Well, you could imagine a time-travel adventure where Sirius and James get pulled into the Doctor Who universe and have to face off against some alien threats.
One possibility is a story where the Doctor helps Sirius and James uncover a magical mystery in the wizarding world of Harry Potter. Maybe it involves a long-lost magical artifact.
It could be a crossover fanfiction where characters from Doctor Who interact with those from Harry Potter, especially Sirius and James. Maybe they travel through time and space together or face some magical adventure.
You could imagine a scenario where Doctor Who and The Avengers team up to save the universe from a time-traveling threat. Maybe there's a villain manipulating timelines, and both teams need to combine their skills and knowledge to stop them.
You could have a story where Doctor Who travels to the magical world of Harry Potter and teams up with a powerful magician to solve a mysterious threat.
Well, you could have a story where Harry Potter travels through time and space with the Doctor to magical worlds and has adventures.
One common theme is legacy. Since James Sirius Potter is the son of Harry Potter, many fanfictions explore how he deals with the huge legacy left by his father. He has to live up to the Potter name and the expectations that come with it.
One great fanfiction is 'James Sirius Potter: The Next Generation'. It shows James' adventures at Hogwarts, and how he deals with the legacy of his father Harry Potter. The story has great character development and interesting plot twists.
One great 'Harry Potter James Sirius Potter' fanfiction is 'The Next Generation's Adventures'. It beautifully portrays James Sirius Potter's character, showing his courage and mischievous side similar to his father. It also has great interactions with other Next - Gen characters like Albus and Lily.
His father, Harry Potter, might also send a Howler. Harry knows the importance of discipline and responsibility, and if James was shirking his duties or not following the rules at Hogwarts, Harry would not hesitate to use a Howler to communicate his disappointment and expectations.
The connection between generations. We get to see how the son, James Sirius Potter, is influenced by his father Harry Potter. It's like seeing the continuation of the Potter story.
Another aspect is the new friendships and relationships. Fanfictions might introduce new characters who become friends or rivals with James Sirius Potter. These relationships can add new layers to the story. For instance, a story could have a character from a different magical culture befriend James, and through their friendship, we learn more about that culture.