One possible plot twist could be that Poison Ivy decides to protect Batman's secret instead of using it against him. Maybe she realizes that Gotham needs Batman more than she needs revenge or chaos at that moment.
In this fanfiction scenario, Poison Ivy may initially be angry. She might feel betrayed if she had some sort of relationship with either Bruce Wayne or Batman before. She could also be a bit jealous, thinking that Batman has been hiding this huge part of himself from her. However, on the other hand, she could also be impressed by the lengths Bruce goes to protect the city. This new knowledge could lead to a whole new dynamic between her and Batman, with her either becoming an ally or an even more dangerous foe, depending on her motives and the events that unfold in the fanfiction.
One classic story could be about Poison Ivy trying to use her plant powers to sway Bruce Wayne towards her view of environmental protection. She might start by targeting Wayne Enterprises' less eco - friendly operations. Bruce, as Batman, initially resists but then realizes they can work together in some ways. For example, they could collaborate on a new green initiative in Gotham.
One common theme is the clash of natures. Bruce is all about order and justice in Gotham, while Poison Ivy represents nature and chaos in a way. Their relationship often explores how these two opposing forces can coexist or even complement each other.
There's 'Bloom in the Dark'. This fanfic focuses on Poison Ivy using her powers in a more benevolent way to help Gotham, which catches Bruce's attention. It's interesting as it shows a different side of Ivy, and how she and Bruce gradually grow closer. The descriptions of Gotham's seedy underbelly and the contrast with Ivy's green havens are really well - written.
One reason could be that Bruce Wayne never had the traumatic event that led him to become Batman in the original story. Maybe his parents' death was prevented somehow, so he never felt the need for vengeance and justice in that extreme way.
One possible plot twist could be that the kiss is part of a ploy by Poison Ivy to control Batman's mind. Maybe she has a new strain of her pheromone - based powers that she's testing on him through the kiss. However, Batman being Batman, he has some sort of antidote or mental resistance that he activates mid - kiss, which then turns the tables and he uses the situation to get information from her instead.
One possible theme could be the power struggle. Poison Ivy is a powerful character with her plant - based abilities and Batman has his detective skills and gadgets. A kiss could be part of a power play between them, like she's using it to manipulate him or he's trying to get closer to stop her plans.
One reason could be her power over plants. She can control them to attack Batman, like making vines wrap around him.
In many fanfictions, their relationship starts off antagonistic. Poison Ivy sees Bruce as part of the problem with the environment due to his business empire. But as the story progresses, she discovers his alter - ego Batman is actually trying to clean up Gotham in his own way. This new understanding leads to a thawing of their relationship.
A possible plot for a Poison Ivy kiss Batman fanfiction could start with Poison Ivy kissing Batman during a fight. The kiss transfers some of her powers to him temporarily. Batman then has to deal with these new - found plant - based abilities while also trying to figure out why Poison Ivy did it. Is it a trap? Or is she actually trying to form an alliance? As he delves deeper, he discovers that Poison Ivy is being blackmailed by another villain to use her powers on Batman. Batman then has to decide whether to help her or use this situation to his advantage and finally stop her once and for all.