In a 'princess becomes a dragon fanfiction', a possible plot could be that the princess, out of her love for the dragons that are being hunted in her kingdom, makes a deal with a dragon spirit. The spirit transforms her into a dragon so that she can fight for the rights of the dragons. As a dragon, she has to convince her own people, who once saw her as a princess, to stop the dragon hunts and see the dragons as intelligent and worthy beings.
Maybe the princess has a hidden connection to dragons all along. One day, she accidentally activates this part of her heritage and transforms into a dragon. In her dragon form, she embarks on a journey to find out more about her true identity and the history of her dragon lineage. Along the way, she meets other dragons who help her understand and accept her new self.
Well, one plot could be that the princess is cursed by an evil sorcerer to turn into a dragon. As a dragon, she discovers new powers and a different perspective on her kingdom. She might initially struggle to control her new form but then learns to use it to protect her people from threats that normal human means couldn't handle.
Well, it could be that Hiccup is cursed by an evil sorcerer who wants to turn him into a dragon as a form of punishment. But as he turns into a dragon, he finds that he has a new connection with the dragon world. He starts to see things from a dragon's perspective and uses this to bring peace between humans and dragons in a whole new way.
Maybe Natsu discovers a new magic spell that accidentally turns him into a dragon. He then has to figure out how to reverse it while dealing with the new powers and instincts.
Well, perhaps Hedwig could be magically transformed into a dragon. Then she might go on adventures, using her new dragon abilities like flying faster and breathing fire to protect her wizard friend from dark forces.
The main antagonist could be an evil knight who has a vendetta against dragons. When the princess turns into a dragon, he sees her as a prime target and tries to slay her, believing all dragons are evil. He doesn't care that the princess was once human and is only focused on his own prejudiced views.
In the fanfiction, Harry might be cursed to transform into a dragon periodically. He then has to figure out how to control this new form. He could meet other magical creatures that are either scared of him or intrigued by his dragon form. He might also find that his dragon form gives him unique powers that he didn't have as a human wizard, like the ability to fly faster or breathe a more powerful type of fire.
Well, it could be about Natsu suddenly finding himself in a situation where he has multiple dragon companions who are all attracted to him. Maybe he has to deal with their different personalities and powers while also trying to figure out how he got into this harem situation in the first place.
Well, it could involve Issei discovering some ancient dragon magic. Maybe he stumbles upon a dragon's lair and is blessed with dragon powers. He might start to have dragon - like instincts, like a strong urge to hoard treasures or protect a certain territory.
In this 'dean becomes a dragon supernatural fanfiction', it could start with Dean being in a fight with a powerful demon. During the battle, the demon casts a spell that backfires and instead of killing Dean, it turns him into a dragon. Dean then has to deal with the fact that he is no longer fully human. He may have to hide from other hunters who might see him as a threat. Meanwhile, he tries to figure out how to use his new dragon abilities to continue his fight against the supernatural, all while trying to find a way to turn back to his normal self.
Well, perhaps Harry stumbles upon an ancient book about dragon riding in the restricted section of the library. As he reads it, he's drawn into a world of dragon riders. He then meets a mysterious figure who offers to teach him the ways of dragon riding. Harry embarks on this new adventure, facing challenges like learning to communicate with the dragon and mastering the art of flying on its back. Along the way, he makes new friends among other dragon riders and they all fight against a common enemy that threatens the existence of both the wizarding world and the dragon habitats.
One possible plot could be that Natsu is cursed by a dark wizard. This curse slowly transforms him into a fire dragon. As he changes, he struggles to control his new dragon - like instincts and powers. His friends initially fear him but then realize they need to help him break the curse.