A prevalent theme is the power of teamwork. Given their different skill sets, they make a great team. Fanfictions will often highlight how they combine their powers to defeat enemies or solve problems. And of course, there's the theme of loyalty. They are loyal to their friends and comrades, and in the context of their relationship, this loyalty is often a key factor in strengthening their bond.
Well, 'The Fire and the Cat' is another interesting piece. It really plays on Natsu's fire - based powers and Murajane's cat - like abilities. The story has a lot of action - packed scenes where they use their powers in tandem, and at the same time, it explores the budding romance between them.
Friendship is a common theme. Since it's Natsu interacting with various characters, the fanfics often explore how different friendships form and develop. For example, his interactions with Lucy might be different from his interactions with Gray.
One common theme is the exploration of their different personalities coming together. Natsu is bold and impulsive while Aries is more reserved. Their interaction and how they balance each other out is often explored.
A theme that often shows up is the discovery of self - worth. For both Natsu and Knightwalker, their relationship can make them see themselves in a new light. For Knightwalker, it could be realizing she can be more than just an enemy. For Natsu, it might be understanding his own capacity for love in a different way. And of course, there's always the theme of magic and how their magical abilities interact in different situations within the fanfiction stories.
One common theme is adventure. Since Natsu is a very adventurous character in Fairy Tail, fanfictions often incorporate exciting adventures where Natsu and Bisca are together. They might go on quests or fight against powerful enemies side by side.
Love and romance are also prevalent. Writers often explore the relationship between Natsu and Layla, how they fall in love, overcome obstacles in their relationship, and grow closer to each other. It could be a slow - burn romance or a more immediate attraction - based one.
One common theme is power dynamics. Given that Natsu is 'godlike', how he and Mirajane interact in terms of power and influence on each other is often explored. Another is the protection aspect. Natsu might use his powers to protect Mirajane from various threats. And of course, there's the romance theme, showing how their relationship grows in the face of different challenges.
I'm not sure about the common themes in this specific fanfiction as I haven't read many of them. But it could potentially include themes of friendship evolving into love, adventure, and the discovery of new powers.
Love and family are very common themes. It often shows how Natsu and Erza's love for each other translates into a strong family bond. Another theme could be growth, as they grow as individuals while also growing as a family unit.
One common theme is the exploration of their relationship in an alternate universe. Since Erza Knightwalker is from a different world in the Fairy Tail lore, fanfictions often play with how Natsu and her interact and fall in love in this new setting.