Well, in this kind of fanfiction, the plot usually depends on the writer's creativity. It could be that Levi is forced to kidnap Eren due to some external threats. For example, there might be a group that wants to harm Eren, and Levi believes that by taking him into his own 'protection' through kidnapping, he can keep Eren safe. However, this also sets up a lot of potential conflicts between them and other characters.
Next, Eren could try to escape. Given his strong will, he won't just sit there and accept being kidnapped. He might use his titan powers in a creative way to break free from Levi's clutches.
Fanfiction about Eren and Levi kissing can be quite interesting. It might explore a different side of their relationship. Some fanfictions in this regard could be about a moment of emotional intensity between them, where the kiss represents a deep connection that goes beyond their usual interactions in the original story.
Sephiroth might use Cloud to gain some sort of leverage against their common enemies. Or perhaps he wants to extract some information from Cloud. It's all very mysterious.
One common theme is friendship. Despite their differences, they often form a deep friendship in the fanfictions. For example, in many stories, eren's impulsiveness and levi's stoicism complement each other and they learn from one another.
One aspect of Levi x Eren family fanfiction could be the exploration of their relationship in a family - like dynamic. It might involve how they support and protect each other within this new family structure. For example, Levi could be a strict but caring figure, while Eren is the one with new - found responsibilities in this family.
In many Sasuke - Sakura fanfictions, a kidnapping plot can add a lot of drama. If Sasuke kidnapped Sakura, it could be due to various reasons. Maybe he was influenced by some dark power that made him lose his rational thinking and see Sakura as a key to something he wants. This kind of plot often leads to a series of events where Sakura has to face her feelings towards Sasuke in a very extreme situation, like trying to understand his motives while also being scared for her own safety.
One popular Levi and Eren fanfiction is 'The Bonds Beyond Walls'. It delves deep into their complex relationship, exploring how they grow to understand and rely on each other in a post - apocalyptic world. Another is 'A Different Path' which takes a more alternate universe approach, where they meet in a modern - day setting and form a unique bond. There are also many that focus on their friendship during their training days, like 'Training Grounds Tales' which shows their initial clashes and gradual respect for one another.
One common theme is friendship. They often start as comrades and gradually develop a deeper bond. For example, they might start by just respecting each other's fighting skills and then move on to really caring about each other's well - being.
One common theme is the adjustment to married life. Since they have different personalities, like Levi being more reserved and Eren more impulsive, they have to learn to understand and compromise with each other. Another theme is the protection of their relationship from external threats, whether it's other people's opinions or dangerous situations in the story's world.
The theme of secrecy is quite prevalent. Since vampires are often hidden from the human world, Eren and Levi have to keep their relationship and their true natures a secret. This adds a layer of mystery and tension to the fanfiction. Also, the exploration of what it means to be a vampire, like the need for blood and the immortality, is a common theme that authors like to play with in these fanfictions.