Well, if we're talking about a 'pepa and silvia first time fanfiction', it might be important to consider the context within which this 'first time' is set. Is it their first time meeting, first time working together, or something more romantic? Without reading it, it's hard to say for sure. But often, a good fanfiction in this case would build up tension and anticipation before getting to the 'first time' moment, whatever that may be.
They might be really surprised. Some characters could be flattered by the positive portrayals in the fanfiction. For example, Mirabel might be happy to see different interpretations of her story and how she's seen as a hero in some fics.
Encanto is about a magical family living in a hidden place in Colombia. Each family member has a unique gift, but the main character, Mirabel, doesn't have one. The story follows her as she tries to save the magic of their home.
Encanto is an original story. Disney's team of writers and animators came up with the concept and brought it to life on the big screen. It's not a adaptation or retelling of another story.
Indeed, Encanto is based on a story. The creators combined different imaginative concepts to bring this story to life, featuring themes of love, unity, and self-discovery within a magical setting.
One interesting Pepa and Silvia fanfiction could be about their adventures in a magical forest. Maybe they discover a hidden realm and have to solve puzzles to get out.