One possible storyline could be a quest where the three of them have to work together to defeat a powerful dark wizard. Natsu's brute strength, Erza's strategic combat skills, and Mirajane's shape - shifting abilities would make for an amazing team. They could start off with some initial bickering due to their different personalities but gradually grow to respect and rely on each other more as the adventure progresses.
One idea could be a story where they go on a quest together. Maybe they have to find a rare magical item. Natsu's impulsiveness, Mirajane's charm, and Erza's strict leadership combine in interesting ways during the adventure.
One unique way to develop their relationship could be through a shared loss. For example, if a beloved member of the guild was killed. Natsu might react impulsively with anger, Erza would be more stoic but determined for justice, and Mirajane would be the one to comfort them both while also being sad herself. This common grief could bring them closer together, with Natsu realizing he can rely on the two women in different ways. Erza could see Natsu's softer side and Mirajane could see a new depth to Erza.
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.
The popularity of 'Fairy Tail Natsu x Mirajane fanfic' comes from the fact that both characters are very popular in the 'Fairy Tail' series. Fans like to explore different relationships between the characters, and Natsu and Mirajane have very distinct personalities that can create interesting dynamics.
Their personalities. Natsu is the hot - headed and impulsive one, always ready to jump into action. Erza is the strict and disciplined warrior, bringing order and strategy. Mirajane is the more laid - back but still very powerful one. Together, they create a great balance.
There's also 'Unlikely Allies' which is set during a war against a powerful dark guild. In this story, Natsu, Mirajane, and Erza form an unbreakable alliance, and their individual powers and personalities blend together to defeat the enemy. It has great action scenes and character development.
Another option is to join Fairy Tail - related Facebook groups. There are often members in these groups who are into writing or reading fanfiction. They might be able to point you to some great Natsu x Mirajane stories or even have some exclusive ones shared within the group.
One great story could be 'Natsu and Mirajane's Adventure'. In this fic, they might go on a quest together, facing various challenges that test their relationship and individual strengths. It could involve them using their magic in creative ways to overcome obstacles.
One of the main things that makes 'Fairy Tail Natsu x Mirajane fanfiction' appealing is the opportunity to create a unique love story within the magical world of Fairy Tail. Fans can imagine how their magic would interact in a romantic context. For example, Natsu's fire magic and Mirajane's take - over magic could be used in creative ways to save each other or have special moments together. Also, seeing these two characters, who are both important to the guild, develop a deep emotional connection is very satisfying for readers.