A popular non - adult - content trope in Draco x Ron fanfiction is the 'redemption' trope. Draco, who has a rather complex and often negative past in the original story, can be redeemed through his relationship with Ron. Also, the 'fish out of water' trope can be seen when they are put in new and unfamiliar situations together, which forces them to rely on each other. This can help build their relationship in the fanfiction world.
In many Draco x Ron fanfictions, the 'secret relationship' trope is common. Given their backgrounds and the divide between their groups in the original story, a secret relationship can add a lot of drama and tension. Additionally, the 'character growth' trope is often present. Both Draco and Ron grow as individuals as they interact and form a relationship, learning from each other's strengths and weaknesses and becoming better versions of themselves in the fanfiction narrative.
Another theme could be sacrifice. In the context of the original story, they are in a dangerous world. Fanfictions could explore how they are willing to sacrifice for each other. This selfless love, whether it's a romantic or a very deep platonic love, can be a central theme in the fanfiction, without having to involve adult - related themes.
There are often themes related to the Naruto world itself. For example, the struggle against the forces of evil. Shikamaru and the reader might be part of the fight against the Akatsuki or other threats. Another theme could be cultural exploration, like delving into the traditions and beliefs of the Hidden Leaf Village through their relationship. And sometimes, there's a theme of self - discovery, where the reader, through their relationship with Shikamaru, discovers more about themselves, their strengths, and their place in the world of ninjas.
If we exclude the adult - related themes that 'lemon' might imply, common themes in mermaid fanfiction could be the mermaid's longing for the human world. Mermaids might be curious about human culture, technology, or relationships. Another theme could be the mermaid's struggle to fit in, either in the human world or in their own mermaid society if they have some unique trait or ability that sets them apart.
One of the common themes could be Revan's redemption arc. Given Revan's past actions, fanfictions may focus on how he/she tries to make amends or find a new path. Also, the exploration of Revan's origin story, like where he/she came from and how he/she became such a powerful force - user, can be a theme. Additionally, Revan's role in different events in the Star Wars timeline might be explored in a way that doesn't involve inappropriate content.
Excluding adult content, themes in undertaker fanfiction can be his role in the overall narrative arc. How does he contribute to the story's progression? His unique appearance and how it affects his interactions with others can also be a theme. For example, his long hair and pale complexion might be a point of interest in stories, leading to themes about how others perceive him based on his looks.
One common theme could be the exploration of their personalities. Ginny is often portrayed as strong - willed and Draco as complex. Their interactions might focus on how they overcome their initial prejudices. For example, they might start to see each other's good qualities during a difficult situation at Hogwarts.
One common theme could be power dynamics. Lucius being a powerful figure in the Harry Potter universe, the 'daddy kink' aspect might play into a power - based relationship in a non - sexual way, like a form of mentorship or protection. Another theme could be family - like relationships. Draco looking up to Lucius in a more complex way than just a father - son bond.
The theme of transformation could be present. Not just her physical transformation into a Gorgon, but also a transformation in her personality as she is in a submissive state. She might learn new values, new ways of thinking, and new ways of interacting with others. It could also explore the theme of power dynamics, not in a sexual way, but in terms of who has the upper hand in different situations and how Medusa copes with it.
One common theme could be the exploration of their relationship in a more romantic or platonic way. Maybe they start as enemies but gradually develop an understanding of each other. Another theme could be their interaction within the Hogwarts social structure, like how they deal with the Slytherin - Gryffindor divide. And also, their personal growth in relation to each other, for example, how Pansy's view of Harry changes as she sees his heroic side.
Friendship is also a big theme. It shows how two people who seem so different can become friends or more. There's also the theme of forgiveness. Ron has to forgive Draco for his past actions and Draco has to do the same for Ron's sometimes prejudiced views towards him. This makes for some really engaging stories.