Perhaps they were separated at birth due to some family feud or difficult circumstances. In the fanfiction, as they start to realize they are twins, they face opposition from some of their friends or family members who are not happy about this newfound relationship. However, they persevere and use their musical talents to bring the two sides together.
Another interesting plot could be that they both have different dreams and aspirations in the world of music. As twins, they start to learn from each other and help each other grow. For example, Santana might be more into edgy and modern music while Rachel is more into classic Broadway. They combine their styles and create a whole new sound for the Glee club, which takes them to new heights in competitions.
One plot idea could be that Rachel and Will collaborate on a very unique musical production. They face challenges like budget cuts and a lack of student interest at first. But through their combined efforts and Rachel's determination and Will's teaching skills, they manage to turn it around and create a show that wows everyone.
In a fanfiction, Rachel and Santana could become friends after being paired for a project that has nothing to do with glee club. Maybe they have to work on a community service project. At first, they bicker constantly, but as they face challenges like dealing with difficult people in the community or coming up with creative solutions to problems, they start to respect each other. This newfound respect turns into a real friendship that surprises everyone around them.
A possible plot is that the pregnancy is a surprise to everyone in the Glee club. Her friends rally around her, some being overly protective while others give her tough love. Rachel could also struggle with the idea of motherhood because she's always been so focused on her own stardom. She might start writing songs about her pregnancy experience, which then become a big hit within the Glee club and even outside.
The lemon could be a symbol of purity. In fanfiction about Rachel and Santana, it might represent a new beginning in their relationship. Maybe they've had a rocky past, and the lemon is like a fresh start.
The relationship with Mr. Schuester would also be interesting. He could use their newfound connection as a way to boost the morale of the club. He might create special duets or group numbers for them. And the twins could inspire other members to look deeper into their own relationships within the club. Maybe there would be more unity as a result of their discovery.
A really cool idea for a fanfiction could be that Rachel and Finn swap personalities for a day. Finn suddenly becomes super - focused on his Broadway dreams like Rachel, and Rachel has to deal with Finn's more laid - back attitude towards things. It would be a humorous and also a great way to explore their relationship from a different perspective.
I really like 'Rachel and Santana: A New Harmony'. In this fanfiction, they team up for a singing project outside of Glee club. It shows their growth as individuals and how they support each other in achieving their musical dreams. It's a heartwarming read with a lot of character development.
Rachel and Santana's friendship in fanfiction could involve them collaborating on songwriting. They each bring their unique styles, Rachel's more Broadway - inspired and Santana's with a sassy edge. They write a song that combines both elements and it becomes a hit within the glee club. This shared success cements their friendship as they realize how well they work together.
Rivalry - turned - friendship is also a big theme. In the series, they were often rivals, especially when it came to solos and leading roles. Fanfictions like to play with this dynamic, showing how they gradually overcome their rivalry and develop a deep bond. Sometimes, they might start as fierce competitors but end up realizing they have more in common than they thought and become best friends or even more in some stories.
One possible fanfiction could be about Santana's journey through pregnancy while still being part of the Glee club. Maybe she has to deal with the reactions of her friends and family. Some might be overjoyed, while others could be worried about how it will affect her singing and her place in the club.