Well, perhaps Jack Frost accidentally enters Neverland while chasing a particularly strong winter wind. Peter Pan mistakes him for a new kind of fairy at first. Then they start to compete in various things, like who can fly faster (Jack using his ice - made wings and Peter with his pixie dust). But as they get to know each other, they realize they have a common enemy in Captain Hook, who wants to use Jack's ice powers to freeze the mermaids' lagoon and catch them easily. So they have to work together to stop Hook.
It really depends on the situation. In a fight, Jack Frost might seem more dominant with his ice - creating powers. He could freeze his opponents or create icy barriers. But in terms of leadership and charm, Peter Pan could be more dominant. He has led the Lost Boys for a long time and has a way of getting people to follow him. So, it's hard to say who would be more dominant overall.
Tinker Bell can also be a great character in these fanfictions. In a story where Peter Pan and Jack Frost interact, Tinker Bell's jealousy or her helpfulness can add a whole new layer of drama or support. For example, she could be jealous of Jack Frost's new friendship with Peter and cause some trouble at first, but then realize they are all on the same side in the end.
There might be a fanfiction where Jack Frost visits Neverland and is initially at odds with Peter Pan. But as they get to know each other, they learn from each other's carefree spirits and form an unexpected friendship. They then go on adventures together across different magical realms, showing their combined abilities to the inhabitants of those places.
One interesting fanfiction could be about Jack Frost and Peter Pan teaming up to save Neverland from a new, mysterious threat. Maybe a dark magic that is freezing parts of the island and they have to combine their powers to stop it.
Another theme is the idea of loss. As mentioned before, the differences in their natures can lead to a sense of loss. Peter may lose the innocence he once had when he meets Jack and realizes the harshness of the changing seasons. Jack might lose his sense of purpose if he becomes too attached to Peter and the eternal summer of Neverland. This loss of something fundamental to their characters is a key theme in many sad fanfictions about them.
In Jack Frost x Peter Pan sad fanfictions, the emotional depth often comes from their different natures. Jack Frost is associated with cold and isolation, while Peter Pan represents eternal youth and freedom. When combined in a sad story, perhaps their differences create barriers. For example, Jack's coldness might make Peter feel alone in a new way, and Peter's carefree nature could be a source of envy for Jack who might be bound by his own frost - related duties. Their relationship can be a struggle between two very different entities, leading to a tragic and sad narrative as they try to understand and be with each other.
Some writers who have a good reputation in the general fanfiction community might also write about Jack Frost and Peter Pan. Look for writers who are known for their creativity and ability to blend different fictional universes well. You can also ask in fanfiction forums or groups for recommendations.
Thor might be a great ally for Jack Frost. Thor is used to dealing with magic and powerful beings from different realms. He would be less likely to be intimidated by Jack Frost's powers. They could both use their elemental - related powers (Thor with lightning and Jack Frost with ice) to create powerful combined attacks against their enemies. For example, Thor could strike his lightning into Jack Frost's ice structures, creating a powerful blast of energy.
His parents could be in his family. Maybe his father is an ancient frost giant with great power over ice and snow, and his mother could be a gentle spirit who gives life to the frozen landscapes. There might also be siblings, like a sister who can create beautiful ice flowers.