One idea could be Mal and Chad going on an adventure in a magical forest. They could encounter strange creatures and have to work together to find their way out. Another idea is a story where they attend a ball together and have a romantic dance. They might also get into some comical misunderstandings at the ball.
Well, a good Mal and Chad fanfiction could involve them in a mystery-solving plot. Maybe there's a series of strange events happening in Auradon, and they are the ones who figure out what's going on. They could start as rivals, thinking each other is behind the mystery, but then realize they need to team up. This would involve a lot of character development and interaction between them.
A possible Mal and Chad fanfiction could be set in an alternate universe. In this universe, Mal is not a villain but a regular girl, and Chad is a prince from a different kingdom. They meet by chance during a trade fair. Chad is initially put off by Mal's boldness, but as they get to know each other, they start to fall in love. Their relationship could face challenges from their different backgrounds and the expectations of their kingdoms.
A cool fanfiction could be Mal and Ben swapping powers for a day. This would lead to all sorts of comical and also challenging situations. For instance, Mal would have to deal with the responsibilities of being a king - like making important decisions in court - while having Ben's more 'goody - two - shoes' power. And Ben would be on the Isle of the Lost, trying to use Mal's magic in a place where it's not always welcome. Or a story where they go on a secret adventure away from Auradon, just the two of them, and discover a hidden land that has its own set of rules and magic, and they have to adapt quickly to survive.
You could write a fanfiction where Ben and Mal get transported to an alternate dimension. In this dimension, their roles are reversed. Mal is the one in charge of Auradon and Ben is from the Isle of the Lost. They have to figure out how to get back to their own world while also learning about each other in this new dynamic.
One interesting idea could be Mal's unique powers evolving in a different way under Hades' influence. For example, her magic might take on a darker or more underworld - themed aspect.
There may be a 'mal and chad graphic novel' series that focuses on their friendship in a post - apocalyptic setting. They could be scavenging for resources and protecting each other from other survivors or mutant creatures. The graphic novel would then show their growth as individuals and as friends through these difficult situations.
One idea could be Mal having to face a new, powerful villain from a forgotten part of the isles. This villain could be threatening to take over all the territories Mal has united. Another could be Mal going on a journey to discover more about her family's past and unearthing secrets that change her perception of herself and her role as queen.
One plot idea could be Mal struggling to fit into the Underworld society that Hades rules. Since she's from a different world in Descendants, adapting to the dark and often chaotic nature of the Underworld could be full of challenges and interesting character developments.
Perhaps Mal starts a school on the Isle, similar to Auradon Prep but with a more villain - friendly curriculum. This could lead to all kinds of interesting interactions between the students and Mal as she tries to shape the future of the Isle.
Maybe they could have a date night that goes wrong at first. For example, they plan a picnic but it starts to rain. However, instead of getting disappointed, they find a cozy cave and have an even more romantic time there, sharing stories and getting closer. It could also be interesting if they get into an argument over something like Carlos' fear of dogs resurfacing when they encounter a stray puppy, and how they work through it to strengthen their bond.
Another idea is that they both get lost in a mysterious part of Auradon that has been long forgotten. They have to work together to find their way back. Along the way, they discover secrets about Auradon's past that could change the way they view the place and their place in it. This journey would also strengthen their bond as they depend on each other for survival.
Perhaps a plot where Mal and Carlos discover a hidden part of Auradon that has a connection to their pasts on the Isle of the Lost. They have to keep it a secret from everyone else in Auradon while they explore it together. Along the way, they face challenges that test their loyalty to each other and to Auradon.