A fanfiction idea could be that in a crossover, Natsu is tired because he's been on a long - term mission in a different realm. He returns to Fairy Tail not quite himself. The guild members start to worry as he doesn't have his usual energy for pranks or challenges. As the story progresses, he slowly regains his strength through the support of his friends and the familiar environment of the guild, and in the end, he's back to his old self ready for new adventures.
He could be less active in battles. Usually, Natsu is full of energy and jumps right into fights, but if he's tired, he might hold back or even need to be rescued by his comrades. This would be a new and interesting dynamic for the story.
Goku from Dragon Ball Z could be a great crossover character for Natsu. They are both very strong and have a love for fighting. Goku's ki - based attacks and Natsu's fire magic would make for some epic battles. They could also train together and learn from each other's fighting styles. Also, Alucard from Hellsing could be an interesting crossover. His vampiric powers against Natsu's magic would create a very dark and intense story.
One great fanfiction could be about Natsu facing an ancient and extremely powerful dark wizard alone. In this story, Natsu's dragon slayer magic reaches new heights as he discovers a hidden power within himself. Maybe it's related to his connection with Igneel that he hasn't fully tapped into yet. He uses his fire magic in ways that are more creative and intense, like creating a massive firestorm that not only burns but also has the power to nullify the dark wizard's magic.
Yes, in a lot of Fairy Tail fanfiction, Natsu can be overpowered. Writers often like to amp up his powers for more exciting storylines. For example, they might give him new fire - based abilities or make his existing ones even stronger to defeat more powerful foes.
In fanfiction, Natsu's age can vary greatly. Some authors might keep him at his canonical age from the original Fairy Tail series, which is around 17 - 18 years old at the start. However, in alternate universe fanfictions, he could be older or younger depending on the plot. For example, in a time - travel based fanfic, he could be much older if the story takes place far into the future or much younger if it goes back to his childhood days.
I'm not sure specifically as it could be about various things. It might be a fan - created story where Natsu from Fairy Tail has some sort of adventure related to sailors. Maybe he meets sailor - themed characters or goes on a journey on a ship.
It could be about a scenario where Natsu, a character from Fairy Tail, goes on a rampage and causes destruction within the context of fan - made stories (fanfiction) related to Fairy Tail.
One idea could be Natsu crossing over into a modern-day world. He'd be confused by all the technology but use his magic in unexpected ways, like using fire magic to power up electrical devices. Another could be a crossover with a different anime world where Natsu has to team up with new characters to fight a common enemy. For example, in a world full of mecha, he might use his fire to overheat the enemy mechas.
In a crossover with 'Naruto', Naruto himself would be a great character to pair with Natsu. They both have strong personalities and are determined to protect their friends. They could learn from each other's fighting styles, with Naruto showing Natsu some of his ninja techniques and Natsu teaching Naruto about magic.
I'm not sure if there is a specific fanfiction exactly about Natsu and Wendy kissing. Fanfiction can cover a wide range of scenarios in the 'Fairy Tail' universe. You could try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own to see if such a story exists.