Well, it could start with Natsu accidentally stumbling upon a time - related magic or a magical artifact that transports him to the time when his past self exists. Then they would meet and there would be a moment of shock and confusion.
In this kind of fanfiction, Natsu might have some really interesting interactions. He could try to warn his past self about future challenges or mistakes. For example, he might tell his younger self about a particularly difficult battle and how to better prepare for it.
At first, it might be a bit tense. Natsu would be full of questions and his future self might be a bit reluctant to share everything. But as they start to talk, they could become more understanding of each other.
Their relationship often develops through shared experiences. For example, they might go on a quest together. During the quest, they face challenges and have to rely on each other. This builds trust between them. Natsu might start to see Lisanna in a new light, not just as an old friend but as someone he could have deeper feelings for. Lisanna, on the other hand, might become more confident around Natsu and show her true self more often.
In the 'natsu meets his future self fanfiction', one possibility is that his future self warns him about certain events that are going to happen. For example, about an upcoming battle that is more dangerous than any he has faced before. His future self could also show Natsu new magic techniques that he will develop over time. It could also be a situation where Natsu's future self is not what he expected, perhaps having made some mistakes that Natsu now has the chance to avoid.
Maybe in this fanfiction, Natsu travels back in time on a quest to change a tragic event that happened in his past. When he encounters his younger self, he realizes how naive and impulsive he was back then. He starts teaching his younger self about the importance of self - control and strategy, which his younger self gradually starts to understand and apply.
Percy's character could become more self - aware. Seeing his past self would make him reflect on how far he's come. He might realize that he's grown more confident and capable over time.
In this fanfiction, Natsu's older self might have a better understanding of the consequences of his actions. When he meets his younger self, he can show him how certain choices in the past led to both good and bad outcomes. This would make the younger Natsu more cautious and thoughtful. Also, the younger Natsu's innocence and enthusiasm could remind the older Natsu of his lost youth, making him regain some of his earlier passion. Overall, both versions of Natsu would grow and change through their interactions.
At first, it might be a bit strange. His past self would be confused and a bit scared of this older version of himself. But as time goes on, they would start to trust each other. Naruto would be patient with his past self, and his past self would start to look up to him.
At first, it might be a bit awkward. But as they start talking, they'd grow closer. His father would see Naruto's growth and be proud.
Alec often develops by learning more about Magnus's past and becoming more empathetic. He might see the struggles Magnus faced before and grow in his understanding. Magnus, on the other hand, could develop by seeing a different side of Alec. Maybe past Magnus is more guarded, but through their interactions, he starts to open up more.