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.
Romance is also a very prevalent theme. Fans love to explore the relationship between Natsu and Lucy, whether it's a slow - burn romance that gradually develops over time or a more immediate love - at - first - sight kind of situation. It often involves cute moments between them, like Natsu protecting Lucy or Lucy taking care of Natsu when he's injured.
One common theme is friendship. Their relationship as friends is often explored, like how they trust and rely on each other. Another theme is adventure. They usually go on some kind of adventure together, whether it's to defeat a new enemy or to discover something new. For example, in many fanfictions, they set out to find a lost magical item.
The theme of unrequited love can also be common in some 'lucy loves natsu fanfiction'. Maybe at the start, Natsu doesn't realize Lucy's feelings or is too focused on other things like his next adventure or his training. This creates a lot of tension and drama in the story, as Lucy tries to hide or express her feelings while Natsu is oblivious.
One common theme is romance. Since Natsu and Lucy have a great chemistry in the original series, in hotel fanfictions, the hotel setting often provides a more intimate and private space for their relationship to develop, like in 'A Romantic Hotel Retreat' where they finally confess their feelings in a cozy hotel room.
One common theme is the exploration of their unspoken feelings. Often, in the series, their relationship is somewhat ambiguous, and fanfiction allows for that to be explored more deeply with the kiss as a climax of those pent - up emotions.
Power and growth is another theme. As they face challenges together, they become stronger both magically and as individuals. Their relationship also strengthens during these times. They rely on each other's powers and learn to work in harmony, which is often explored in fanfictions.
A recurring theme is the idea of sacrifice. In some fanfics, either Lucy or Natsu might be in a situation where they have to sacrifice something for the other. This could be their own safety, a magical ability, or even their dreams. It shows the depth of their connection and how much they value each other.
One common theme is adventure. Natsu and Lucy often go on quests together in fanfics, facing various challenges. Another theme is love. Their relationship, whether it's budding or fully developed, is a central focus. And friendship is also important. They are part of a guild, so their bond as friends within the group and specifically between them is often explored.
A common theme is self - discovery. Since Lucy is a dragon, she often has to figure out her new powers and what it means to be a dragon. Another theme is acceptance, as she may face prejudice from others who fear or misunderstand her dragon form.
One common theme is power. Since Natsu is a dragon, the fanfictions often explore the extent of his power and how he uses it. Another theme is identity. Natsu has to figure out who he is as a dragon in relation to his human side.
Well, family is a big theme. Since Lucy is pregnant with Natsu's child, it's about them starting their own family within the Fairy Tail family. Love and protection are also common. Natsu would likely be very protective of Lucy and the unborn child, showing a deeper side of his love. And sometimes, there's the theme of sacrifice, like Lucy might have to sacrifice some of her adventures for the sake of the baby and Natsu might have to change his carefree ways to be more responsible.