A typical theme in these fanfictions is the growth of the characters. For instance, while rescuing April, Michelangelo might become more brave and responsible. Additionally, the mystery surrounding April's kidnapping can be a major theme. Who kidnapped her and why? This mystery keeps the readers hooked as the turtles try to solve it during their rescue mission.
A common plot twist could be that April was actually kidnapped by someone she thought was a friend. This person could be under the control of a greater evil. It would add an element of betrayal to the story.
One possible scenario in a TMNT April - kidnapped fanfiction could be that the Foot Clan is behind the kidnapping. They might want to use April as bait to lure the turtles into a trap. The turtles would then have to outwit the Foot Clan's various henchmen and ninjas to reach April. April herself could also show some of her own fighting skills or use her wits to try and escape on her own while waiting for the turtles to arrive.
Well, in this type of fanfiction, the villains who kidnap April can vary. It could be the Foot Clan trying to use her as a bargaining chip against the turtles. Or maybe some new, evil mutant has emerged and sees April as a key to something. The story usually focuses on how the turtles will overcome the obstacles to get her back safely. There are often a lot of action - packed scenes as they battle their way to April.
One common theme could be the reactions of the Turtles. They might be protective of April. Another could be the challenges April faces during her pregnancy in a world full of mutants and danger.
One common theme is the struggle with their different natures. Raphael being a mutant turtle and April being human. Another could be the protection aspect, where Raphael is always ready to protect April.
Often, there's a plotline where Leo's kidnapping is part of a bigger scheme against the turtles. For example, the kidnappers might be working for a more powerful enemy who wants to take over the city. Another common plotline is Leo being kidnapped to be used as a bargaining chip, like to get some sort of valuable item from his brothers.
One common theme is friendship. April's relationship with the turtles as friends is often explored, showing how they support each other through various challenges. Another theme is adventure. Fanfictions might take April and the turtles on new quests or battles against new villains. And there's also the theme of family. Since the turtles are like a family, April can be seen as an important part of that extended family unit in many stories.
One theme could be redemption. As mentioned before, Karai has been involved in the Foot Clan's wrongdoings. April could be the catalyst for her redemption, showing her that there is a better way. Another theme could be friendship against all odds. Their different backgrounds and loyalties make it seem impossible for them to be friends, but the fanfiction could explore how they overcome these barriers.
One possible scenario in a fanfiction about April and Karai could be their relationship evolving from rivalry to an unexpected alliance. They start off as enemies due to their different allegiances in the TMNT 2012 universe. April, being associated with the Turtles, and Karai, with the Foot Clan. However, as they face common threats or discover shared secrets, they might begin to work together. This could lead to some really interesting character development for both of them, as they learn from each other's strengths and weaknesses.
Friendship is a common theme. In many of these fanfictions, female characters form strong bonds with the turtles. For example, they might start as strangers but quickly become trusted allies. Another theme is adventure. The female characters often join the turtles on their exciting escapades around New York City.