Hiccup's reaction to fear and danger is a key aspect. At first, he might be terrified, but as the story progresses, he could learn to control his fear and use it to his advantage. He might become more confident in his abilities and in himself. This can be shown through his internal monologues, where he reflects on his situation and how he has changed from the Hiccup who was first kidnapped.
His relationships with others can also be a big part of his character development. If he meets other captives or his kidnappers, how he interacts with them, whether he tries to understand their motives or just fights back blindly, can show his growth. Maybe he starts off being angry and vengeful but then realizes that there's more to the situation and becomes more empathetic.
The character development could also be shown through their relationships with others. For instance, the character might have had a strained relationship with a family member, but the pregnancy could bring them closer together as they both look forward to the new addition to the family. Or the character could become more empathetic towards other parents in the village, understanding the joys and struggles they face.
Toothless is the most likely one. Their bond is so strong that Toothless would sense Hiccup's distress and come to his rescue. He could fly into Drago's hideout and cause chaos to free Hiccup.
For Hiccup, start with her insecurities. Maybe she doubts her leadership skills as a female in a male - dominated dragon - riding world. Then, as she interacts with Ruffnut, she could gain more confidence. For example, Ruffnut might encourage her to be more assertive in a certain situation, like when dealing with a difficult dragon. And for Ruffnut, her development could be about becoming more empathetic. She could learn from Hiccup how to think about others' feelings.
Her character development would likely be different because of her gender. She might face more discrimination from the Viking community at first. However, her time with the dragons could make her more resilient and determined to prove herself. For example, she may be more cautious in some ways as females in Viking society were often expected to be, but her dragon - raised side could make her bold when it matters.
For Hiccup, start with his existing traits like his courage and intelligence. As he gets closer to the female Toothless, he could become more empathetic towards her species. Maybe he starts to understand the female Toothless' perspective better, which changes his approach to dealing with dragons in general. For the female Toothless, show her initial wariness of Hiccup, and then as time passes, her trust in him grows. You can do this through their interactions, like how she lets Hiccup touch her in certain ways that she wouldn't allow others to do.
Toothless' loyalty plays a big part. His loyalty to Hiccup makes him determined to save Hiccup no matter what. This loyalty has developed over time through their shared adventures and experiences.
In this kind of fanfiction, perhaps Hiccup would be in great danger. Drago might use Hiccup as a hostage to get something he wants, like controlling the dragons that are allied with Hiccup's people. He could also try to force Hiccup to reveal the secrets of his unique bond with Toothless.
His character could also develop in terms of his understanding of different kinds of magic. He starts off knowing only about the magic related to dragons. But in the fanfiction, as he watches and interacts with the Guardians, he begins to understand their magic. This could lead to him becoming more open - minded and adaptable. He might start to think about how the different magics could work together to protect both his world and the world of the Guardians. And this new knowledge could also change how he approaches problems back in Berk. For instance, he could try to incorporate some of the Guardians' ideas or magic - like things into his dragon - training methods.
For the female character, you can develop her based on how she reacts to her hiccup. Is she embarrassed by it? Or does she see it as something unique? Her relationship with the Toothcup can also shape her. If she sees the Toothcup as a solution to her hiccup problem, she might be more determined. For the Toothcup, you can give it characteristics like being mischievous or wise, which will then influence how it interacts with the female character.
Well, Hiccup is very resourceful. He could use the environment around him to his advantage. If he is locked in a place, he might find a weak spot in the structure, like a loose board or a hole in the wall. And he could call for Toothless secretly. Toothless, being highly intelligent, could find Hiccup and rescue him. Also, Hiccup could befriend some of Viggo's minions and convince them to help him escape.