Well, perhaps they are transported to a parallel world where they are already the Dragon King and Queen. But this world is in chaos due to an evil dragon's reign. Natsu and Lucy have to figure out how to use their newfound status and powers to defeat the evil dragon and restore peace. They might also meet alternate versions of their friends who have different roles in this world.
In this situation, their relationship could develop in a very interesting way. As the Dragon King and Queen, they would be equals in a new sense. Natsu's impulsive nature might be tempered by Lucy's more rational thinking. Lucy, on the other hand, would gain more confidence from Natsu's unwavering belief in her. They would share a deeper bond as they navigate the new responsibilities together. For example, when making decisions about dragon - related matters, they would consult each other, which would bring them closer. Their love would also be more public and a symbol of hope for their people or the dragons they rule over.
The main characters are clearly Natsu and Lucy. Natsu is in the role of the king and Lucy as the queen. In the context of this fanfiction, they are likely to be the central focus as they deal with the situation of Lucy being pregnant.
Well, one possible plot could be that Natsu, as the king, has to deal with the political implications of Lucy being pregnant. He might face challenges from other kingdoms who see a potential heir as a threat. And Lucy, as the queen, could be struggling with her new role and the physical and emotional changes of pregnancy.
A popular one is 'Dragon's Love for the Celestial Mage'. This fanfiction takes their relationship to a new level. It starts with a simple adventure but soon unfolds into a story of deep love and loyalty. The author does a great job of portraying Natsu's dragon - like instincts when it comes to protecting Lucy, and Lucy's growing feelings for Natsu are also well - written.
Some fanfictions feature ancient evils that were sealed away long ago but are now starting to break free. These could be powerful demons or corrupted spirits. They see Lucy and Natsu as threats to their plans of world domination, so they target them. The antagonists in these cases are not only physically powerful but also very cunning, constantly devising new ways to outwit our heroes.
Archive of Our Own (AO3) is also a great place. There are some really high - quality fanfictions there about Natsu and Lucy. The tagging system makes it easy to find exactly what you're looking for.
One common theme is adventure. Since they are from the Fairy Tail guild which is all about going on quests, many fanfictions continue this trend. They go on new adventures together, facing powerful enemies and discovering new magic.
Well, in many such fanfictions, it often involves Natsu and Lucy having a special connection related to dragons. Maybe Natsu's dragon powers play a role in bringing them closer in a romantic or fated - mates - like way. For example, they might go on adventures together where Natsu's dragon instincts protect Lucy in a more profound way than in the original story, and their relationship deepens as they face various challenges side by side.
One interesting plotline could be Lucy and Natsu going on a quest to find a lost dragon egg. Along the way, they face many challenges and their bond grows stronger. Another could be Natsu suddenly losing his dragon powers and Lucy having to find a way to get them back, which involves delving into some ancient magic lore.