What are the common themes in 'alien invasion fanfic'?

One common theme is the battle for survival. Humans have to fight against the technologically advanced aliens to save their planet. Another theme is the exploration of human nature. In the face of an alien invasion, people's true characters, like courage or cowardice, are revealed. Also, the concept of unity is often explored. People from different backgrounds must come together to resist the alien threat.

Well, a frequent theme is the idea of unity. People from different backgrounds have to come together to resist the alien threat. It shows that in extreme situations, we can overcome our differences. And there's the theme of hope. Even when the situation seems dire, there's always a glimmer of hope that the humans can defeat the invaders. This gives the story an optimistic touch.

Well, a usual theme is the disruption of society. Alien invasions shatter the normal order. We see chaos, breakdown of governments and economies. Another is the discovery of new technologies. Sometimes, humans reverse - engineer alien tech. And of course, there's the theme of hope. Despite the odds, there's always a glimmer of hope that humans can overcome the invasion.

Well, the idea of hope is a big theme. Despite the difficult situation of the alien blockade, the characters in the fanfics don't give up hope. They keep fighting and looking for solutions. Also, the theme of sacrifice is there. Some characters may sacrifice themselves for the greater good, for the sake of breaking the alien blockade or saving others.

One common theme is the exploration of the unknown. Since it involves an alien pregnancy, there's a lot of mystery about how the pregnancy will progress, what the alien offspring will be like, etc. Another theme is the isolation of the pregnant character. Often, they are alone in their situation, not fully understood by others.

The theme of acceptance is also quite common. As the alien performs on the stage, they gradually gain acceptance from the human audience or other performers. It can be a story of breaking barriers and building relationships between different species in the context of the stage environment.

One common theme is transformation. The obvious one is the physical transformation during the alien metamorphosis, which can be both fascinating and terrifying. Another theme is survival. Characters often have to struggle to survive in the face of the unknown changes brought by the metamorphosis. And there's also the theme of discovery, as they discover new abilities or aspects of themselves during the process.

Another theme is survival. Being abducted is a dangerous situation, and the characters usually have to fight for their lives. They may face threats from the aliens or the harsh conditions of the alien spacecraft. In some fics, the humans have to outwit the aliens to survive.

One common theme is the exploration of differences. Since it involves an alien, there are differences in biology, culture, and values. For example, how an alien might show affection could be very different from a human. Another theme is acceptance. The characters usually have to accept each other's uniqueness to build an intimate relationship.

I think 'Independence Day' is also very popular. The idea of a global coordinated effort to fight off the aliens is really exciting. And the huge alien ships hovering over major cities is a very memorable image from both the movie and the novel. Additionally, 'The Invasion of the Body Snatchers' has a certain popularity because of its creepy concept of the aliens taking over humans without them even realizing it at first.