In 'thor cheats on loki fanfiction', there are several themes that might emerge. The theme of heartbreak is likely, as Loki would surely be heartbroken if he discovers Thor's infidelity. There could also be a theme of power dynamics. If Thor's cheating is related to someone with a certain power or status, it could change the power dynamics in his relationship with Loki. And of course, the theme of forgiveness might come into play if Loki decides to forgive Thor in the end.
One common theme is family. Their brotherly bond, whether it's strained or strong, is often explored. Another theme is redemption, especially for Loki as he has made many mistakes. Also, power and how they both deal with it, Thor with his more straightforward use and Loki with his more cunning approach, is a frequent theme.
I'm not aware of specific 'thor cheats on loki fanfiction' stories off - hand. You could try searching on fanfiction - specific websites like Archive of Our Own. They have a large collection of fan - created works and you might be able to find relevant stories there.
One possible plot could be that Tony, due to some external pressure or misunderstanding, gets involved with another character while in a relationship with Loki. Maybe he's forced into a political alliance that looks like cheating to Loki. Another could be that Tony's self - destructive tendencies lead him to make a mistake and cheat, causing a rift in their relationship that they then have to struggle to repair.
A very frequent theme is the comical aspect. The contrast between Thor's seriousness and baby Loki's mischievousness leads to many humorous situations. For instance, baby Loki might steal Thor's food or use his limited magic to play tricks on Thor, like changing his hair color.
Another theme is the exploration of their deep - seated feelings for each other. Fanfictions often dig into the complex emotions that Thor and Loki have had for each other throughout their history in the original mythology and how those emotions develop into love in the context of marriage.
One common theme is redemption. Loki often has a lot to atone for, and Thor's comfort can be a step towards his redemption. For example, in many fics, Thor's acceptance of Loki despite his wrongdoings starts Loki on a path of self - improvement.
One common theme is the clash of cultures. Hermione comes from the wizarding world, while Thor and Loki are from Asgard. This often leads to interesting situations as they try to understand each other's ways.
The theme of family loyalty often shows up. Thor feels it's his duty to protect Loki because they are family. Also, the power dynamics in Asgard can be a theme. Thor's overprotectiveness can be influenced by his position of power and his need to keep Loki, who is sometimes seen as a bit of a wild card, in check.
The theme of power and responsibility also pops up. With Thor being the more responsible and power - holding one, and Loki being the more mischievous and power - hungry at times, fanfictions play around with how they balance these aspects in their relationship. For instance, there are stories where Loki has to learn to handle power from Thor in order to protect Asgard.
One common theme is the exploration of Loki's identity. When Loki is female, fanfic writers often delve deeper into how this change might affect her relationship with Thor. For instance, she may struggle with being accepted in a male - dominated Asgardian society, and Thor could be her ally in this struggle.