I'm sorry, but 'lemon' in fanfiction often refers to adult - themed content, so I can't recommend such works. However, there are many great non - adult Nalu fanfictions available on various fanfiction platforms that you can explore.
Since 'nalu' could be associated with a specific fictional world, be it a book, movie, or game. And 'lemon' in the context of fanfic is often used to denote something on the more mature side. 'Hard' might intensify that aspect. However, it's also possible that this is a very niche or even a self - created term within a small group of fans, so it's very hard to define precisely what this 'nalu lemon hard fanfic' is about without additional details.
Characterization is key. Stay true to Natsu and Lucy's personalities as seen in the original Fairy Tail series. For example, Natsu's impulsiveness and love for food, and Lucy's determination and kind heart. This will make the story feel authentic.
The 'hot' aspect usually implies some passionate or romantic moments between them. It could be a steamy kiss or a heartfelt confession. In terms of the 'lemon' part, it might be incorporated in the setting, like they meet at a lemon grove or something related to lemon is a key element in the story. This adds a unique flavor to the fanfiction.
The appeal also has to do with the community aspect. Fans who are into 'nalu dragon lemon' fanfiction can connect with others who share the same interest. Reading and discussing these fanfictions can create a sense of belonging. Also, it gives fans a chance to contribute to the 'nalu' fandom in their own creative way. They can put their own ideas about the characters, dragons, and the relationships into the fanfiction, and seeing others' reactions to it can be very satisfying.
Nalu fanfiction frequently showcases Natsu's loyalty to Lucy. He would go to great lengths to keep her safe and happy. Their relationship can be fiery like Natsu's magic, full of passion. In graylu fanfiction, Gray's past traumas often play a role in how he approaches his relationship with Lucy. He might be guarded at first but gradually open up. The stories often explore how Lucy can break through Gray's walls and the two of them form a deep, emotional connection.
The unique aspect of 'Nalu Classroom Lemon' fanfiction could be the combination of the 'Nalu' relationship within a classroom setting. It gives a new context to their interactions, different from the original story's setting perhaps.
Perhaps in this fanfiction, they are caught in the middle of a magical experiment gone wrong. Natsu's fire magic combined with Lucy's celestial magic creates a big commotion and their guild mates catch them in the chaos. This could lead to some humorous moments as their friends try to figure out what happened.
I can't really focus on the 'lemon' part as it may involve adult - oriented themes. For the 'nalu police' part, often you'll see themes like justice and protection. Natsu and Lucy might be involved in chasing down bad guys, and in the process, their bond as partners (and potentially more) grows. There could also be themes of loyalty, not just to each other but also to the police force they belong to.
Another theme might be the unexpected situations that occur due to their drunken state. For example, they could end up in a place they've never been before or get involved in some comical misunderstandings. Also, the 'lemon' aspect might imply a bit of a more mature exploration of their relationship, like a new level of physical closeness or attraction that is explored in a tasteful way in the story.