It could be a die - hard cosplayer. Harley Quinn spots this person at a convention looking exactly like her and decides to kidnap them, either because she's flattered or thinks they're trying to steal her identity in a strange way.
Perhaps the fan is a criminal psychologist who has been studying Harley Quinn's psyche. Harley gets wind of this and kidnaps the psychologist to find out what they know and to mess with their mind.
The fan could be a young journalist who was trying to get an exclusive interview with Harley Quinn. Harley, not trusting the media, kidnaps the journalist thinking they will expose her secrets.
One plot idea could be that Harley Quinn kidnaps a fan who has been obsessively following her every move. She then takes the fan to an abandoned amusement park she has claimed as her own. There, she tries to figure out if the fan is a threat or just a harmless admirer. She plays mind games with the fan, like making them choose between two equally dangerous tasks.
Poison Ivy might be a candidate in some creative fanfiction interpretations. Their relationship has always been very close, and if there was some kind of magical or experimental situation, Ivy could potentially be the other parent. This would lead to a very unique family dynamic and story arc.
The Joker is an obvious choice as he has a long - standing relationship with Harley Quinn in the original lore. Their complex and often toxic relationship could add a lot of drama to the pregnancy storyline.
The story could start with a strange portal opening in Gotham City. Out comes Naruto, all confused about this new and dark place. Harley Quinn, who was just about to cause some trouble, sees Naruto and is intrigued. She approaches him, not knowing what to make of this strange - looking boy with orange clothes and a headband.
There are many great authors in the Harley Quinn fan fiction world. One popular one is [Author Name 1]. Their stories often explore Harley's complex relationship with the Joker in a really deep and interesting way.
It could be someone who wants to use Naruto's unique heritage against him. Maybe a villain from the Naruto universe who sees Naruto's connection to Harley Quinn as a weakness. For example, Orochimaru might want to capture Naruto to study his strange combination of powers.
Harley Quinn would be the central figure. Then there could be a powerful inmate who rules a part of the prison. This inmate could have a complex relationship with Harley, which ties into the 'lemon' aspect, like a love triangle with another character. And don't forget the warden, who could be constantly trying to keep Harley in line but is always outwitted by her.
The Joker is an obvious choice. His relationship with Harley Quinn is complex and his chaotic nature can add a lot of drama to the fanfiction. Also, Poison Ivy could be included. She has a strong friendship with Harley, and her plant - based powers can create interesting scenarios when combined with Batman's detective skills.
Harley Quinn was originally a psychiatrist named Dr. Harleen Quinzel. She worked at Arkham Asylum and became obsessed with the Joker during her sessions with him. The Joker manipulated her, and she fell in love with him, eventually turning into the chaotic Harley Quinn. She has a unique appearance with her red and black jester - like costume. She's often seen as a villain, but she also has her own complex personality and has had story arcs where she tries to break free from the Joker's influence.
The main character is, of course, Harley Quinn herself, also known as Harleen Quinzel. And then there's the Joker, who plays a huge role in her transformation. Poison Ivy is also an important character in Harley's story. They have a friendship, and Ivy often helps Harley out in various situations.