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.
A frequently seen theme is the change in relationships. The OC's pregnancy can cause a shift in Sesshomaru's relationships with other characters. For example, he may become closer to allies who offer support during the pregnancy, or more distant from those who oppose the union. Also, there's often the theme of anticipation and fear. The OC may be scared about the future, and Sesshomaru has to deal with his own fears of being a father while also reassuring her.
The exploration of the demon world's view on pregnancy is also a theme. Since Sesshomaru is a demon, the fanfiction may explore how the demon community reacts to the pregnancy. Some may see it as a sign of strength, while others might be jealous or view it as a weakness. This can lead to various sub - plots and conflicts within the story.
Love and redemption are also prevalent themes. Sesshomaru may be seen as a cold and aloof character at first, but through his relationship with the si oc, he may experience a change of heart. The si oc might also find redemption in their own way, perhaps by helping Sesshomaru or the people in the Inuyasha world. This theme adds a lot of depth to the stories.
One common theme is the struggle of an ordinary oc becoming worthy of a powerful being like Sesshomaru. It often involves the oc having to prove themselves, either through strength or some other special quality.
Well, the theme of redemption can be quite common. The male oc may have a past he's not proud of, and Sesshomaru's presence helps him on the path to redemption. Or vice versa, Sesshomaru might find himself changing for the better. Another theme is the struggle against a common enemy. They have to put aside their differences and work together. And also, the theme of loyalty often comes up. Once they form a bond, they are loyal to each other through thick and thin.
One common theme is the power dynamic. Since Sesshomaru is a very powerful demon, often the OC has to find their place in relation to his power. It could be that the OC is initially in awe or in conflict with his power. Another theme is the exploration of the Inuyasha universe. The fanfic usually uses the setting and lore of the Inuyasha world, and the OC gets to experience it, whether it's the different demons, magic, or the feudal Japan - like setting.
Another theme is the exploration of power. The OC usually has some unique power or ability, and how Sesshomaru reacts to it is a big part of the story. Sometimes they might have a power struggle, or they might learn from each other's powers.
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.
Well, often there's the theme of dealing with the consequences of their relationship. It could involve how Kagome copes with the pregnancy in a world that may not accept their union easily. Also, the story might focus on Sesshomaru's reaction and how his character evolves in this new situation. There could also be themes related to protecting the unborn child from various threats in the Inuyasha universe.
One common theme could be the exploration of Sesshomaru's character development. How he, who was once a cold and aloof demon, would adapt to the idea of becoming a father. Another theme might be the changes in Rin's relationship with Sesshomaru and the others around them. For example, how would the other characters in their world react to this new development.
One common theme is the struggle with identity. The OC, being pregnant, may question who she is now and how it changes her role in the TVD world. For example, is she still a fighter against the vampires or does the pregnancy make her more vulnerable and change her priorities.