I'm not very familiar with 'drunk bunny x sans fanfic', but perhaps friendship could be a common theme. They might explore how these two characters interact in an unexpected or comical way.
The relationship could start as one of curiosity. Sans is curious about the drunk bunny's behavior. As time passes, it might turn into a friendship. Sans would be the more stable and reliable one, while the drunk bunny brings chaos and unpredictability. They could complement each other well.
I'm not sure about specific 'drunk bunny x sans fanfic'. You can try searching on fanfiction platforms like Archive of Our Own. They usually have a wide range of fan - created stories.
Nature is a prevalent theme as well. Since bunnies are part of the natural world, fanfics may describe beautiful meadows, forests, and streams that the bunnies inhabit. They might show how the bunnies interact with the natural elements around them, like enjoying the sunshine or hiding from the rain under a big leaf.
One common theme is friendship. Just like in the original Naruto series, the bond between characters, even if one is a bunny - like being, is often explored. For example, a bunny character might form a strong friendship with Naruto or other ninjas.
One common theme is cuteness. Since Jungkook is depicted as a bunny, there are a lot of adorable moments, like him nibbling on carrots or hopping around playfully.
Nature is a common theme. Since bunnies are associated with the outdoors, many fanfics set in England will feature beautiful English landscapes like meadows and forests. Another theme is friendship. The bunnies often form strong bonds with each other or with other animals in the English wildlife.
A common theme is often the exploration of relationships. For example, when Harry is drunk, it can show a different side of his friendships. His friends might have to take care of him, and this can strengthen or test their bonds. Also, in some fanfics, there could be a romantic angle. Maybe Harry gets drunk and confesses his feelings to someone he has a crush on, like Ginny or Hermione (in non - canon pairings). It's all about how being drunk affects his interactions with others.
One common theme is the struggle between good and evil, as Dream Sans is often associated with positive aspects and Nightmare Sans with negative ones. Their relationship in fanfics can explore how they deal with their opposing natures.
One common theme is friendship. Despite their differences from different AU's, they often form a unique bond.
Maybe the drunk bunny is a lost soul in a strange dimension. Sans discovers the bunny and takes it under his wing. The fanfiction could then explore their relationship as the bunny sobers up gradually. For example, they could start to bond over shared experiences or interests. The bunny might also introduce Sans to some new things from its own world, creating an interesting cultural exchange within the story.