First, you need to understand the characters well. Batman is a brooding, justice - seeking vigilante, and Killer Frost has her own complex personality with her ice - related powers. Then, create an interesting plot, like a new villain that forces them to interact in a unique way.
Good character development is key. Show how Batman and Killer Frost's relationship changes over the course of the story. Maybe start with them as enemies or at least distrustful of each other. As the story progresses, they could start to respect and even care for one another. Also, add some action scenes that are in line with their abilities. For example, Batman using his gadgets to combat Killer Frost's ice powers in a fight that goes wrong at first but then leads to a truce.
When writing their character interaction, start with their differences. Batman is all about order and justice in a non - lethal way, while Killer Frost has a more chaotic and sometimes violent approach. So, they would likely clash at first. For example, Batman might try to reason with her, but Killer Frost could respond with sarcasm or aggression.
One idea could be a story where Batman has to team up with Killer Frost to stop a common enemy that is freezing Gotham City. They start off distrusting each other but as they face challenges together, they learn to work as a team.
A more complex storyline could be set in an alternate universe where Batman and Killer Frost are in a relationship. This relationship would face many challenges. For example, Batman's no - killing code might conflict with Killer Frost's more ruthless nature. Their relationship could also put Batman at odds with his allies, who may not trust Killer Frost. But through it all, they try to make it work while also protecting Gotham.
There are fanfictions where Killer Frost has a change of heart after interacting with Batman. Maybe she starts to see the value in protecting the innocent, like Batman does. In these stories, Batman might try to rehabilitate her, leading to a lot of character development for both of them.
Writing fanfic about sexual content involving characters is generally not appropriate. It goes against the ethical use of fictional characters and can make many fans uncomfortable. Moreover, it may also violate the terms of use of the related franchise.
One great 'Batman and Killer Frost Fanfiction' is 'Frosty Encounters'. It shows an interesting dynamic where Batman tries to understand Killer Frost's motives. The author does a great job of portraying Killer Frost's complex personality.
First, know the character well. Jack Frost is often depicted as mischievous yet kind - hearted. Start with a unique idea, like Jack Frost visiting a tropical island and causing chaos in a funny way. Develop the plot around his powers and how they interact with the environment. For example, his ability to create ice sculptures could be a key part of the story.
In some fanfictions, their relationship evolves into a sort of begrudging respect. Batman realizes that Killer Frost has her own code, and Killer Frost sees that Batman is not just a do - gooder but a complex person. They start to work together on small tasks, like rescuing hostages in a situation where Killer Frost's powers are useful.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for 'Batman and Killer Frost' related ones. There are different categories and tags to help you narrow down your search to the type of story you want.
Killer Frost is alluring in 'Batman: Assault on Arkham' fanfiction because of her powers. Her ability to control ice makes for some really cool (pun intended) action scenes. Writers can use this to create intense battles or escape scenarios. For instance, she could freeze an entire corridor in Arkham to stop guards from chasing her.