At first, it could be a relationship full of tension. Harley Quinn might play pranks on Spiderman, thinking he's too uptight. But as time goes on, Spiderman's kindness and his willingness to give her a chance could soften Harley Quinn. They could start sharing stories about their pasts, with Spiderman talking about Uncle Ben and Harley Quinn talking about her relationship with the Joker. This sharing could lead to a deeper understanding and a more friendly relationship, where they look out for each other.
At first, their relationship might be rocky. Deadpool's over - the - top and often inappropriate behavior could clash with Harley's more chaotic but still somewhat focused on the Joker - related drama. But as they spend more time together, they could start to respect each other's skills.
Harley's character could develop in many ways. She might become more protective and motherly, which is a big change from her usually wild and carefree self. This new - found sense of responsibility could make her question her relationship with Joker and the life of crime they lead.
In such fanfiction, Harley Quinn may develop by becoming more self - aware. The prison setting could force her to confront her past actions. The 'lemon' aspect, say a new relationship, might make her more empathetic as she learns to care for someone else in a difficult situation. For example, if she falls in love with a fellow prisoner, she might start to see the value in others' lives more than before.
Their relationship could develop in a really comical way. For example, Deadpool might constantly try to hit on Harley, but she just brushes him off. However, as they get into more and more dangerous situations, she realizes that he's actually a really good ally. They start to have inside jokes and a unique camaraderie that is based on their shared love for chaos and mayhem.
In some fanfictions, their relationship starts as pure enmity. Batman is constantly trying to stop Poison Ivy and Harley Quinn's criminal activities. But as the story progresses, they might find common ground. For example, they all might have a shared enemy that forces them to work together briefly.
Some fanfictions explore their relationship development through Harley Quinn's past. Maybe she has flashbacks to her life before Joker, and this new self - awareness makes her question their relationship. Joker, in turn, has to deal with a Harley who is becoming more independent, and this creates a new dynamic between them.
One possible plot could be that Spiderman is on a mission in Gotham City and accidentally crosses paths with Harley Quinn. They initially clash because of their different methods, but then they realize they both have a common enemy in a new super - villain who is causing chaos in both their worlds. So they team up, with Spiderman teaching Harley Quinn about the importance of protecting the innocent, and Harley Quinn showing Spiderman how to have a bit more fun while fighting crime.
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 plot idea could be that Spiderman and Harley Quinn team up to take on a common enemy in Gotham. Maybe a new villain emerges who has technology that can disrupt both of their cities, so they have to combine their skills. Another could be a story where Harley Quinn, being a bit of a wild card, accidentally gets transported to Spiderman's New York and they have to figure out how to get her back while also dealing with the chaos she causes.
In these fanfics, Harley Quinn often develops by breaking free from her past with the Joker. The presence of Batman can be a catalyst for change. For instance, she may start to see the error of her ways and use her intelligence and skills for good. The 'lemon' element could represent a sour past that she is leaving behind. As she distances herself from her old life, she becomes more independent and confident, no longer relying on the Joker's approval.