One common theme is exploring their super Saiyan forms in different situations. For example, Goten might struggle to control his super Saiyan powers at first and Goku helps him master it. Also, there could be themes related to time - travel where they go back in time to change certain events in the Saiyan history, which would lead to all kinds of new storylines and character developments.
Some popular themes in Goku and Goten fanfiction could be their training adventures. They might face new and powerful enemies together and have to develop new techniques to defeat them. Another theme could be family bonding. Since they are father - son, there could be stories exploring how Goku passes on his Saiyan heritage and values to Goten.
One common theme is redemption. Goku Black, being a villain, might find redemption through his connection with Goten. Another theme could be power dynamics, as Goten has his own set of powers and how they compare or interact with Goku Black's is interesting to explore.
It could be an interesting twist. Maybe Goten gains Goku Black's powers and personality, creating all kinds of new storylines and conflicts.
There might be a fanfiction where Goten gets lost in time, and Goku has to travel through different eras to find him. Along the way, Goku meets versions of his friends from different time periods and has to team up with them to rescue Goten. This would involve a lot of action and emotional reunions.
In Goten and Marron lemon fanfiction, a prevalent theme is the exploration of their physical attraction. Given the nature of lemon fanfiction, it delves into more sensual aspects of their relationship. There could also be themes related to power dynamics, especially considering Goten's Saiyan heritage and Marron's different upbringing. Additionally, some fanfictions might focus on the challenges they face in keeping their relationship a secret from their friends and families, adding an element of drama and tension to the story.
One popular theme could be their growing up together and the transition from friendship to a more romantic relationship. Another might be them facing some sort of danger or challenge as a couple.
They also develop their characters through their relationships. Goku has a unique relationship with Goten as his father. Writers might show Goku being a bit more laid - back as a dad compared to how he was with Gohan. Goten, in turn, might be shown as eager to please his father and live up to the family name. Additionally, in battle situations, their different fighting styles can further develop their characters. Goku's more experienced and instinctive style, while Goten is still learning and may be more impulsive.
Since lemon fanfictions involve inappropriate content, I can't recommend or promote their themes. But for regular Goku and Pan fanfictions, a common theme could be the passing of the torch. Goku, being a powerful Saiyan, imparts his knowledge and power to Pan, the next generation. It shows the growth and development of Pan as a fighter and a character.
One common theme could be the exploration of their relationship in a more romantic or passionate way. Since it's 'lemon' fanfiction, there might be themes related to physical attraction and intimacy.
One common theme is the exploration of their relationship's development. It might show how they fall deeper in love.
Well, in many fanfictions, a common theme is their exploration of their Saiyan heritage. They could be on a quest to find out more about their Saiyan ancestors. Also, friendship is a big theme. They might make new friends during their adventures who help them see things from different perspectives, and this could lead to some really interesting character development for both Gohan and Baby Goten.