What are the common themes in 'little brother castiel fanfiction'?

Protection is a very common theme. The big brother often takes on the role of protecting the little brother from harm, whether it's physical danger or emotional distress.

One common theme is identity. Since Castiel is usually male in the original series, when she's female in fanfiction, there's a lot of exploration about how she sees herself and how others perceive her. For example, some fics show her struggling with the new body and the expectations that come with it.

One common theme is friendship. Their bond, whether it's a platonic friendship or something more, is often explored. Writers like to show how they support each other through tough times.

One common theme is redemption. When Castiel is hurt, often the story will revolve around him finding a way to redeem himself, whether it's from a mistake he made that led to his pain or just from a sense of lost purpose. For example, in some fanfictions, he might have been hurt because he trusted the wrong entity and then has to make amends.

One common theme is the theme of rescue. Usually, the other characters, like Dean and Sam, will go to great lengths to save Castiel. For example, they might face numerous dangerous creatures or powerful enemies in their quest to rescue him.

One common theme is redemption. Since Castiel has made some mistakes in the show, a lot of fanfiction focuses on him trying to make up for those. Another theme is his relationship with the other main characters, like Dean and Sam. His loyalty and how it is tested is often explored.

One common theme is Castiel's struggle with his angelic nature and his growing humanity. He often has to choose between following angelic orders and doing what he believes is right. Another theme is his loyalty to the Winchesters, especially Dean. His relationship with Dean is a central focus in many fanfics, whether it's a deep friendship or something more. Also, themes of redemption are common, as Castiel has made many mistakes in the series and fanfics often explore his path to redemption.

Family relationships are a common theme. Since Harry is a little brother in these fanfictions, there's often exploration of his bond with his siblings, like how they protect each other or have sibling rivalries. Another theme could be self - discovery. As a little brother, Harry may have different aspects of his identity to figure out compared to the original story.

One common theme is loyalty. The little brother is often portrayed as being extremely loyal to Sephiroth, no matter what. Another theme is discovery. The little brother might be on a journey to discover his own identity, which is often tied to his relationship with Sephiroth.

The theme of growth is also prevalent. Ron starts as the little brother but as the story progresses in the fanfiction, he can grow into his own person, learning to stand out and be confident despite his position in the family. This growth can be both in terms of his magical abilities and his personal relationships.