Gray could be a great addition. Since Gray has a history with both Juvia and Lyon, his presence can add a lot of drama. For instance, his reaction to Juvia and Lyon getting closer could range from jealousy to acceptance, which would create different story arcs.
Adventure is also a big theme. She goes on quests, explores new places, and meets new characters. In a crossover with a space - themed story, she might be exploring new planets and facing alien threats. It makes for exciting reading as we follow her through these new and unknown territories.
One great Gray Juvia lemon fanfiction is 'Frost and Rain's Intimacy'. It beautifully captures the intense relationship between Gray and Juvia. The story has a perfect blend of their personalities and the lemon scenes are tastefully written, adding a layer of passion to their relationship.
Often, there are plots involving how their friends in Fairy Tail react. They could be really supportive, throwing baby showers and helping with preparations. Another plot could be about Juvia's pregnancy cravings and Gray trying to fulfill them in his own clumsy but endearing way. It's also possible that there are some challenges like Juvia having a difficult pregnancy and Gray being worried sick, but they get through it together with the love and support of their friends.
One common theme is the overcoming of initial misunderstandings. Since Gajeel and Juvia are both complex characters with their own personalities, they often start off misinterpreting each other's actions. But as the story progresses, they learn to understand each other better.
One interesting Naruto and Juvia fanfiction could be a story where Naruto visits the Fairy Tail world and meets Juvia. They team up to fight a common enemy that threatens both their worlds. Maybe a dark wizard from Fairy Tail and an Akatsuki member join forces, and Naruto and Juvia have to use their unique skills to defeat them.
A recurring theme is the contrast between their personalities. Natsu is hot - headed and Juvia is more reserved and emotional. This contrast creates interesting dynamics in the fanfiction. It leads to both humorous and heart - warming moments as they try to understand each other and make their relationship work.
Well, it depends on the author's imagination. Maybe Natsu's raw power would give him an edge initially, but Juvia's strategic use of water could turn the tables. It could lead to a thrilling back-and-forth.