In this fanfiction, Loki might freeze Thor during a heated argument. Thor, not expecting such a betrayal from his brother, is frozen solid. Loki then takes control of Asgard, but quickly realizes he's in over his head. As he rules, the people of Asgard start to rebel. Meanwhile, Thor, in his frozen state, is slowly being affected by some dark magic. Loki, seeing the chaos he's caused and the danger to Thor, has to find a way to break the spell. He teams up with some unlikely allies like the dwarves who have knowledge of ice - breaking magic. Eventually, Loki manages to unfreeze Thor and they have to work together to restore peace in Asgard.
Well, perhaps Loki freezes Thor as part of a deal with an enemy. Thor is frozen and the enemy thinks they can now easily take over Asgard. But Loki has a hidden agenda. He freezes Thor not to harm him but to protect him from a more dangerous plot. Thor, while frozen, has visions or dreams that give him some new power or knowledge. When Loki finally unfreezes him, Thor is stronger and together they outwit the enemy and Loki's true loyalty is revealed to Thor, strengthening their bond.
The plot could involve Thor being led to Loki's tree by a vision. He arrives there and discovers that the tree has some sort of magic that is tied to Loki's past or future. Maybe it holds the key to saving Loki from a great danger.
Maybe Loki is betrayed by someone he thought was a friend, and he is deeply hurt both physically and mentally. Thor discovers what has happened. He becomes extremely protective. He first takes care of Loki's wounds, using his own knowledge of healing herbs. Then he sets out to find the one who betrayed Loki. Along the way, Thor makes sure Loki feels safe and loved, constantly reassuring him that he will always be there for him. This journey not only heals Loki's physical and mental wounds but also deepens their brotherly bond.
In this fanfiction, perhaps Thor hits Loki with Mjolnir as a form of punishment for one of Loki's many tricks. Maybe Loki has double - crossed Thor in a plan to take over Asgard, and Thor's only option to stop him is to use his powerful hammer.
One possible plotline could be that it's a magical accident. Maybe a spell gone wrong in Asgard causes this unexpected situation. Thor is initially shocked but then decides to be supportive. Loki, on the other hand, is more conflicted, dealing with his own emotions and how this will change his standing in Asgard.
Well, one possible plot could be that Thor and Loki's little sister has some special powers that are a mix of their own. She might be caught in the middle of their feuds, trying to bring peace between them. For example, she could use her powers to stop Loki from his mischievous plans that would anger Thor, while also making Thor understand Loki's motives better.
It could be that the marriage is part of a bigger plan to save the universe. The gods or some powerful entities have foreseen that only the union of Loki and Jane can bring about a certain balance. But Loki and Jane are initially unaware of this and have to figure it out as they navigate their new married life.
Well, a plot twist might be that Loki and Sif's marriage is part of a grander scheme by Odin. He wants to unite two powerful families in Asgard to face an upcoming threat. However, Loki and Sif don't know this at first. As they start their married life, they face many challenges together, like dealing with jealous courtiers. But as they uncover the truth about Odin's plan, they decide to embrace their roles and lead Asgard to safety.
One possible plot could be that Laufey, Loki's biological father, decides to use Loki against Thor. He might abuse Loki in some way, either physically or emotionally, to make Loki do his bidding, which could involve causing trouble for Thor. Loki, being in a difficult position, has to deal with his complex feelings for Thor while also trying to escape Laufey's control.
A plot development could be Loki forming an alliance with the Jotuns against a common enemy. This enemy could be a threat to both Jotunheim and Asgard. Loki, being in Jotunheim, has the opportunity to broker this alliance, which would surprise Thor and the other Asgardians when they find out.
Another plot twist could be that an ancient Asgardian law is revealed which states that Thor, as a prince, can't marry a mortal. This would lead to a lot of internal conflict for Thor, as he has to choose between his love for Jane and his duties to Asgard. Jane, on the other hand, might try to find a way to prove herself worthy or to change the law.