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.
Common themes may include the exploration of love and acceptance. In a world where Kagome and Sesshomaru come from different backgrounds, their relationship resulting in a pregnancy would force them to face many challenges. It could be about how they find love in this new situation and how the people around them come to accept or reject their relationship. There might also be themes of sacrifice, as they might have to sacrifice certain things to protect their future together and the unborn baby.
Protection is a major theme. Kagome is usually portrayed as a protector, and Sesshomaru, with his great power, also gets involved in protecting the baby. There might also be a theme of growth. The characters, especially Sesshomaru, grow and change as a result of the situation with the baby. They might become more open - minded or develop new values.
Well, often there is a theme of family acceptance. Since this is a non - traditional family situation, the fanfics may explore how Sesshomaru's family or Kagome's family back in her own time deal with the news. There could also be a theme of protecting the unborn child. Given the dangerous world they live in, with demons and all, both Kagome and Sesshomaru would need to ensure the safety of their baby. Additionally, the theme of changing relationships is common. Their relationship might start as an unexpected or even hostile one and then transform into a more loving and protective one because of the pregnancy.
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.
In many of these fanfictions, a common theme is the forging of an unexpected bond. Given that Kagome and Sesshomaru start off as rather unlikely allies or even antagonists, the development of a relationship that leads to mating often involves the discovery of shared values or hidden compatibilities. Another theme is the protection aspect. Sesshomaru, with his power, might be in a position to protect Kagome, and in turn, Kagome's unique qualities might offer something valuable to Sesshomaru. The theme of redemption can also play a role, perhaps Sesshomaru finding a new purpose or a more positive path through his relationship with Kagome.
One common theme is the exploration of cultural differences. Kagome comes from a modern human world, while Sesshomaru is from a feudal demon world. Their baby would be a unique blend of both cultures. Another theme could be the acceptance of the baby within their respective communities. There might be resistance from some, like Sesshomaru's demon clan who may have strict views on purity. Also, the growth and development of the baby, with its unique powers inherited from both parents, is often a theme. The fanfiction might show how the baby learns to control its powers and find its place in the world.
One common theme is the fear and excitement of becoming parents. Kaname and Kagome, like any couple, would be experiencing a mix of emotions. Another theme could be the protection of the unborn child. Given their fictional universes, there might be various forces that could pose a threat to the pregnancy.
The theme of sacrifice could be present. Sesshomaru might have to sacrifice his solitary lifestyle and some of his pride to be there for Kagome and the baby. Kagome may have to sacrifice her own plans and dreams for a while to focus on the pregnancy. Additionally, the theme of unity could be explored as they have to be united in facing the challenges that come with her pregnancy, such as potential threats from other characters who don't approve of their relationship.
A common plot is the development of an unlikely bond. Sesshomaru, who is usually cold - hearted, gradually warms up to baby Kagome. Another plot point could be Sesshomaru protecting Kagome from various threats, like other demons or even humans who might see her as an oddity. For example, he might have to fight off a group of demons who sense her spiritual power even as a baby.
One common theme is the power dynamic between Sesshomaru and Kagome. Sesshomaru is a powerful demon and Kagome has her own unique powers as the reincarnation of Kikyo. Their relationship often explores how these powers interact.
The themes usually revolve around discovery. Sesshomaru discovers emotions he didn't know he had in relation to Kagome. Kagome discovers the depth of the demon world and Sesshomaru's place in it. There is also the theme of sacrifice. In some stories, either Sesshomaru or Kagome might be willing to sacrifice something for the other's sake, whether it's their own power, their place in their respective worlds, or even their lives, to protect the new - found relationship they have.