Maybe it could be a story where Hermione is cold and Fred offers his clothes. Then it becomes a cute moment that leads to a deeper friendship or some unspoken feelings between them.
One reason could be that they are in a situation where they need to disguise Hermione as Fred for some sort of mission. So she has to wear his clothes to blend in. Another possibility is that it's a symbol of their closeness. After a particular adventure where Fred saved Hermione, she wears his clothes as a sign of gratitude and a growing bond between them.
One interesting scenario could be that Hermione wears Harry's clothes during a secret mission. It might add an element of disguise and also show a new level of closeness between them. Maybe she has to quickly put on his clothes to blend in with a group that is expecting Harry.
Another reaction could be confusion. Draco might not know how to feel. On one hand, he has his Slytherin pride and his clothes are part of that. But on the other hand, seeing Hermione in his clothes gives him a strange feeling in his stomach. He might end up being more curious about Hermione and her reasons for wearing his clothes.
One possible reason could be a sign of her support for Fred in his Quidditch endeavors. Wearing his jersey is like showing team spirit. Maybe she has developed a closer bond with Fred and wants to publicly display her friendship or admiration.
Hermione's relationships with others could change. For example, she might face different reactions from Ron and Harry. Ron could be jealous or confused, while Harry might be more accepting. This would force Hermione to navigate her friendships in new ways, thus developing her character further. Also, her relationship with Fred would likely evolve, whether it's just a closer friendship or something more romantic. She would have to learn to deal with the new dynamics that come with wearing his jersey and being associated with him in this way.
Fred could use his knowledge of the Weasley family's magic tricks and inventions. He might have some secret gadget or spell that can break through the barriers or spells that are being used to torture Hermione.
Yes, there might be fanfictions out there with this concept. Fanfiction writers often come up with creative and unexpected pairings. However, this is a rather unusual pairing considering Hermione is typically associated with Ron in the original 'Harry Potter' series. You can try searching on major fanfiction websites like Fanfiction.net or Archive of Our Own. Just type in relevant keywords to find stories based on this idea.
One possible fanfiction could be where Fred and Hermione discover their Animagus forms together. Maybe they transform in the Forbidden Forest and have to rely on each other to get back to Hogwarts safely. Their forms could be something that represents their personalities, like Fred could be a fox, known for its cleverness and playfulness, and Hermione could be an owl, symbolizing wisdom.
Maybe it's a dare. His friends could have dared him to wear Tony's clothes for a day and he reluctantly agrees. And as he wears them, he realizes there's more to Tony's style than he thought.