A frequent plot device is Loki's change of heart. He might start out not caring much about Tony, but then something happens. It could be that he realizes Tony's importance to the world or to a particular mission. And then there's the whole 'fish - out - of - water' situation for Loki in Tony's world. Loki has to navigate the high - tech environment of Stark Industries while protecting Tony, which creates some interesting scenarios.
A common plot element is that Peter discovers a threat against Tony, often using his spider - sense. Then he takes it upon himself to stop the threat. Another element is Peter's internal struggle between his own safety and his loyalty to Tony. For example, he might be afraid of facing a powerful enemy but still chooses to protect Tony.
One popular 'loki protects tony fanfiction' might be 'Loki's Vow'. In this story, Loki finds himself in a situation where he has to protect Tony from various threats within the Marvel universe. Another could be 'The Guardian Loki' which shows Loki using his magic and cunning to keep Tony safe during a major battle.
One common theme is the clash of personalities. Loki is often seen as the mischievous and complex Asgardian, while Tony is the brilliant and sometimes egotistical human. Their interactions are full of sparks due to these differences.
One common theme is the exploration of their differences. Tony is a tech - savvy human, while Loki is a powerful Asgardian (sort of). Their different backgrounds lead to interesting interactions and conflicts.
One common theme is the 'opposites attract' concept. Loki, being a god from Asgard with his mischievous nature, and Tony, a brilliant human inventor. Their differences make for an interesting relationship.
Another theme is redemption. Loki, with his past misdeeds, often finds a form of redemption through his relationship with Tony. Tony, in turn, may also find a new purpose or a more softened side to his personality. It's about two broken or flawed characters making each other better. For example, in many fics, Loki's magic and Tony's technology combine in interesting ways to solve problems, symbolizing their union.
One common theme is the struggle with identity. Both Loki and Tony have complex identities, and in soulmate fanfics, they often have to reconcile who they are with being soulmates. For example, Loki's status as a trickster god and Tony's playboy - genius - billionaire - philanthropist persona can create conflicts and also opportunities for growth in their relationship.
The theme of acceptance is also prevalent. They come from different worlds, literally. Asgard and Earth have very different cultures and values. But as soulmates, they have to accept each other's differences. This can be seen in how they interact with each other's friends and families in the fanfictions. For instance, Tony introducing Loki to the Avengers and Loki introducing Tony to his Asgardian allies.
Romance is also a prevalent theme. The idea of an unlikely pairing between female Loki and Tony makes for a very interesting romantic dynamic. It's about two very different characters falling in love, often against all odds.
One common theme is the 'opposites attract' concept. Tony is a tech - savvy human, while Loki is a powerful Asgardian with magic. Their differences create a lot of tension and attraction at the same time. Another theme is redemption. Often Loki has a journey of redemption, and Tony is somehow involved in that journey.