A plotline could also be Leo's internal struggle while being sick. He could be worried about losing his position as the leader if he's incapacitated for too long. The fanfiction might show his mental state deteriorating as his physical health does. His brothers would have to not only deal with his physical ailment but also boost his confidence.
One common plotline could be the other turtles trying to take care of Leo. They might struggle to figure out what's wrong with him at first. For example, Donatello would use his scientific knowledge to run tests. Another plotline could involve Leo being stubborn about accepting help while he's sick, thinking he can still lead and protect the team even in his weakened state.
One common plotline could be the other turtles trying to take care of Donnie. They might struggle with understanding his illness at first. For example, Mikey could try to make his favorite pizza to cheer him up but Donnie doesn't have an appetite. Another could be Donnie trying to work on his inventions even while sick, which might make his condition worse. And perhaps there's a search for a cure within the sewers or with the help of their human friends.
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.
Often in fanfiction where Leo is hurt, it involves him being poisoned. Maybe he gets hit with a dart laced with a slow - acting poison while on a mission. His brothers are desperate to find an antidote in time. This can lead to a lot of emotional moments as they search everywhere and Leo slowly gets weaker. They might have to seek help from unlikely allies, like some of the mutants they usually consider enemies.
In the traditional TMNT universe, male turtles like Leo getting pregnant goes against the biological norms of the franchise. However, in fanfiction, anything can be reimagined. Some fanfiction might use magic or some out - of - the - box concepts to make such a situation possible, but it's not part of the official TMNT lore.
One common plotline could be his brothers' reactions. They might go into overprotective mode. For example, Donnie would immediately start working on medical treatments while Raph gets super angry and wants to find out who or what caused the injury. Leo, on the other hand, would try to keep everyone calm and focused on getting Mikey better.
One common plot element could be the other turtles rallying around Mikey. They might try to find a cure or take care of him. For example, Donnie could use his scientific knowledge to diagnose Mikey. Another element could be Mikey's own struggle with being sick. He might feel weak and frustrated that he can't do his normal activities. Also, there could be a threat that takes advantage of Mikey's weakened state, like an enemy planning an attack while he's down.
In some fanfictions, the villains might take advantage of his sickness. They could try to attack him when he's weak. But of course, his friends will be there to protect him. His sick days could also be a time for him to reflect on his life as a hero - in - training. He might think about his relationships with his classmates and how he can improve himself once he gets better.
One common plotline could be Deku trying to hide his sickness from his friends at U.A. High so as not to worry them. He might keep pushing himself during training, which could lead to him collapsing eventually. Another could be his friends finding out about his illness and rallying around him to help him get better, like bringing him home - made soup and study notes so he doesn't fall behind in class.
Often, there's a moment of self - discovery for Donnie. When he gets hurt, he might realize his own vulnerability and how much he depends on his brothers. This could lead to some emotional moments between them, like heartfelt conversations while he's recovering.
Sometimes, in these fanfics, the focus could be on how Bakugou's sickness affects his relationship with his family. Maybe his mother comes to take care of him and they have some heart - to - heart conversations that show a different side of their relationship.