What are the common themes in gaster sans x reader fanfiction?

One common theme is mystery. Since both Gaster and Sans have mysterious backstories in the original game, fanfictions often explore and expand on these mysteries, especially in relation to their relationship.

Well, a major theme is the exploration of the unknown. Gaster's nature and his past are often shrouded in mystery in the original source, so in fanfiction, the reader and Gaster might embark on a journey to discover things together. Also, the theme of redemption can be present. Gaster may have some past mistakes or regrets, and the relationship with the reader could be a part of his path to redemption. Additionally, there can be a theme of power imbalance at times, as Gaster might have more knowledge or power, and how the reader deals with that in the relationship is explored.

One common theme is mystery. Gaster is often a mysterious character in the original source, and fanfics usually keep that element. They explore how the reader tries to understand Gaster.

The theme of friendship also exists. Before the romantic feelings develop, there's usually a stage of building friendship through dancing. They learn about each other's likes and dislikes while sharing their passion for dance. And of course, the theme of dance itself. The fanfictions often describe different dance styles, the beauty of movement, and how dance can bring people together, like how it brings Sans and the reader together.

A common theme is hope. Sans often represents a glimmer of hope for the reader. He shows that there are people (or in this case, a skeleton) who care and can help them through tough times.

One common theme could be the challenges of unexpected pregnancy. Since it involves a unique pairing like'reader x sans', there might also be themes of how different species or beings handle pregnancy. Another theme could be the relationship development between the reader and sans during this life - changing event.

One common theme could be the exploration of their relationship in the context of the outertale universe. It might involve how they interact with the unique settings and other characters in that AU.

In 'aftertale sans x reader pregnant fanfiction', a frequent theme is the relationship dynamics shift. With the pregnancy, there are new emotions and responsibilities. There might be themes of sacrifice too, as Sans and the reader may have to sacrifice some of their own wants for the sake of the baby. Also, the theme of community support can be present, as other characters in the aftertale universe may come to help or offer advice during the pregnancy.

One common theme is loyalty. They are both important figures in the monster world, and stories often explore how loyal they are to each other and to their respective causes.

Often, themes of friendship or rivalry might be present. They might start off as rivals but then develop an understanding or even a friendship. Another theme could be the contrast between their personalities. Lust Sans is known for his more flirty nature while Fell Sans has a more aggressive side, and how these play out in their relationship is a popular theme. Also, in some fanfictions, they might team up to face a common enemy or situation, which is also a recurring idea.