One possibility is that it would bring a whole new dynamic to his relationships. His friends, like Gray, might be really confused at first. Natsu, as a girl, could potentially show a more delicate side while still having that fiery spirit. For example, in battles, she might use her strength in a more unexpected way, taking advantage of opponents underestimating her because she's a girl.
If Natsu turns into a girl in fanfiction, his appearance would be quite a change. He might have long pink hair, and his eyes could be even more expressive. His usual dragon - slayer outfit would have to be adjusted to fit his new female form, perhaps becoming more form - fitting or having some feminine touches. In terms of his magic, it would remain the same, but the way he uses it could be different. He might be more strategic, using his new - found grace to his advantage in battles.
The story would change a great deal. Natsu's usual brash and bold behavior as a boy might be tempered a bit as a girl. His interactions with the guild members would be different. For instance, the way he flirts with Lisanna might turn into a more sisterly kind of relationship if he's a girl. And his rivalry with other male characters could shift to a different type of dynamic.
In some fanfictions where Natsu turns into a dragon, it often gives him extraordinary power. He might have enhanced fire abilities, being able to breathe more intense flames. His physical strength could also increase exponentially, making him an even more formidable force in battles. Maybe he would also gain some dragon - like instincts, which could either help him in combat or cause some internal conflict as he tries to balance his human side with his new dragon self.
Well, Natsu's relationship with Gajeel could be really different. Gajeel might be more respectful towards Natsu as a girl, or he could be more competitive in a different way, like trying to prove that he's the better dragon slayer in a more gentlemanly manner. Natsu's relationship with the guild master, Makarov, would also change. Makarov might be more protective of Natsu as a girl, and Natsu might have to fight harder to be taken seriously in guild matters. In general, all of Natsu's relationships would be reshaped, with new levels of complexity and humor added to the story.
In a fanfiction where Natsu turns into a kid, his personality would likely remain somewhat the same but be more child - like. His impulsiveness could become even more extreme as a kid. He might make new friends more easily among the younger members of the guild. And his love for food would probably stay strong, but he might be more likely to steal sweets like a typical kid. His enemies might underestimate him in this form, which could lead to some interesting battles where he uses his child - like charm and his still - powerful magic to win.
Perhaps the fanfic is exploring a different side of Natsu's character through this 'heavier' aspect. It could be related to an emotional burden he's carrying that is metaphorically making him 'heavier'. For example, he might have made a difficult decision or had a falling - out with a friend in the Fairy Tail guild. This internal struggle could be manifested physically in the story as him feeling heavier, and the author could be using this to add depth to his character development.
Well, in many Fairy Tail Natsu Dragon Form fanfics, we often see an expansion of Natsu's powers. Some fanfics might explore his new abilities in more detail, like how he can control different types of dragon magic that he couldn't in the original series. It's really exciting to read about his enhanced combat skills and the unique ways he uses his dragon form.
One great fanfic could be 'The Adventure of Natsu and Erza'. It focuses on their unique bond during a dangerous mission. They rely on each other's strengths and in the process, their relationship deepens in a very platonic yet heartwarming way.
In the original 'Fairy Tail' anime and manga, Natsu and Wendy's relationship is one of comradeship and mutual respect. A lemon fanfic might distort this relationship in an unappealing way. We should focus more on their growth as characters in the official story. Natsu grows stronger in his battles against powerful foes, and Wendy gains more confidence in using her magic over time.