Snotlout could also be a significant supporting character. He might be jealous of Hiccup's relationship with Astrid and try to cause some problems between them. His attempts at meddling could create some interesting twists and turns in the story.
Ruffnut and Tuffnut could be supporting characters as well. They could be the comical relief in the fanfiction. Maybe they accidentally overhear some important conversations between Hiccup and Astrid and spread some misinformation, which leads to some hilarious misunderstandings in the story.
The main characters are Hiccup and Astrid. Hiccup is often portrayed as a bit of an outcast, but with a heart of gold. He might be into things like science or art that set him apart from the typical jock crowd.
In addition to Hiccup and Astrid, Toothless could also be considered an important character in the fanfiction. Since he is Hiccup's loyal dragon, he would be part of their daily life. He could be involved in their adventures, for example, helping them in battles or during their travels around the island or to other places.
Another plot could be that Hiccup and Astrid are both on the school's sports team. They are always competing with each other for the top spot. However, during an important competition, one of them gets injured. The other one shows great care and concern, which makes them see each other in a new light and leads to the development of their romantic relationship.
The main characters are obviously Hiccup and Astrid. Hiccup is known for his unique relationship with dragons, and Astrid is a strong and brave Viking. And of course, their baby is also an important character in this fanfiction, as the story will likely revolve around the new life they have created together.
Boomer and Buttercup could be main supporting characters. Boomer might be Brick's confidant, always there to give him advice about his relationship with Blossom. Buttercup could be Blossom's sister who is protective of her and has an opinion on her relationship with Brick.
Sasuke could be a supporting character. He might create some tension in the Narusaku relationship as he is often a rival to Naruto in different aspects. Kakashi could also be a supporting character. He may act as a mentor, giving Naruto and Sakura advice on relationships or how to handle their high school lives better.
In the fanfiction, perhaps there's a moment when Hiccup gets injured while protecting the village. Astrid stays by his side day and night, taking care of him. She reads to him, makes him his favorite food, and in those quiet days, they realize how much they mean to each other. Their love deepens as they share these tender moments.
It develops gradually. At first, they might be just friends who respect each other's skills. But as they go on more adventures together, they start to notice little things about each other. For example, Hiccup notices how Astrid is always the first to volunteer for dangerous tasks because of her bravery. And Astrid sees how Hiccup's intelligence always gets them out of tough situations.
Hiccup would probably be very worried. He'd rush to her side immediately. He might start to check her injuries right away and call for help if needed.
One of the most appealing aspects of Hiccup and Astrid falling in love in fanfiction is the development of their relationship. It often starts from their initial rivalry in the movies. In fanfiction, authors can expand on the small moments between them. For example, how they gradually realize their feelings during their dragon - riding adventures. Their different personalities also play a big role. Hiccup's more introverted and inventive nature contrasts with Astrid's strong - willed and assertive personality, which creates a great dynamic for their love story.