Their relationship might begin with the Grandmaster having the upper hand, seeing Loki as just another plaything in his collection. But Loki being Loki, he would not tolerate this for long. He would start to plot and scheme, and in the process, the Grandmaster might start to see Loki as a worthy adversary. This could lead to a relationship that is a mix of competition and begrudging admiration, with each trying to outdo the other while also secretly learning from one another.
It could start with a mysterious event that leads to the pregnancy. Maybe Loki was tricked by the Grandmaster into some sort of magical experiment gone wrong.
Well, at first, Kurumu might be attracted to Gohan's power. But as they interact more, she realizes there's much more to him. Gohan, who has a strong sense of justice, could inspire Kurumu to be a better person. They could go on adventures together, facing challenges side by side. In the face of danger, they would rely on each other, and this mutual trust would strengthen their relationship. For instance, when fighting a powerful enemy, Gohan might get injured and Kurumu would have to step up and protect him, which would deepen their connection.
It could develop in a rather comical way. Funshine's silly antics might initially annoy Grumpy, but then Grumpy realizes that he actually enjoys the light - heartedness. He might start to join in on Funshine's fun, and their relationship will grow from there. For example, Funshine might start a game of tag, and at first Grumpy scoffs, but later he participates.
At first, it would be rocky. Loki is used to being a trickster and Tony is a bit of a control freak. But over time, they'd start to respect each other. Loki would see Tony's intelligence and resourcefulness, and Tony would see Loki's power and potential for good. Eventually, they'd become like family, looking out for each other.
Another theme is the exploration of their different natures. Loki is a trickster god with a complex personality, and the Vampire Grandmaster has his vampiric traits. Fanfics may delve into how these two very different characters react to and deal with each other. They might start off as enemies but gradually find common ground due to their shared experiences of being outcasts in some sense.
At first, their relationship might be rocky. Percy would be cautious of Loki, given Loki's reputation as a trickster. But over time, Loki could use his charm and knowledge to gain Percy's trust. For example, Loki might teach Percy some Norse magic or fighting techniques that Percy didn't know before, which would make Percy see Loki in a new light.
Their relationship would be a slow - burn. Loki might play some pranks on Tony at the beginning, which would annoy him. However, when they get into a really tough situation, like being trapped in a dangerous dimension, they have to rely on each other. Loki could use his magic to keep them alive, while Tony uses his engineering skills to find a way out. This shared experience would bring them closer and make them realize that they can be good partners.
The fanfic could develop their relationship by having them face challenges together. Like when there is a new villain in town that targets Deku's family. Ochako and Deku would have to rely on each other, trust each other more, and this would deepen their relationship.
At first, they might be a bit cautious around each other. May could be in awe of Steven's status as a Pokémon expert. But as they start sharing their knowledge and experiences, they would gradually become friends. For example, if they meet during a Pokémon competition and start chatting about their battle strategies.
Their relationship could start with Naruto noticing Karin's abilities and respecting her for it. As he is smart, he would see the value in having her as an ally. This mutual respect could lead to them spending more time together, gradually getting to know each other better.