Friendship is a very common theme. Since they grew up together, many fanfictions explore how their bond as friends deepens over time.
The theme of sacrifice also appears often. Given their roles in protecting the Earth, fanfictions sometimes depict situations where one of them has to sacrifice something for the other or for the greater good. This could be as simple as giving up a chance for personal glory to save the other's life.
One common theme is friendship. They often rely on each other in fanfictions, showing a deep bond of friendship. Another theme is power - how their combined powers can be used to face great threats. For example, in many stories, they train together to become stronger. And there's also the theme of sacrifice, where one might be willing to sacrifice for the other to save their world or loved ones.
One common theme is growth. Both characters often grow as individuals and in their relationship. For example, they might learn to overcome their personal fears or weaknesses while falling in love. Another theme is adventure. They usually embark on some sort of journey or face challenges together, which brings them closer.
One common theme is the clash of good and evil. Trunks represents the good side, and Frieza is the epitome of evil in the Dragon Ball series. Another theme could be redemption. Some stories might explore if Frieza can be redeemed through his interactions with Trunks. Also, power struggles often come up, as both characters are extremely powerful in their own ways.
One common theme is redemption. Writers often explore the idea of Cell being redeemed in some way through his relationship with Gohan. Another theme is the power of friendship or an unlikely alliance. Since they were enemies originally, seeing them come together in fanfiction is quite interesting.
One common theme is power combination. Since both are powerful characters in the Dragon Ball series, many fanfictions explore how their powers could combine or complement each other in battles.
One common theme is power dynamics. Since both Gohan and Kefla are powerful characters in the Dragon Ball universe, their relationship might be explored in the context of who is stronger or how they combine their powers. Another theme could be cultural differences, as Gohan is from Earth and Kefla is a fusion from the Saiyan race in Universe 6.
One common theme is redemption. Often, Cell is given a chance to redeem himself through his interactions with Gohan. Another theme is the power of forgiveness. Gohan may forgive Cell for his past actions. And there's also the theme of unlikely friendships. Despite their differences, they can form a bond.
One common theme is the exploration of their unspoken feelings. Since they are friends in the original series, fanfictions often focus on how those feelings of friendship could turn into love. Another theme is growth, both as individuals and as a couple. For example, Gohan might be dealing with his Saiyan heritage while also trying to figure out his relationship with Erasa.
A common theme is growth. Both Gohan and the OC often grow as characters, whether it's in terms of power, like Gohan getting stronger with the OC's help, or emotionally, like learning to trust and love each other.
One common theme is the power dynamic. Since Gohan is a powerful Saiyan, it could be about how the reader deals with his strength. Another theme is growth. They both might grow as individuals while in a relationship.