Perhaps Rapunzel and Flynn find a mysterious old book that tells the story of a long - lost power. They then embark on a journey to discover if this power is real and, if so, how to use it for the good of their kingdom. Along the way, they face challenges like dangerous traps and a rival who also wants the power for himself.
One idea could be them going on a new adventure outside of Corona. Maybe they discover a hidden land full of magical creatures that they have to protect together. Another could be Flynn teaching Rapunzel some self - defense skills in a more comical way. For example, he tries to show her how to use a sword but she ends up using it like a gardening tool at first.
A fanfic about Flynn teaching Rapunzel how to be a better horse rider could be interesting. It would be a cute and light - hearted story, with Flynn showing his more patient side as he helps Rapunzel overcome her initial fears of riding. There could be some funny moments like Rapunzel naming the horse something really silly and Flynn having to pretend he likes it.
Another scenario could be a kiss that seals a promise. Flynn has made a vow to Rapunzel, perhaps to always protect her and be by her side. As he makes this promise, they kiss, and it's not just a kiss of love but also of trust and loyalty. It symbolizes the deepening of their relationship beyond the physical attraction.
There could also be a more humorous storyline. The baby might be teething and keep chewing on everything in the castle, including Flynn's boots. Rapunzel tries different remedies to soothe the baby's gums while Flynn tries to keep the baby out of trouble. And as the baby grows, it starts to imitate Flynn's swashbuckling moves, which is both cute and a bit dangerous.
One possible plot could be that Rapunzel and Flynn discover she's pregnant. They might then face challenges like preparing for a new life while also dealing with the responsibilities in their kingdom. Flynn would be protective, and Rapunzel might be excited yet nervous about motherhood.
Another plot could be that Rapunzel is kidnapped by a mysterious figure from her past that she doesn't remember. As she's held captive, she starts to have flashbacks of her early childhood and discovers secrets about her family. Meanwhile, Flynn Rider and the others are on a frantic search for her, and Rapunzel has to find a way to signal them while also dealing with the revelations about her past.
Perhaps they get into an argument over a decision regarding the safety of the kingdom. Cassandra wants to take a more aggressive approach while Rapunzel wants a peaceful solution. They then have to find a way to reconcile their differences and work together again. This could involve them both learning from each other's perspectives.
One idea could be that Naruto is on a mission in a strange land and stumbles upon Rapunzel's tower. He helps her escape from Mother Gothel, and in return, Rapunzel uses her hair to help Naruto in his ninja battles. Another could be that they both get transported to a third, unknown world and have to rely on each other's unique skills to survive and find their way back home.
A male Rapunzel could also be part of a story where his long hair has magical properties. Instead of the traditional healing magic often associated with Rapunzel's hair in the original story, his hair might have the power to control the elements. For example, he can summon wind to keep unwanted visitors away from his tower or use water to create a protective barrier. A group of friends might come across his tower, and together they figure out how to use his hair's powers for the greater good and to finally free him from his captivity.
Another plot could be a 'what if' scenario where Mother Gothel had a change of heart. Perhaps after years of having Rapunzel around, she starts to develop real maternal feelings. She could then struggle with her desire for eternal youth and her new - found love for Rapunzel. This would put her in a difficult position of having to choose between her own self - interest and Rapunzel's well - being.