In the fanfic, the parents might have a secret musical talent that they pass on to the chipmunks. It could be a talent that was hidden until a certain event in the story. Maybe they use this talent to overcome a big threat to their family. This would add an interesting layer to the story of the chipmunks' family.
One idea is that their parents could be on a quest to save their forest home. And along the way, they learn important lessons about friendship and family. This could later be the values they teach to Alvin and his brothers.
The fanfic could show the parents' relationship with other animals in the forest. They could be the ones who first made peace treaties with other species. This would set an example for Alvin and his brothers to be friendly and helpful to others. It could also involve some fun adventures where they team up with other animals to solve problems in the forest.
Well, it could be a heartwarming story. Maybe it would show how their parents met. Their parents might have had adventures of their own before having the chipmunks. It could also explore the family values they passed on to Alvin and his brothers.
One idea could be to write a fanfic where the chipmunks go on a magical adventure in a new, enchanted forest. They could discover new friends and face challenges together.
In a fanfic where Alvin is in prison in the 'Alvin and the Chipmunks' universe, it could be a really interesting take on his character. He might face challenges from other inmates who don't like his upbeat and sometimes mischievous nature. However, Alvin could also bring some positive change to the prison, like starting a music group among the inmates to pass the time and boost morale.
One idea could be a crossover with the Smurfs. Alvin and the Chipmunks could accidentally wander into the Smurf village while on an adventure in the forest. They might initially be seen as strange little creatures by the Smurfs, but then they team up to save the village from Gargamel who has a new plan that involves using the Chipmunks' musical talents to lure the Smurfs.
One idea could be Simon getting lost in a magical library and having to use his intelligence to find his way out while also uncovering secrets about the Chipmunks' past. Another could be Simon falling in love with a new character who challenges his intellectual side and makes him see things in a different way. Or perhaps Simon having to save the day when Alvin and Theodore get into a really big mess by using his scientific knowledge.
One idea could be a story where the Chipmunks become human for a day and experience high school. They could struggle with typical teenage problems like fitting in and dealing with bullies.
One possible reason for Alvin's depression in a fanfic could be the pressure of constantly being in the spotlight. As the lead chipmunk, he always has to be on top of his game, whether it's performing or coming up with new ideas. This unending stress might lead him to feel down. For example, in a big concert coming up, he might feel like he's not good enough and start to doubt himself, which could be a start of his depressive state.
Perhaps in the fanfic, Simon's glasses are enchanted. One day, they start to glow and lead the chipmunks to a hidden library in the forest. Inside the library are ancient texts that only Simon can read with his glasses. The chipmunks then have to protect the library from a group of raccoons who want to destroy it.
Another idea is the Chipmunks going on a camping trip. They might encounter different animals in the forest, learn survival skills, and have some comical moments around the campfire. This type of story showcases their friendship and their ability to adapt to new situations in a positive way.
One plot idea could be that the sister chipmunk joins the boys on a musical tour and has to overcome stage fright. Another could be a story where she discovers a hidden talent for songwriting that helps the group create a new hit album. Maybe she gets lost in a big city during a promotional event and has an adventure while the boys are searching for her.