One common theme could be friendship development. Since they are both characters in the Kuroshitsuji universe, their relationship might start as acquaintances and grow into a deeper bond in fanfics. Another theme might be adventure, where they go on some sort of journey together.
In 'Dagger x Peter Kuroshitsuji fanfic', a frequent theme is loyalty. They might show loyalty to each other in different situations, like facing danger or difficult decisions. Also, self - discovery can be a theme. As they interact, they could learn more about themselves and their place in the world of Kuroshitsuji. There could also be themes of sacrifice, where one is willing to sacrifice for the other's well - being.
Common themes in 'Dagger x Peter Kuroshitsuji fanfic' can be quite diverse. Some stories might focus on the theme of redemption. Maybe one of the characters has made some mistakes in the past and through their relationship with the other, they find a way to redeem themselves. Family - like relationships can also be a theme, where they support and care for each other like family members. And of course, there could be themes of mystery, as they might be involved in some mystery - solving together within the Kuroshitsuji setting.
I'm not sure which specific 'Dagger x Peter Kuroshitsuji fanfic' are the best. You can try searching on fanfic websites like Archive of Our Own. There are often user - rated and reviewed stories there that might include some great ones about this pairing.
One common theme is the power dynamic. Ciel, as a human, has power over Sebastian in the sense of their contract, but Sebastian's demonic powers far exceed Ciel's. Another theme is loyalty and betrayal. There's always the underlying question of whether Sebastian will truly fulfill the contract or if he might find a way to betray Ciel. Also, the theme of revenge is prominent as Ciel is seeking revenge for his family's death and Sebastian is a key part of that journey.
One common theme is the forbidden love. Since Sebastian is a demon, a relationship with a human (the reader) is against the natural order. Another theme could be the power dynamic, as Sebastian has a lot of power and the reader may be in a more vulnerable position. And of course, there's the theme of mystery, as Sebastian's true motives and the nature of his relationship with the reader are often explored.
In 'peter x susan fanfic', self - discovery can be a theme. As they interact, they might learn more about themselves. Also, the theme of loyalty often appears. They could face situations where their loyalty to each other is tested. And sometimes, there's the theme of magic or special powers if they are from a fantasy - based original story, and how these elements play into their relationship.
A common theme is friendship evolving into love. Often, the characters start as friends and gradually develop deeper feelings for each other.
One common theme is mentorship. Tony often takes Peter under his wing, guiding him in the world of superheroes. For example, in many fics, Tony teaches Peter about new tech for his suit.
Friendship is a very common theme. Since they are both heroes in their own rights, their friendship can be a strong bond that overcomes many obstacles.
Adventure is also a big theme. The two characters might go on various adventures together, which helps to strengthen their bond and also makes for an exciting read. For example, they could be fighting against a common enemy or exploring a new world, and in the process, their relationship deepens and changes in interesting ways.
One common theme is the age - gap dynamic. Given that Peter is much younger than Natasha, it creates an interesting contrast in their relationship. Another theme is mentorship. Natasha can often be portrayed as a mentor figure to Peter, guiding him in the ways of the superhero world.
A prevalent theme is the overcoming of obstacles. There could be external factors like school bullies or family disapproval that they have to deal with in relation to their relationship. Additionally, self - realization is a theme. As they interact more, they realize their own strengths and weaknesses, and this affects their relationship in different ways. There's also the theme of shared interests, which often brings them closer together.