One common theme could be the struggle of the OC (original character) with the unexpected pregnancy in the chaotic world associated with the Joker. Another might be how the relationship with the Joker (if there is one) changes due to the pregnancy.
Common themes may include the OC's internal conflict. On one hand, there's the new life growing inside her, and on the other, she's in the world of the Joker. There might be themes of sacrifice, like whether she'll sacrifice her own safety or freedom for the baby. Also, the reactions of other characters in the Joker's world to the OC's pregnancy can be a theme, such as envy, concern, or manipulation.
Well, often there's the theme of the OC dealing with the fear and uncertainty that comes with being pregnant in such a dangerous and unpredictable setting. There could also be themes related to protecting the unborn child from the Joker's enemies or the Joker's own volatile nature.
One common theme is the exploration of madness. Since the Joker is known for his insanity, OC characters often get caught up in his world of chaos and have to deal with their own sanity being tested.
One common theme could be the power dynamic between the Joker and the OC. Since the Joker is such a complex and powerful character, exploring how an OC interacts with him in terms of power can be interesting.
One common theme is the power struggle. The Joker is a powerful and chaotic character, and the OC often has to find a way to either match his power or outwit him. For example, in many stories, the OC might have a unique ability that gives them an edge in this struggle.
One common theme is chaos. The Joker is all about chaos, and when you introduce an original character (oc), it often shows how the oc either thrives in or tries to combat that chaos. For example, in many fics, the oc might be trying to bring some order to the Joker's madness.
A frequently seen theme is secrecy. In many pregnant OC fanfictions, the OC may try to keep her pregnancy a secret for various reasons. It could be because she's in a dangerous situation, like in a dystopian fandom setting where being pregnant might make her a target. Or it could be due to relationship issues, such as she's not sure how the father will react. Also, the theme of acceptance is important. Whether it's the OC accepting her new role as a mother - to - be or the community accepting her and her unborn child.
Another theme is the battle between good and evil, especially within the OC themselves. They might start out with good intentions but be slowly corrupted by the Joker's influence. This internal struggle is often explored in great detail in these fanfictions, showing how the Joker's presence can be a catalyst for change, even if it's a change towards the darker side of human nature.
One common theme is the corruption of innocence. The male oc often starts out with some sense of normalcy or goodness, and the Joker gradually chips away at that. Another theme is the exploration of chaos and order. The Joker represents chaos, and the male oc may be trying to bring some order or may be completely swept up in the chaos. Power dynamics is also a theme, with the Joker usually being in a position of power over the male oc, at least initially.
The theme of unpredictability is quite common too. The Joker is famously unpredictable, and when you add a criminal OC into the mix, it amps up the element of surprise. Readers never really know what they are going to do next. Whether it's a sudden change in alliance or a new scheme they come up with, this keeps the readers on the edge of their seats. It also allows for a lot of creativity in the writing as the authors can take the story in unexpected directions.
One common theme is the journey of self - discovery for Sesshomaru. The OC's pregnancy forces him to look at himself and his place in the world in a new light. Another theme is the protection of the unborn child. Sesshomaru, being a powerful character, will go to great lengths to keep the OC and the baby safe.
Another theme might be Klaus's reaction to the pregnancy. Some fictions explore whether he is protective, indifferent, or even hostile at first. His complex character adds a lot of depth to this kind of storyline.