One more theme is the exploration of different cultures, both alien and human. When they travel, they meet various beings with different ways of life. This gives the opportunity for the fanfiction to explore themes of acceptance, tolerance, and the beauty of diversity. For instance, they might visit a planet where the inhabitants communicate through colors and have to figure out how to interact with them.
Adventure is also a big theme. They go to different planets, time periods, and face all sorts of strange and dangerous situations. For example, in many fanfics, they might have to outwit an evil alien race or solve a mystery on a long - lost planet. Another theme is self - discovery. Donna, especially, often discovers new things about herself as she travels with the Doctor.
A popular one is 'The Travels of Donna Noble and the 11th Doctor'. This fanfiction focuses on the emotional bond between them. It details how Donna's presence affects the Doctor's decisions and how they rely on each other during difficult situations. There are some really heart - warming moments when Donna helps the Doctor understand human emotions better.
Another theme is friendship. He forms strong bonds with his companions, and fanfictions often explore these relationships further. They might show how the Doctor and his companion support each other through tough times.
A third common theme is the idea of sacrifice. River has already made sacrifices for the Doctor in the show, and in fanfiction, this can be expanded upon. Maybe the Doctor has to make a sacrifice for River this time. Or they both have to sacrifice something in order to save each other or the universe. It adds an extra layer of drama and depth to their relationship.
One common theme is discovery. The OC often discovers new things about the Doctor, his world, and the universe. Another theme is growth. Both the OC and sometimes the Doctor himself grow as characters through their interactions. For example, the OC might become more confident or learn about their own capabilities.
In 9th Doctor and Luna fanfiction, a prevalent theme is the clash of different worlds. The Doctor comes from a world of science and time - traveling, while Luna has her own magical - like world. Their interaction often involves bridging this gap. Another common theme is growth. Through their adventures together, both characters grow. The Doctor may become more in touch with his emotions, and Luna may gain more confidence. There is also the theme of protection, where they protect each other from the threats they encounter.
One common theme is the clash of two very different worlds. The Doctor's world of time travel and exploration versus the dark and often secretive world of vampires. It creates a lot of interesting conflict and opportunities for adventure.
Themes like friendship, sacrifice, and saving the world are frequent. Elements can include meeting characters from classic literature or having adventures in historical periods. The crossovers usually blend the unique traits of both the Doctor Who universe and the other crossed-over franchise.
Loss and sacrifice are common too. There are times when either the Doctor or Amy has to make sacrifices for the other or for the greater good. This adds depth to their relationship and makes for some really emotional and engaging fanfiction. Also, the idea of the Doctor being an alien and Amy being a human and how that affects their relationship is often explored.
Love and friendship are also prevalent themes. Sometimes it's a budding romantic love, where the reader and the doctor slowly fall for each other. Other times, it's a deep friendship that forms as they face various challenges together. And of course, there's the theme of self - discovery. The reader often discovers new aspects of themselves while traveling with the doctor.
Friendship is also very important. Their bond could be tested in the fanfiction. They might have a falling out over a difference in opinion, like whether to interfere in a particular event or not. But in the end, they realize how much they mean to each other and their friendship becomes even stronger.