How does the interaction between a reader and AU Sanses and Gasters in fanfiction usually start?

Well, the reader might experience a whole new world of adventure. The Sanses from different AUs could have unique personalities and abilities. For example, an Underfell Sans might be more aggressive compared to a classic Sans. And the Gasters could bring in some mystery and scientific elements. The reader could get involved in their stories, help them solve problems or just be a witness to their daily 'lives' in the fanfiction world.

The reader might interact through dialogue. They could ask questions about the different AUs and the characters' backstories. For instance, asking Sans about his life in his particular AU.

Gaster is also very popular. His enigmatic nature, with so much of his backstory left to speculation in the original source material, gives fanfiction writers a lot of room to explore his character. Fans are often intrigued by his possible powers and his connection to the world of the sanses.

Some fanfictions in 'reader meets sanses and gasters' might have a plot where the reader has some sort of special power that catches the attention of the sanses and gasters. For example, the reader could have the power to manipulate time, and they have to work together with the characters to stop an evil force that is using time against them. This creates a lot of interesting interactions and challenges.

Yes, there are quite a few. You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). There you'll find a variety of stories with different plotlines. Some might focus on adventure where the fem reader goes on quests with the Sanses from different AUs. Others could be more about friendship or even budding romances in a very innocent and heart - warming way.

It depends on the type of fanfiction. If it's an action - oriented one, the reader could be in the middle of a battle between different AU Sanses and Gaster. They might have to choose sides or try to stop the fighting. In a more comical fanfiction, there could be a lot of humorous situations, like the Sanses making jokes at each other's expense while Gaster just shakes his head in the background.

One common theme is discovery. The fem reader often discovers the different AUs and the Sanses within them, which is like exploring new worlds. Another theme is friendship. They build relationships with the Sanses that range from friendly banter to deep, meaningful connections. And sometimes, there's a bit of mystery as the reader tries to figure out the rules and differences in each AU.

Adaptation is also a big theme. The fem reader has to adapt to the different and sometimes strange situations in the AUs. For example, in some AUs, the laws of physics might be different or the social norms are very distinct. And then there's the theme of self - discovery. Through her interactions with the sanses, the fem reader often learns more about herself, her strengths, and her weaknesses.

One popular 'human fem reader meets all au sanses' fanfiction is 'Multiverse Encounters'. It has an interesting plot where the female human reader is transported across different AUs and has various interactions with the sanses. The character development is quite good.

Papyrus - like sanses might be overly enthusiastic and always trying to get the reader involved in their wacky schemes. They would be very friendly and constantly offer the reader spaghetti or some other local delicacy. Meanwhile, the more brooding sanses could be a bit more standoffish at first. They might observe the reader from a distance before gradually warming up and sharing their deep thoughts with the reader.