One common theme is the exploration of different cultures. When Star Trek crosses over with other universes, there's a chance to compare and contrast the unique cultures from each. For example, if it crosses with a fantasy universe, the highly technological and logical Star Trek culture might be contrasted with a more magic - based and traditional culture.
Another theme is the idea of cooperation in the face of a greater threat. Often in these crossovers, the characters from Star Trek and the other universe have to work together. They might be facing a powerful enemy that neither could defeat alone. This theme shows the power of unity and how different beings can come together for a common good.
The exploration of new technologies is also a theme. When two different science - fiction universes meet, there are bound to be differences in technology. Writers often explore how the technologies from Star Trek, like the transporter or phasers, interact with the technologies from the other universe. It can lead to some really interesting story developments as characters figure out how to use or adapt to these new technologies.
One common theme is the exploration of different timelines. Since Star Trek has multiple timelines, crossovers often play with how the Enterprise crew would interact with those from other timelines. Another theme is the sharing of technology. For example, how the tech from the Enterprise could be combined or compared with that of other Trek entities in the crossover.
Exploration of new worlds and concepts is also a big theme. If 'Star Trek' crosses over with a different sci - fi series, they might jointly explore a new and strange planet or phenomenon. This allows for a lot of creativity in terms of what they discover and how they deal with it. It can be something as simple as a new form of energy or a complex new alien race.
One common theme is the clash of cultures. Star Wars has a more mystical and feudal - like society in some ways, while Star Trek is more about a united federation. When they cross over, exploring how these different cultures interact is a big theme.
One interesting story could be a crossover with 'Doctor Who'. Imagine the Doctor and the Star Trek crew teaming up to face a threat that spans different universes. Another could be a crossover with 'Star Wars', where the Federation and the Jedi have to collaborate. There are also crossovers that involve characters from different time periods within the Star Trek universe itself, like bringing in characters from the later series into the Original Series setting.
The theme of unity against a common threat is also quite prevalent. In many crossovers, whether it's with 'Firefly' or other science - fiction universes, the characters from DS9 and the other universe have to come together to face a powerful enemy. This often leads to the characters learning from each other, growing, and forming unexpected alliances. It's about how different beings can put aside their differences when survival is at stake.
His struggle with the ethical dilemmas of medical practice in space is also a common theme. Since he has to deal with different alien physiologies, he often faces tough decisions. In some fanfictions, this is shown through his internal monologues as he tries to figure out the best course of action.
A frequent theme is the exploration of different cultures. Since Star Trek is all about encountering diverse alien species, in 'Star Trek and Reader' fanfiction, the reader gets to experience and interact with these cultures. Also, there's the theme of self - discovery. The reader character may grow and learn about themselves while being part of the Star Trek universe, facing challenges and making choices that shape who they become.
Conflict, both internal and external, is also a frequent theme. It could be conflict between different species, or internal struggles within the crew. For example, moral dilemmas are often explored, like whether to interfere with the development of a primitive civilization or not. And of course, the theme of friendship and teamwork is also prevalent. The characters on the Andromeda rely on each other to overcome challenges.
One common theme is McCoy's friendship with Kirk and Spock. Many fanfictions explore how their relationships develop further in different scenarios. Another theme is McCoy's medical skills and how he uses them in challenging situations. For example, dealing with new alien diseases or treating injured crew members during dangerous missions.
Love and romance can be a theme too. Maybe a relationship with another crew member or someone from a different planet he meets during his travels. Additionally, there are themes related to his Russian heritage, like how it influences his thinking and actions on the ship.