One common theme is the clash of different worlds. Since a T Rex is from a very different concept compared to the RWBY universe, stories often explore how the two coexist or conflict. For example, in many fanfics, the T Rex's primitive nature contrasts with the more advanced society in RWBY.
Survival is also a big theme. The T Rex has to survive in a new and often hostile environment full of Grimm. And the RWBY characters also have to survive the unexpected threat that the T Rex poses. In some fanfictions, they end up having to rely on each other to survive.
Another theme is the idea of adaptation. The T Rex has to adapt to the rules, culture, and combat styles of the RWBY world. Meanwhile, the RWBY characters have to adapt to having such a large and dangerous prehistoric creature around. Some fanfics show this process of adaptation in great detail, with characters learning from each other in unexpected ways.
The theme of adaptation could also be present. How does a T - Rex adapt to a relationship that involves more than just basic survival instincts? In the context of lemon fanfiction, this could mean adapting to emotional and physical closeness with another being. This might involve the T - Rex learning new behaviors or ways of interacting that are foreign to its normal existence in the wild.
Survival is a common theme. Since a T - rex is a large and dangerous predator, the human character often has to find ways to survive in the presence of the T - rex.
Well, often there is a theme of discovery. The human discovers the world of the T rex and vice versa. There might also be a theme of protection, where the T rex protects the human or the human tries to protect the T rex from harm. And sometimes there's a bit of a love - against - all - odds theme, where their different species don't stop them from having some sort of emotional connection.
In these fanfictions, the theme of discovery is quite prominent. The character discovers their ability to become a T - Rex Animagus, which then leads to a whole new set of experiences. There's also the theme of adaptation. The wizard or witch has to adapt to the physical and instinctual aspects of the T - Rex. For instance, they might have to deal with the T - Rex's natural hunting instincts while still maintaining their human morality. Additionally, many stories explore how this form impacts the character's place in the wizarding society, whether it gives them new power, new responsibilities, or new enemies.
One common theme is loyalty. Rex is known for his loyalty in the original series, and fanfictions often explore his loyalty to his brothers, to the Republic, and to what he believes in.
One great RWBY T Rex fanfiction is 'The T Rex in Remnant' on FanFiction.net. It has an interesting plot where a T Rex somehow gets transported to the RWBY universe and forms an unlikely alliance with Team RWBY. The story is full of action and adventure as they face Grimm together.
Another theme is the solving of a mystery that Rex is either a part of or is somehow related to. This could be a mystery about a lost civilization or a strange phenomenon that only Rex can help solve. For example, in some fanfictions, Rex has a connection to an ancient artifact that holds the key to solving a big mystery. This creates a lot of suspense and adventure in the story.
One common theme could be family. The idea of Rex and Ahsoka starting a family and raising a baby brings in elements of love, protection, and new beginnings. Another theme might be the challenges they face, like how their Jedi and Clone Trooper backgrounds might affect their parenting.
One common theme is adventure. The OC often joins Rex on his various missions, facing challenges together. Another theme is romance. Since it's rex x oc, there's usually a love story developing between them. It could be a slow - burn romance or a more immediate attraction.
One common theme is culture shock. For example, when Rex is thrust into a different fictional universe like Middle - earth from The Lord of the Rings, he has to deal with the different cultures, languages, and ways of life. Another theme is teamwork. When he crosses over to a universe like the Transformers universe, he has to learn to work with the Autobots, and they all have to figure out how to combine their strengths to face challenges.