Perhaps their relationship would develop romantically. As they go through various adventures together, they start to develop feelings for each other. However, this would be a complex relationship considering Gohan's past and the fact that the Female Cell Jr is a unique being. But love can often overcome such differences, and they would have to face many challenges together to make their relationship work.
At first, their relationship might be a bit rocky. Gohan would be cautious around the Female Cell Jr because of her origin. But as they spend more time together, he would start to see her as an individual. They could gradually become friends, sharing their thoughts and experiences.
One possible plot could be a story of friendship. Maybe Gohan discovers the Female Cell Jr in a forest, lost and confused. He decides to help her understand the world outside of being a creation of Cell. They could start exploring different places together, learning about nature and different cultures in the Dragon Ball universe.
The relationship could develop out of a need for companionship. Gohan, having lost many of his friends and family in battles, is in need of someone who can understand his pain. 18, being an android with her own complex past, also longs for someone to be close to. They meet and initially just offer each other a listening ear. As they talk more, they find that they can comfort each other in ways no one else can. This emotional connection then grows into a romantic relationship, and finally, they marry as they realize they don't want to be without each other.
Their relationship might start with distrust. Goku would be wary of a being related to Cell. But if the female Cell shows good intentions, Goku could gradually accept her. Eventually, they could become friends or even more.
Their relationship could start off as a mutual respect for each other's power. Gohan would be in awe of 18's android abilities, and 18 would recognize Gohan's potential as a Saiyan. As they spend more time together, they might start to become friends, sharing their thoughts and experiences.
In a fanfiction, their relationship development could be quite complex. Female Majin Buu's more carefree and unpredictable nature could initially clash with Gohan's more disciplined self. However, as they face various challenges together, such as a powerful enemy attacking the planet. They start to understand each other better. Gohan begins to appreciate Female Majin Buu's unique perspective and abilities, and she respects his intelligence and strength. This mutual understanding paves the way for a closer relationship, whether it's a strong friendship or a romantic relationship depending on the direction of the story.
Their relationship could start off with Hermione being extremely cautious around Tom Riddle Jr. But as she tries to understand him more, she might start to see his potential for good. Tom, on the other hand, could be initially intrigued by Hermione's intelligence and different way of using magic. As time passes, they could develop a mutual respect, with Hermione constantly challenging Tom's darker thoughts and Tom starting to question his own path because of her influence.
In the fanfiction, Gohan's Great Ape side could be a source of both fear and fascination for Videl. At first, she might be hesitant to get too close. But as she sees how Gohan tries to control it and use it for good, she starts to respect him more. This newfound respect could turn into deeper feelings, and they could start to rely on each other in different ways. For example, Gohan could protect Videl in his Great Ape form, and Videl could be the one to bring Gohan back to his senses when he gets too carried away. This back - and - forth dynamic would strengthen their relationship over time.
In the fanfiction, their relationship could start with distrust. Bardock might not trust Gohan because he is part human. However, as they face challenges together, like fighting off some common enemy, they start to understand each other. Gohan could show Bardock his unique fighting style which combines both Saiyan and human techniques. Bardock, in turn, could pass on his knowledge of Saiyan heritage and the importance of Saiyan pride. This would gradually strengthen their bond.
After getting married, they would support each other in their daily lives. Gohan might help Videl train even more, and Videl could encourage Gohan in his academic pursuits. They would also have to deal with family matters together, like taking care of Pan. Their relationship would grow deeper as they face challenges as a couple, such as balancing their personal goals with family responsibilities.
Their relationship could also develop through mutual respect. Gohan respects Android 18's power and her ability to make her own decisions. Android 18, on the other hand, respects Gohan's intelligence and his role as a protector. This mutual respect could be the foundation for a romantic relationship. For instance, they could start training together. During training, they would learn more about each other's limits and capabilities. This closeness during training could lead to a spark of love as they see each other in a different light, not just as allies but as potential lovers.