The theme of adaptation is quite prevalent. Asriel has to adapt to different cultures, technologies, and ways of life in the crossovers. For instance, if he enters a cyberpunk - themed world, he has to get used to the high - tech environment and the different social structures. Another common theme is the exploration of good and evil. When he crosses over to a world like the Lord of the Rings, he has to decide which side he's on and how to fight against the forces of evil in that world. This exploration of moral concepts is an important part of many Asriel crossover fanfictions.
One common theme is friendship. Asriel often forms new friendships with characters from other franchises in crossover fanfics. Another is the exploration of new worlds, as he is usually taken out of his own game world.
Often, the theme of empowerment is present. Female Asriel is usually depicted as strong and capable in these fanfictions. For example, she might be the one to save the day in a dangerous situation. Also, the theme of family can be explored, especially in relation to her existing family in the original story and how it might be different for a female version.
One common theme is friendship. Their relationship is often shown as a very deep and meaningful friendship that withstands different trials. For example, they might face difficulties in the Underground together and their bond only gets stronger.
One common theme is friendship. Female Asriel Dreemurr often forms deep and meaningful friendships with other characters. Another theme is self - discovery. She might be on a journey to figure out who she really is. Adventure is also a common theme, like going on quests or exploring new places.
One common theme is the exploration of their friendship in a more in - depth way. Another is the 'what if' scenarios, like what if Chara didn't fall into the Underground in such a tragic way. Redemption arcs for Chara are also popular, showing how their relationship with Asriel could help them become a better 'person'.
One common theme is friendship. Their bond is often explored, like how they support and care for each other. For example, in many fanfictions, they are there for each other during tough times in the Underground.
Redemption is also a theme. Asriel has his own past to come to terms with, and Frisk can play a role in that. Their relationship can be a catalyst for his redemption journey. For instance, in some fanfictions, Frisk's kindness and belief in Asriel help him move forward from his past mistakes.
One common theme is redemption. Since Asriel has had a rather tragic past, many fanfics focus on him finding a way to redeem himself through his relationship with Toriel. For example, in some fanfics, he tries to make up for the wrongs he has done in the past by protecting the Underground in his own way, with Toriel's guidance.
Friendship is a very common theme. Since Chara and Asriel are so close in the original story, many fanfics explore the depth of their friendship, how they support each other and grow together.
I'm not very familiar with 'asriel butt fanfic' specifically, but in general, fanfic can have themes like friendship, adventure, or self - discovery. Maybe in this type of fanfic, there could be themes related to the character's growth or relationships within the story's context.