One common theme could be identity. Since there are two Ciels, the question of who is the 'true' Ciel might be explored. Another theme could be family, as they are brothers and their family history and relationships play a role.
A 'real ciel x our ciel fanfiction' might explore the complex relationship between the two Ciels. It could delve into their different personalities and how they interact. Maybe it shows how their past experiences shape their present interactions in the fan - created scenarios.
Love and devotion are very common themes. Most fanfictions focus on how deeply Elizabeth loves Ciel and vice versa, despite all the difficulties they face.
One common theme is the idea of the OC being a source of change for Ciel. Since Ciel has a rather dark and set - in - his - ways personality, the OC often comes in and shakes things up, like bringing more light into his life.
The theme of secrecy also pops up a lot. Given the nature of their relationship and the unusual situation of mpreg, they often have to keep it a secret from others. This secrecy adds a layer of tension and mystery to the story, as they try to navigate their lives without others finding out about this major change in their relationship.
Another theme is the exploration of their complex emotions. They both have had difficult pasts, and fanfiction often delves into how they deal with their feelings for each other. For example, how Ciel's cold exterior might crack in the face of Alois's more wild and passionate nature. Also, themes of redemption and acceptance can be found, as they learn to understand and accept each other's flaws in these stories. This can be really interesting as it shows a different side to their characters that may not be fully explored in the original source material.
A common theme is adventure. The male oc often joins Ciel on his various missions and investigations in the Black Butler world. Another theme is friendship that could potentially turn into something more. It shows how their bond grows over time.
Common themes in sebastian x ciel lemon fanfiction include the transformation of their relationship. In the original, it's more of a contract - based relationship. But in fanfiction, it can become a love - based one. There's also often a focus on the physical and emotional attraction between them. The allure of Sebastian's otherworldly nature and Ciel's determination and hidden desires are usually highlighted. This can lead to themes of self - discovery for both characters as they navigate this new type of relationship.
Redemption is also a theme that appears sometimes. Undertaker may be portrayed as having a chance at redemption through his interactions with ciel. This could involve him trying to make up for past wrongs or helping ciel in a way that goes against his previous actions. Fanfictions might explore how this redemption arc could play out and how it affects both characters.
Another theme is sacrifice. Given their situation in the Megaman universe, they may need to sacrifice things for the greater good, and this is often a central part of the stories. For example, one might sacrifice their own well - being to protect the other.
Power and control are also often explored. Ciel is a powerful young lord, and Undertaker has his own kind of power. Fanfictions play around with who has the upper hand in their relationship. There's also the theme of sacrifice. They both have things they might be willing to sacrifice for the other or for their own goals. It makes for some really interesting and emotional storylines.