In a fanfiction, Lucy can be developed by giving her some insecurities about her magic compared to the Dragon Slayers. Then, through her interactions with Sting and Rogue, she overcomes these insecurities. For Sting, you can make him more empathetic towards others. Have him befriend Lucy and Rogue in a deeper way, and this will change his perspective on things. Rogue can be developed by having him face his fears. Maybe there is a powerful dark magic that is related to his shadow, and he has to confront it. As they all go through these character - developing experiences together, their relationships will also grow and become more complex.
For Lucy, you could develop her character by showing her growing more confident in her magic. Maybe she starts to experiment with new ways to summon her Celestial Spirits or combines their powers in unique ways. With Sting, you can explore his past more deeply. Show how his experiences as a Dragon Slayer have shaped his personality, and have him face some internal conflicts related to his power and identity. As for Rogue, you could develop his relationship with his shadow. Maybe he discovers new abilities within his shadow magic. Also, in the fanfiction, put them all in situations that force them to interact and grow together. For example, a mission where they have to protect a village from a powerful dark mage.
For Lucy, you could explore her celestial spirit powers more deeply. Maybe she discovers a new and rare spirit that has a special connection to Rogue or Sting's magic. For Rogue, his relationship with his shadow could be further developed. He might learn to use his shadow in new ways, and Lucy and Sting could play a role in that discovery. For Sting, his leadership skills could be tested and improved. They could be put in a situation where Sting has to lead a group that includes Lucy and Rogue, and he has to make tough decisions.
A possible plot could involve a dark magic that starts affecting Fiore. Lucy discovers some ancient texts about it, and she realizes she needs the help of Sting and Rogue. They go on a journey to find the source of this dark magic. Along the way, they encounter many enemies. Sting and Rogue use their Dragon Slayer magic to fight, while Lucy summons her Celestial Spirits. As they get closer to the source, they find out that one of their old enemies has returned and is using this dark magic to seek revenge. Together, they combine their powers to defeat the enemy and save Fiore.
Their relationship could develop through a shared love for a particular type of magic. For example, if they both have an affinity for celestial magic (even if Rogue in a different way), they could bond over researching and exploring new aspects of it. This would give them a common ground and something to always talk about.
One idea could be a time - travel plot where Lucy, Rogue, and Sting are sent back in time to the founding of Fairy Tail. They have to navigate the early days of the guild while also trying to find a way back to their own time. Another could be a magic - swapping scenario, where they accidentally exchange their magical abilities and have to learn to use each other's magic to fight a new, powerful enemy.
Another common theme is power and growth. Writers often show how Rogue and Sting become stronger over time. For example, they might face a powerful enemy and through that experience, they learn new magic or improve their existing skills. It's about their journey to become more powerful dragonslayers.
For Lucy, her character could be developed by showing her learning new and advanced celestial magic spells from Yukino. This would not only expand her magical abilities but also show her determination to grow stronger. For Yukino, she could be developed by showing her becoming more confident in making decisions outside of her guild's rules, influenced by Lucy's more independent nature.
Well, a really popular theme is power - up. In these fanfictions, Sting and Lucy often find ways to increase their magical powers while working together. It could be through a special training or finding a rare magical item. Another common theme is the exploration of their pasts. How their individual histories shape their relationship is an interesting aspect that many fanfiction writers like to touch on. Also, the theme of loyalty comes up a lot, especially when they face difficult situations and have to choose whether to stay true to each other or not.
One great Sting and Lucy fanfiction is 'A New Bond'. It beautifully explores their relationship as they go on a mission together. The story delves into how Sting's brash nature and Lucy's more cautious approach complement each other. Another good one is 'Sting and Lucy: Partners in Magic'. It shows their growth as they face challenges side by side and learn to trust each other more. There are also many fanfictions on platforms like FanFiction.net and Archive of Our Own where you can find different takes on their relationship.
Natsu could be a great character to pair them with. Since he's also a dragon slayer, there could be some interesting interactions and competitions among them. They could learn from each other's dragon slayer techniques.
One great fanfiction could be 'The Bond of Dragonslayers'. It really delves into the relationship between Rogue and Sting. It shows their growth as characters, their teamwork, and how they support each other. It also has some really cool action scenes that are true to the Fairy Tail spirit.