Well, the fanfiction could start with Harley Quinn finding out she's pregnant. The Joker is shocked at first but then decides to keep the baby as part of his 'grand plan'. As the baby grows, they have to deal with raising it in their chaotic world. Harley tries to give the baby a normal life as much as possible, while the Joker is constantly getting into trouble that puts the family in danger. It could also explore how the baby affects their relationship, whether it brings them closer or drives them further apart.
The relationship might become more complex. Harley would likely be more protective and demand more stability from the Joker for the sake of the baby.
One idea could be that Harley Quinn and Joker have a baby, and the baby inherits their chaotic and unpredictable nature. Maybe the baby starts causing mayhem in Gotham from a very young age, and the other villains and heroes are all shocked and don't know how to deal with this new situation.
One idea could be that the baby has the Joker's chaotic nature but Harley's charm. For example, the baby might play pranks on the henchmen in a really cute yet mischievous way. Another could be that the baby has some special powers, like being able to make people laugh uncontrollably just like the Joker, but also has Harley's acrobatic skills at a very young age. Maybe the baby could be the key to a new, more 'family - oriented' life for the Joker and Harley, leading them to try and reform for the sake of their child.
Their relationship could potentially soften on Joker's part. Having a baby might make him see things in a different light. He might not be as cruel or reckless as before, at least when it comes to the baby. Harley, on the other hand, would be more determined than ever to keep the family together, even if it means constantly trying to reform the Joker. But at the same time, the pressure of raising a child could also lead to more fights between them as they struggle with their own issues and new responsibilities.
One idea could be a story where Harley Quinn tries to break free from the Joker's control completely and starts her own life of crime without him. She could form her own gang and prove that she's more than just the Joker's sidekick.
The relationship can be portrayed as a journey. At first, the Joker and Harley might not know how to be parents. They could be clumsy and make mistakes. But as the baby grows, they start to adapt. The Joker might start to soften a bit, realizing that his actions could affect the baby's future. Harley would be the glue that holds the family together. She could be the one who arranges family dinners, even if it's just pizza in their hideout. The baby could also bring out a competitive side in them, like who can teach the baby the coolest trick or skill.
I really like the fanfiction 'The Dark Romance of Joker and Harley'. It has a great take on their relationship, showing how they both feed off each other's madness. 'Harley Quinn's Revenge' is also good. Here, Harley decides to take revenge on the Joker for all the wrongs he has done to her. It's an exciting read as it shows a different side of Harley. Then there's 'Joker's Secret Plan' which involves a lot of mind - games between the two characters, making it a very engaging fanfiction.
One great 'Harley Quinn Joker Fanfiction' is 'Mad Love Reimagined'. It delves deeper into the complex relationship between Harley and Joker, exploring Harley's psyche as she falls deeper into the Joker's chaotic world. The writing style is vivid and really brings out the twisted nature of their relationship.
Well, the plot could involve Harley Quinn and the Joker having an unexpected pregnancy. It could show how their relationship changes. The Joker might initially be dismissive or even angry, thinking it'll disrupt his plans. But Harley could be determined to have the baby and try to make the Joker understand the importance of family, or at least her version of it. There could also be a lot of drama with other villains or heroes reacting to the news of Harley being pregnant.
Joker would probably see the Twilight world as a new playground. He might try to mess with the Cullens, seeing them as too 'perfect' and in need of some chaos. Harley, on the other hand, could be fascinated by the idea of eternal love in the Twilight series. She might even try to get involved in the relationships, perhaps causing some jealousy or misunderstandings.