Maybe they are in a forest filled with dangerous magical creatures. A giant snake - like creature lunges at Annabeth. Percy quickly moves in front of her and the creature bites his leg. In another situation, they are in a magical maze. There are walls closing in on them and spikes starting to protrude from the sides. Percy pushes Annabeth out of the way of a spike that was about to impale her, but he gets scratched all over his body. And they could be in a fight against a powerful sorcerer. The sorcerer casts a spell of dark energy towards Annabeth, and Percy uses his own power to try and block it. However, some of the dark energy seeps through and causes internal damage to Percy.
One possible scenario is that Annabeth might lie to Percy about something really important. For instance, she could lie about her whereabouts when she's actually meeting someone who is not a friend to Percy. When Percy discovers the truth, he would feel betrayed and hurt.
One possible plotline could be that Timmy and Trixie are in a magical forest when a group of dark fairies attacks. Timmy uses his fairy - godparent powers to shield Trixie from their harmful spells, getting hurt in the process. Trixie then has to find a way to help him, like searching for a special healing flower.
There could be a fanfiction where Naruto and Ino are exploring an ancient ruin. Unbeknownst to them, there are traps everywhere. When a huge boulder starts rolling towards Ino, Naruto pushes her out of the way. He gets crushed under the boulder's edge. Ino is desperate to save him. She manages to find some herbs in the ruin that have healing properties and uses her medical knowledge to treat Naruto's injuries. Meanwhile, Naruto's willpower also helps him in his recovery.
In a story, there could be a situation where a magical curse is spreading. Beast Boy, seeing Raven in the path of the curse, uses his own body to block it. As a result, he is infected by the curse which starts to harm him physically and mentally. Raven then embarks on a journey to find a cure, all the while taking care of Beast Boy and their relationship deepens through this difficult time.
In many Beast Boy and Raven fanfictions, Beast Boy's act of protecting Raven is quite common. When he gets hurt in the process, it often adds a layer of drama. Maybe he takes a blow meant for Raven during a battle with a powerful villain. This could lead to Raven realizing her deeper feelings for him as she tends to his wounds.
Well, one scenario could be that Annabeth is reminiscing about their adventures together. In the fanfiction, she might be thinking about how Percy has saved her life multiple times. For example, during their battles against various monsters. Another could be that she's thinking about their relationship, like how they first met and how their feelings for each other have evolved over time. Maybe she's considering the future of their relationship in the context of the fanfiction world.
One possible scenario could be that they are simply having a lazy morning in bed, chatting about their next adventure. For example, Percy might be talking about the latest sea monster he heard about, and Annabeth could be making plans on how to defeat it. Another scenario could be that they are recovering from a battle and finding comfort in each other's presence in bed.
One common plotline could be Naruto facing a powerful enemy alone to safeguard Sakura. For example, in a fight against a rogue ninja who has a vendetta against Sakura's medical skills, Naruto jumps in front of an attack meant for her. This could lead to him getting seriously injured and Sakura having to use her medical ninjutsu to save him while also realizing her true feelings for Naruto.
One possible scenario could be during a battle with a supervillain. Max might be overconfident and underestimate the villain's power. The villain could then land a powerful blow that leaves Max seriously injured. For example, if the villain has some sort of energy - based attack, it could hit Max and cause internal injuries. Another scenario could be an accident during a training session with his family. Maybe they are practicing a new superpower move and something goes wrong, resulting in Max getting hurt.
In a fanfiction, Mikey might get hurt while trying to protect his brothers. For example, if the Kraang were attacking and his brothers were in danger, Mikey could jump in front of a powerful blast meant for them. This would leave him seriously injured, with his brothers then having to take care of him and find a way to heal him.