A sense of growth and change is often explored. Natsu and Mirajane might start to see each other in new lights. For example, Mirajane could help Natsu become more mature, and Natsu could inspire Mirajane to be more adventurous. Their married life becomes a journey of self - discovery and mutual support, which makes for an interesting and heartwarming theme in these fanfictions.
One common theme is friendship. Since they are both part of the Fairy Tail guild, many fanfictions explore the deepening of their friendship over various adventures. For example, they might go on a mission together and learn more about each other's strengths and weaknesses, which in turn strengthens their bond as friends.
Well, a big theme is the contrast between their personalities. Mirajane is calm and collected most of the time, while Natsu is impulsive and hot - headed. This contrast can create a lot of interesting situations in the fanfictions. Another theme is the protection aspect. Mirajane, being in love, may feel a strong urge to protect Natsu, even though he is quite capable of taking care of himself. And there's also the theme of the unknown future. The fanfictions may explore how their relationship could change the future of the Fairy Tail guild and their own individual fates.
Growth is another theme. Writers like to show how Natsu, Erza and Mirajane develop their magic skills and as individuals over time. For example, Natsu might learn to control his power better, Erza becomes more strategic in battles, and Mirajane discovers new aspects of her magic.
One common theme is the development of their relationship from friendship to love. It often shows how Natsu starts to see Mirajane in a different light and how they gradually fall for each other.
Love and friendship are common themes. Since they are both from the Fairy Tail guild, their friendship forms the basis of their relationship in the fanfiction. The kiss is often a way to show the evolution from friendship to love.
One common theme is power dynamics. Given that Natsu is 'godlike', how he and Mirajane interact in terms of power and influence on each other is often explored. Another is the protection aspect. Natsu might use his powers to protect Mirajane from various threats. And of course, there's the romance theme, showing how their relationship grows in the face of different challenges.
One common theme is friendship. They are both members of the Fairy Tail guild, so fanfictions often explore how they support each other as friends. For example, Natsu might encourage Mirajane when she's feeling down about her past. Another theme is teamwork. They could team up to complete a difficult mission for the guild. They use their unique abilities, Natsu's fire magic and Mirajane's take - over magic, in combination to overcome obstacles.
Some Tumblr blogs are also dedicated to Fairy Tail fanfictions. Browse through the Fairy Tail tags on Tumblr and look for posts related to Natsu and Mirajane's relationship. There's a chance you'll stumble upon some great married fanfiction stories about them.
Family is a common theme. Natsu building a family with his partner and all the joys and challenges that come with it.
It could involve their daily life together. Maybe Natsu is still going on adventures, and Mirajane is supporting him while also taking care of their home. There could be cute moments like Natsu bringing back strange things from his quests and Mirajane just shaking her head with a smile.