A typical storyline might involve the male reader being a regular citizen who gets caught up in one of Poison Ivy's schemes. Instead of being angry at her, he tries to understand her motives. This intrigues her and she starts to let him into her world. Another idea is that the male reader is a detective who is assigned to track down Poison Ivy. But as he investigates, he realizes she's not as bad as people think and they form a bond. Also, there could be a story where the male reader has a rare plant - related ability that Poison Ivy wants to use for her own purposes, but then they end up falling for each other instead.
Well, a popular one is when the male reader is a gardener. He has a special connection with plants, which catches Poison Ivy's attention. She approaches him and they begin a journey together, with her teaching him more about the power of plants. There could also be a story where the male reader is a superhero in training and Poison Ivy is sort of an anti - hero. They cross paths during a big battle in the city and their relationship evolves from there. It could be a love - hate relationship at first that turns into something more.
One interesting storyline could be Poison Ivy trying to convert Batman to her environmentalist views. She might use her powers to show him a future where Gotham is destroyed by pollution and convince him that her extreme methods are necessary. Another could be a story where Batman has to rescue Poison Ivy from a more dangerous villain who wants to use her powers for evil. This would put them in an unexpected alliance situation.
A storyline could involve the child being a hybrid of Poison Ivy's plant - based powers and some of Batman's detective skills. For example, the child could use plants to solve mysteries in Gotham. The child might be shunned by society at first because of its connection to Poison Ivy. But as time goes on, they prove themselves to be a force for good. Batman could be initially suspicious of the child but then come to realize that they can be an ally in the fight against crime and the protection of the environment.
One popular storyline is their adventures in Gotham City together. They might be causing chaos against the villains who oppose them or even teaming up to outwit Batman. Another could be their relationship development, like how they support each other through tough times. For example, in some fanfictions, Poison Ivy uses her plant powers to protect Harley Quinn when she gets in over her head in a fight with some of the Joker's goons.
One plot idea could be that the male reader is a new student in the area where Poison Ivy's kids are. He stumbles upon their secret hideout while exploring the forest. They initially see him as a threat but as they get to know him, they realize he has a deep love for nature too, and they start to include him in their little group's adventures.
A lot of these fanfictions play with the idea of the male reader being an 'outsider' who gets drawn into Poison Ivy's world. It could be because he accidentally stumbles upon her lair or has a chance encounter with her. Also, there's the theme of redemption or change. Maybe the male reader helps Poison Ivy see a different side of humanity, or she changes his perspective on nature and the world. There are often elements of mystery and adventure as well, as they navigate the world of Gotham together or deal with other villains.
Another theme could be the protection aspect. Given that Poison Ivy has her own set of enemies, the male reader may be portrayed as someone who protects her and their unborn child. This can add an element of action and drama to the story.
In some fanfiction, a really interesting storyline is when Harley and Ivy get separated for a while. It shows how much they rely on each other. Harley starts to lose her spark without Ivy around, and Ivy feels a bit lost without Harley's energy. When they finally reunite, it's a very emotional moment, and they realize how important their friendship is in the chaotic world of Gotham.
The male reader can be developed through his backstory. For example, if he has a past trauma related to the destruction of a forest he loved as a child, it can shape his interactions with Poison Ivy. His values, like his respect for nature or his sense of justice, can also be emphasized. If he values nature like Poison Ivy does, it can be a strong connection point. Another way is through his reactions to Poison Ivy's actions. If she does something extreme to protect plants, his response can show his character growth, whether he supports her or tries to temper her methods.
One interesting storyline could be them going on a heist together. They use Poison Ivy's plant powers to create distractions and Harley Quinn's acrobatic skills and unpredictability to get past security. Another could be a story where they rescue each other from the clutches of a common enemy. For example, if the Joker tries to harm Harley, Poison Ivy uses her vines to snatch her away. And they could also have a story where they go on a journey to find a rare plant that has the power to make Harley immune to all toxins, which would be very useful in their dangerous Gotham lives.
Another could be a love triangle of sorts. In the fanfiction, Poison Ivy might be jealous of Harley Quinn's growing friendship with Batman. Harley is caught in the middle, torn between her loyalty to Ivy and her newfound respect for Batman. This creates a lot of tension and interesting character dynamics.