional universes, a common theme could be the clash of their different worlds. Maybe Demeter, with her connection to nature, tries to understand Naruto's shinobi world. Another theme could be a friendship that develops into something more, with the challenges that come from their different backgrounds.
Well, there's Wattpad too. Although it has a broader range of content, not just focused on fanfiction like the others. But it's possible to come across 'Naruto Son of Demeter' fanfiction there. However, you need to be careful with the quality as it can vary a great deal. FanFiction.net and AO3 are usually more reliable in terms of having a dedicated fanfiction community that often vets and rates the stories.
One possible antagonist could be those who oppose the mixing of the Naruto world and the Greek mythology elements. They might see Naruto as an abomination because of his unique heritage as the son of Demeter. Another could be some of the traditional Naruto villains who now see Naruto as an even greater threat due to his newfound powers related to Demeter. For example, Orochimaru might be interested in Naruto's powers for his own evil experiments.
Well, one interesting idea could be how Naruto's powers might be influenced by Demeter's connection to nature. Maybe he could have the ability to control plant growth in a unique way, like creating giant vines for defense or using flowers to heal. Another idea might be how his relationship with the other characters in the Naruto universe changes due to his new heritage. For example, he could have a different bond with those who are also in tune with nature, like some of the ninja clans that have nature - based jutsus.
I haven't actually read any 'Naruto and Demeter' lemon fanfictions. However, if you search on some well - known fanfiction platforms like Archive of Our Own, you might be able to find some highly - rated ones. Just make sure to follow the platform's rules and guidelines.
Often in fanfiction like 'Naruto Son of Demeter', the author will explore different character relationships. Naruto's family dynamics could be completely reimagined. His relationship with his new 'parent' Demeter could bring out different sides of his personality. There could also be new story arcs involving Naruto's role in the shinobi world, with the added aspect of Demeter's influence. Maybe he uses his new powers to solve problems in a different way than in the original Naruto story. And the story might also introduce new characters or reinterpret existing ones in the context of this new mythology - inspired setting.
One possible plotline could be Naruto discovering his true parentage as the son of Demeter. This could lead to a journey of self - discovery as he tries to understand his new powers related to nature. Maybe he has to hide this from his friends at first because he's not sure how they'll react.
In Percy Jackson fanfiction, the idea of Percy having a relationship with Demeter is quite an interesting concept. Demeter is the goddess of the harvest. A possible scenario could be that their love is based on Percy's respect for nature which Demeter represents. Maybe Percy helps Demeter in a quest related to protecting the harvest and in the process, they develop feelings for each other.
One interesting aspect in Percy Jackson and Demeter fanfiction could be the relationship between Demeter's powers over nature and Percy's adventures. For example, Demeter could use her powers to help Percy in a quest that involves a lot of natural elements like a forest that has been corrupted. She might be able to manipulate the plants to guide him or provide him with resources he needs.
Another idea in Percy Jackson and Demeter fanfiction is the idea of a friendship or a mentorship between them. Demeter could be like a mother figure to Percy, guiding him not only in matters related to nature but also in his personal growth. She could give him advice on how to deal with his complex family situation, using examples from the natural world she governs. This would add a very interesting emotional depth to the story.