In some miraculous ladybug bed fanfictions, a common plot is that an akuma attacks while Marinette is in bed. She has to quickly transform into Ladybug without being noticed by her parents. This creates a lot of tension and interesting scenarios. There could also be a fanfiction where Tikki and Plagg get into some sort of trouble while Marinette and Adrien are sleeping in their respective beds, and the kwamis have to solve the problem on their own without waking their holders.
One popular storyline could be Marinette having a dream about her future with Adrien while in her bed. In the fanfiction, she might see them getting married and living happily ever after. Another could be Chat Noir secretly visiting Ladybug while she's resting in bed and leaving her a small gift as a token of his affection without her knowing it was him right away.
In some fanfictions, there are storylines where new Miraculous holders from different parts of the world join the fight. These new characters bring in unique powers and cultures, adding more depth to the Miraculous universe. For example, a holder from an Asian country with a Miraculous related to an ancient mythical creature.
One interesting storyline could be an alternate universe where Marinette and Adrien have different Miraculous powers. For example, Marinette might get the Cat Miraculous and Adrien the Ladybug Miraculous. This would completely change their dynamic and how they fight against Hawkmoth.
In this fanfiction, Ladybug could be ill and in bed. Chat Noir, being the caring partner he is, tries to take care of her. He brings her soup (even though he's not very good at cooking) and tries to cheer her up. Ladybug, on the other hand, is a bit frustrated at being sick but is also touched by Chat Noir's efforts. They end up having a deep conversation about their feelings for each other, but still keep it within the boundaries of their superhero partnership.
One idea could be Ladybug and Chat Noir having a heart - to - heart conversation in bed after a particularly tough battle. They could share their fears and insecurities that they usually hide behind their superhero personas.
One possible storyline could be that Ladybug sacrifices herself to save Paris from an ultimate villain. Maybe the villain has created a weapon that can destroy the entire city, and Ladybug uses her powers to contain the blast at the cost of her own life. Her death would then lead to a city in mourning and Chat Noir having to step up in a whole new way, trying to keep Paris safe without his partner while also dealing with his grief.
One popular theme is the reveal of the identities of Ladybug and Chat Noir. Fans love to explore how their relationship would change once they know who each other really is.
One interesting storyline could be Marc and Nathaniel teaming up to create a new superhero comic within the Miraculous Ladybug universe. They might draw inspiration from the real - life superheroes they see around them in Paris. Another could be a story where they accidentally discover a new Miraculous. For example, while exploring an old attic, they find a hidden box with a strange, unknown Miraculous that has powers they've never seen before. And a third could be a story where they use their creativity to help Ladybug and Chat Noir in a different way, like creating a device that can detect Akumas from a distance using their art skills and knowledge of technology.
One interesting storyline could be Bunnix traveling back in time to prevent an akuma from ever being created. She could team up with Ladybug and Chat Noir in a different time period, leading to a whole new dynamic between the heroes.
Well, a common fanfiction idea is to give the characters new powers or challenges. Maybe Ladybug has to deal with a new type of akuma that nullifies her usual powers. Or Cat Noir has to face an enemy alone without Ladybug's help. Also, there are fanfictions that play with the idea of the characters' identities being revealed in unexpected ways, which then leads to a whole new set of problems and solutions for them.
Love triangles are also common. Usually involving Ladybug, Chat Noir, and another character. It adds a lot of drama and tension to the story. For example, some fanfics have a new superhero who falls in love with Ladybug, causing Chat Noir to be jealous.