Well, there's a fanfic where they prank Carlisle by making his office look like a disco. They put up disco balls, flashing lights and played really loud disco music. It was hilarious. Also, the prank where they switched Rosalie's beauty products for really cheap and smelly ones. Rosalie was so angry and her reaction was quite memorable.
One common theme is the element of surprise. Bella always tries to catch Emmett off - guard with her pranks. Another theme is the bond between them. Through the pranks, their relationship either gets stronger or there are some interesting developments in how they interact with each other.
There is a fanfiction titled 'Prankster Bella and Unassuming Emmett'. In this story, Bella devises creative pranks that constantly keep Emmett on his toes. It shows their relationship in a really fun and comical way. The author does a great job of building up the anticipation before each prank and Emmett's reactions are priceless.
There's a fanfiction titled 'Bella and Emmett's Pranktastic Adventures'. In this story, they team up to play pranks on the other Cullens. It's full of funny moments like when they switch Edward's books for ones with really cheesy love stories. They also prank Rosalie by putting pink glitter everywhere in her room. It's a light - hearted and enjoyable read.
In some fanfictions, they might be reimagined as siblings. However, in the original 'Twilight' series, they are not siblings. Fanfiction often takes creative liberties to explore different relationships between characters.
In these fanfictions, Emmett's dominance often shows in his protectiveness. He'll be very quick to step in front of Bella when there's danger. For example, if there's a threat from another vampire or some other supernatural force.
Well, Emmett's physical strength can also have an impact on Bella. In some stories, seeing Emmett's power makes Bella strive to become stronger herself. Maybe she starts training with him, and through this process, she not only becomes more physically capable but also gains more confidence. This new - found confidence then affects her relationships with other characters as well. Moreover, Emmett's jovial personality can bring out a lighter side of Bella. When she's around him, she might find herself laughing more and being less brooding, which is a big change from her usual self in the original story.
I'm not sure which specific fanfiction you're referring to. There could be many out there with this theme. You might want to check fanfiction websites like FanFiction.net or Archive of Our Own. They have a wide range of stories that could match this description.
Their relationship can be shown as a very protective one. Emmett, being the stronger one, might always be ready to shield Bella from any harm. For instance, if there are other characters who pose a threat, Emmett would step in front of Bella without hesitation.
Often, bella emmett fanfiction focuses on Emmett's physical strength and how that protects Bella in new and different ways. In some stories, he uses his strength not just to fight off enemies, but also to help Bella in more everyday situations like building things for her. And the fanfiction also tends to play up the contrast between Bella's more human vulnerability and Emmett's super - strength.