One common theme is the exploration of a romantic relationship between Sebastian and the OC. Writers often create scenarios where the two characters are drawn to each other in unexpected ways.
One common theme is the power dynamic. Since Sebastian is often a powerful character, the relationship with the OC can explore how power is balanced or unbalanced between them. For example, in some stories, the OC might be initially powerless against Sebastian but then find ways to assert themselves.
A lot of Sebastian Stan and OC fanfiction also has the theme of self - discovery. As the OC gets involved with Sebastian, she often discovers new things about herself, like her strength or her true desires. And of course, the theme of 'fame and its impact' is there too. How Sebastian's fame affects their relationship, whether it causes problems or makes it more interesting.
Another theme is the clash of different worlds. Sebastian comes from a certain background, and the OC usually has her own. Their relationship often involves navigating the differences between their two worlds, whether it's social status, values, or personal beliefs. This creates a lot of interesting conflict and drama in the fanfiction.
Communication is also key. The OC could start off being a bit afraid of Sebastian but as they talk more, she realizes he has his own code of honor. For example, in quiet moments in the Phantomhive library, they have conversations about their different worlds. The OC might share her human experiences and Sebastian could talk about his duties as a butler, which gradually deepens their bond.
Love is often a prominent theme. It could be a slow - burn love story, with lots of moments of hesitation and growing affection. Also, self - discovery can be a theme. As they interact, both characters might learn more about themselves. For example, oc lemon might discover new strengths or weaknesses through her relationship with bb sebastian.
Well, there's a fanfiction titled 'The Transfer Student and Sebastian'. In this story, an OC transfer student comes to the school and has a complex relationship with Sebastian. They start off as rivals but gradually develop a deeper connection. Also, 'Sebastian's Musical Partner' is a good one where an OC with amazing musical talent teams up with Sebastian for various performances and they face different challenges together.
One common theme is the discovery of their relationship. It could be how they first meet and the initial spark between them. Another is the challenges they face together, like dealing with other characters who might not approve of their relationship.
A common trope is the 'forbidden love' trope. Since Sebastian has his own duties and often a dark nature in many interpretations, a relationship with a female oc can be seen as something that goes against the norm or is dangerous. Another is the 'damsel in distress' trope where the female oc gets into trouble and Sebastian has to save her.
One great Sebastian OC fanfiction is 'The Demon's Bond'. It has a really interesting original character who forms a unique relationship with Sebastian. The plot is full of twists and turns, and the writing style is engaging.