It could be that Loki is in emotional pain due to being rejected by Asgard again. He's alone and suffering. The Avengers, especially those like Black Widow who understand the pain of being an outcast, reach out to him. They discover that an old enemy is planning to use Loki's vulnerable state to launch an attack on both Asgard and Earth. So they have to protect Loki and stop the enemy at the same time.
In a 'gabriel is loki avengers fanfiction', the plot could start with Gabriel being mysteriously drawn to Loki's presence. He could be an angel - like being who is intrigued by Loki's mischievous nature. The Avengers, on the other hand, see Gabriel as a potential threat because of his association with Loki. As the story progresses, Gabriel could try to prove his good intentions to the Avengers while also trying to figure out Loki's true intentions. There could be a lot of internal struggle within Gabriel as he battles between his loyalty to Loki (if there is some pre - existing bond) and his desire to do what's right for the world. This could lead to a complex web of relationships and a story full of twists and turns as Gabriel tries to navigate the world of the Avengers and Loki.
In the 'Avengers and Loki Christmas fanfiction', it could be that an ancient Christmas - themed evil force is awakened. The Avengers are initially baffled on how to deal with it as it uses Christmas magic in a malicious way. Loki, having knowledge of both magic and trickery, offers his help. Together, they go on a journey to find the source of this evil. Along the way, Loki and the Avengers have many arguments and moments of understanding. By Christmas Eve, they manage to defeat the evil force, and Loki stays with the Avengers to celebrate a well - earned Christmas, having become a sort of honorary Avenger for the time being.
If Loki is in physical pain from an injury, the Avengers' resident doctor, Bruce Banner (when he's not the Hulk), could try to heal him. He might use his scientific knowledge combined with some Asgardian magic if Thor can provide it.
Well, perhaps the Avengers initially suspect Loki's daughter of some mischief like her father. But as they get to know her, they find out she's actually trying to make amends for Loki's wrongdoings. She could have some unique powers that both intrigue and worry the Avengers.
One possible plot could be that the Avengers initially see Loki's children as threats. They might prepare for battle, but then discover that the children are not as evil as they expected. For example, they could be in search of a new home away from Asgard's politics and the Avengers end up helping them.
Well, Loki could cause all sorts of chaos. He might try to undermine the Avengers from within. For example, he could pretend to be Iron Man and give false orders to the team, leading them into dangerous situations. Or he could pose as Captain America and spread doubt among the Avengers about their mission and each other.
One possible reason could be Loki's sense of isolation. In many Avengers fanfictions, Loki is often portrayed as an outsider. He may cry out of loneliness, feeling that he doesn't truly belong anywhere, not even among his own kind. Another reason might be regret. Loki has done a lot of wrongdoings in the stories, and he could be crying over the consequences of his actions, like the harm he has caused to Thor or the people of Asgard.
In this fanfiction, Loki might finally start to see the good in the Avengers. He could be forced to team up with them against a common enemy, perhaps an even greater threat from another realm. This situation would put Loki in a position where he has to rely on the Avengers, leading to some interesting character dynamics and potential for growth for his character.
In this fanfiction, Loki might start to learn about teamwork. He could form unexpected friendships with the Avengers. For example, he might bond with Thor over their shared past in a new way, now that they are both part of the Avengers group. He could also use his trickery skills to help the Avengers in their battles against other villains.
A more complex plot could be Loki impersonating Black Widow. He infiltrates the more covert operations of the Avengers. While in her form, he could plant false intelligence, leading the Avengers into dangerous situations. He could also use her relationships with the other members, like Hawkeye, to create emotional turmoil within the team, all while trying to achieve his own goals of taking over the world or getting his hands on powerful magic items.