Well, one way to portray their relationship differently is to make Catwoman a sort of mother figure to Batman Beyond. She could be constantly nagging him about taking better care of himself while also teaching him valuable skills. Another possibility is to have them be friends who share a love for art. In the Batman Beyond universe, they could meet at art galleries or while protecting art pieces from thieves. This would add a new dimension to their relationship. Also, their relationship could be that of a detective and a suspect who gradually develop respect for each other as they work on cases together. Batman Beyond starts to see Catwoman as more than just a criminal, and Catwoman begins to admire Batman Beyond's tenacity.
Their relationship could be portrayed as a mentor - mentee relationship. Catwoman, with her years of experience, could be teaching Batman Beyond some of the more subtle aspects of crime - fighting, like how to read a criminal's motives just by observing their body language. Another way is to show them as rivals in a different sense. Instead of just fighting over loot, they could be competing to solve a mystery first. Or, they could be portrayed as reluctant allies. They don't trust each other completely, but they know that they need to work together to stop a greater evil.
The relationship between Catwoman and Dick Grayson can be depicted as a detective - informant relationship. Catwoman has her ears to the ground in the criminal underworld and provides Dick with valuable information. Dick has to trust her, which is difficult for him given her past. Another portrayal could be that of a cultural exchange. Catwoman comes from a more street - smart and self - serving background, while Dick has the discipline and training of the Bat - family. They teach each other about their different ways of life. It could also be shown as a relationship of convenience. They both need something from each other at a particular moment. For example, Catwoman needs protection from a certain enemy, and Dick needs her help to infiltrate a criminal organization. So they form a temporary alliance that may or may not develop into something more.
Their relationship can be shown as a complex dance of attraction and mistrust. Batman is always on guard around Catwoman due to her criminal past, but at the same time, he can't deny the allure she has. In Young Justice fanfiction, this could be played out with them constantly sparring verbally and physically, with a hint of underlying passion.
It could be shown as a very strained relationship. For example, Wonder Woman might initially be very hostile towards Batman, seeing him as a threat to the order Superman has created. But as time goes on, she starts to see the value in his approach. There could be many tense confrontations between them that gradually turn into more respectful exchanges as they understand each other better.
A way to develop their relationship in this type of fanfiction is through joint parenting. They might have different approaches to raising their kids. Batman could be very strict about discipline and training, while Catwoman might be more lenient and focus on teaching the kids about the importance of freedom. Through these differences, they learn to understand each other better and grow closer as a couple. Also, they could face external threats to their family which forces them to rely on each other more, strengthening their bond.
Their relationship could be portrayed as a more mentor - mentee relationship. Batman could see the potential in Harleen to be redeemed and takes her under his wing, teaching her how to use her skills for good instead of for the Joker.
In fanfiction, Batman and Catwoman's son is often portrayed as a complex character. He might inherit his father's sense of justice and detective skills, along with his mother's agility and charm. For example, some stories show him torn between the two worlds of his parents, trying to find his own identity while being influenced by the shadowy Gotham and its heroes and villains.
Their relationship could be portrayed as a mentor - mentee relationship in a different way. Instead of Orochimaru trying to use Naruto for his own gain, he could genuinely see Naruto's potential and guide him in the ways of some of the more esoteric jutsu. For example, Orochimaru could teach Naruto about the secrets of the snake contract without any ulterior motives. Another way is to show them as reluctant allies. Maybe there's a common enemy that is so powerful that they have no choice but to work together, and over time, they start to respect each other's abilities.
One great 'Batman Beyond Catwoman' fanfic is 'Shadows of the Night'. It really delves into the complex relationship between Batman and Catwoman in the 'Beyond' universe. The author does an amazing job of portraying Catwoman's character, giving her new layers of depth while still maintaining her alluring and mysterious nature.
In some fanfictions, the Naruto - Sakura relationship is portrayed as a slow - burn romance. Naruto's continuous efforts to protect Sakura gradually make her fall for him. In contrast, in the original series, Sakura was mainly focused on Sasuke. Fanfiction gives an opportunity to change that narrative.
One interesting plot could be Catwoman in the 'Batman Beyond' universe stealing a high - tech item that has the potential to disrupt the new Gotham's power grid. Batman Beyond then has to track her down, leading to a series of high - speed chases across the city's skyline. Another plot might involve Catwoman forming an unlikely alliance with Batman Beyond to take down a new criminal organization that is using advanced technology for illegal activities. And perhaps a plot where Catwoman discovers a secret about Batman Beyond's identity and uses it to her advantage in a heist.