Love triangles are also quite common. The OC is usually caught in the middle between Thor and Loki, creating a complex web of emotions and relationships. This adds a lot of drama and tension to the story, as the OC has to navigate her feelings for both characters. It can lead to some really interesting character development and plot twists.
The theme of self - discovery for the OC is often present. Being in the world of Thor and Loki, the OC has to figure out who she is, what her place is in this new and often dangerous world. She might discover new powers, new loyalties, and new aspects of her personality as she gets involved with Thor and Loki.
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.
The theme of redemption also appears often. Loki, in particular, is a character who often has a journey of redemption in these stories. The reader can play a part in his journey, either by believing in him or by helping him see the error of his ways. And Thor may also have to come to terms with Loki's changing nature as the relationship with the reader progresses.
Love and redemption are also common themes. The OC might be a character with a troubled past, and Thor helps them find redemption. At the same time, they fall in love. It's a classic trope that gives an emotional depth to the relationship between the two characters. This can be seen in many 'Thor x OC fanfiction' where the OC has to overcome some personal demons with Thor's support.
Often, there's a theme of family and legacy. The baby could be seen as a new hope or a potential change for the future of Asgard or their family. And the whole situation might force Thor and Loki to re - evaluate their places in their family and the world. It's also common to see themes of sacrifice and love, as they face difficulties together due to Loki's pregnancy and they have to make choices to protect each other and the unborn child.
One common theme could be redemption. After experiencing abuse, Loki might be on a journey to redeem himself or find a way to heal. Another theme could be power dynamics. The abuse might be related to power imbalances between Loki and Thor, which can be explored in different ways. And also, the theme of forgiveness could play a role, either Loki seeking forgiveness from Thor or vice versa.
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.
One common theme is the exploration of their complex relationship. Given their different personalities in the original lore, fanfictions often delve into how a female Loki would interact with Thor on a more personal level, like a love - hate relationship.
One common theme is friendship. Often, the male OC and Thor start as acquaintances and develop a strong bond of friendship over time, facing various challenges together.
One common theme is the exploration of the relationship between Thor and Loki in a very different and often more intimate context due to the mpreg aspect. It might involve themes of protection, as Thor would likely be very protective of Loki during the pregnancy.
One common theme is the exploration of their family dynamic. Since they are siblings in the original lore, fanfics often play with this relationship and how it changes when there are romantic feelings involved. For example, how they deal with the potential taboo of their relationship within the context of Asgardian society.