A plot could revolve around Gajeel and Levy going on a quest to find a lost dragon artifact. Along the way, they face many challenges. Gajeel uses his dragon - like strength to protect Levy, and Levy uses her intelligence to solve puzzles. This adventure could bring out their feelings for each other more strongly.
One interesting plot idea could be that Gajeel discovers a new type of dragon magic that only Levy can help him understand. Maybe it's a magic that involves ancient dragon runes, and Levy's knowledge of books and languages is crucial in deciphering it. As they explore this new magic together, their relationship deepens.
One plot idea could be that Levy, as the princess, has a secret power that only Gajeel, the dragon, can help her control. As they interact, they start to develop feelings for each other. Another could be that Levy is kidnapped by an evil force and Gajeel, being the powerful dragon, goes on a dangerous quest to rescue her, during which they discover a long - lost prophecy about their fates.
A plot idea could be that their family goes on a journey to find a long - lost magical tome that Levy has always dreamed of reading. Along the way, they face various challenges like bandits and magical traps. Gajeel uses his combat skills to fend off threats, and Levy uses her knowledge to solve the puzzles.
Well, here's another plot. Levy starts training with a very skilled mage who is known for his gentle teaching methods. Gajeel is jealous because he feels like he should be the one teaching Levy. So, he challenges the other mage to a friendly duel. Levy is angry at Gajeel at first for being so possessive, but later she understands that it's his way of showing his care for her. During the duel, Gajeel realizes that the other mage is not a threat to his relationship with Levy and they all become friends in the end.
A possible plot could be that Gajeel and Levy go on a journey to find a special place to raise their child. Along the way, they encounter old enemies who now see the pregnant Levy as an easy target. But they fight together, with Gajeel being extra protective. Also, they could have different ideas about parenting. Levy might want a more studious and peaceful upbringing for the baby, while Gajeel wants to train the baby to be tough from a young age. They then have to find a middle ground.
One idea could be that Levy discovers she's pregnant during a big guild mission. This could add a whole new layer of tension as Gajeel becomes overly protective. Maybe they have to face an enemy who specifically targets Levy because of her pregnancy. Another plot could involve Levy struggling with the changes in her body and magic while pregnant, and Gajeel having to learn how to support her in ways he never thought possible.
Perhaps there's a fanfiction where Levy is praised for her intelligence in front of the whole guild by an elder mage. Gajeel, feeling a bit inferior in that aspect, gets jealous. He starts to study more magic theory secretly to impress Levy. Along the way, there are cute moments where he tries to ask Levy for help without admitting his real motive, and it all builds up to a heartwarming moment between them.
Another plot might involve the baby having some sort of special power. In the world of fanfiction, it could be a magical ability that both Gajeel and Levy have to figure out how to manage and protect. They might have to seek advice from their friends in the guild to keep the baby safe while also allowing it to grow and develop its power.
You could write a fanfiction where Gajeel enters Dragon Force during a major battle against a powerful dark guild. In this story, his transformation could turn the tide of the battle and inspire his comrades. He could also have some internal struggle during the transformation, like dealing with the overwhelming power and the fear of losing control.
Well, perhaps Gajeel kidnaps Levy because he wants to protect her from some greater danger that she's unaware of. He might think that by taking her away, he can keep her safe from an approaching enemy.
Perhaps a fanfiction where Gajeel is cursed with a blue mark that slowly drains his energy. Levy, being the studious mage she is, devotes all her time to finding a cure. Along the way, they have to face many enemies who are after Gajeel's power. Their love and friendship are put to the test as they struggle to break the curse.