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.
Another plot could be that they are both in a high - school sports team. Hiccup is not as athletic as the others, but Astrid helps him train. During the training sessions, they start to bond. There could be a moment when Hiccup gets injured and Astrid takes care of him, which makes their relationship take a new turn.
One interesting plotline could be that as they turn into dragons, they have to quickly learn how to fly and hunt like real dragons. They might face challenges from other dragons who see them as outsiders in their new dragon forms.
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.
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.
Maybe Astrid is hurt while on a mission to explore a new area. Hiccup, being the caring friend he is, sets aside his own tasks to stay by her side. He could search for a rare herb to heal her wounds. As he does this, their relationship deepens as Astrid realizes how much Hiccup truly cares for her.
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.
A plot point could be a misunderstanding. Maybe Astrid sees Hiccup spending a lot of time with a new female dragon rider and gets jealous. This causes a rift between them, but then they have to work together to save Berk from a new threat. During this, they clear up the misunderstanding and their love becomes stronger.
Another interesting plot point could be a misunderstanding. Maybe Astrid sees Hiccup with another girl (who is actually just a friend helping with dragon research). Astrid gets jealous and starts to distance herself from Hiccup. Hiccup is confused at first but then realizes what's going on and has to work hard to win Astrid back. This creates a lot of drama and tension in the story.
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.
There could be a fanfiction where Hiccup and Astrid's kiss is a part of a bet. Astrid bets that Hiccup can't tame a particularly stubborn dragon in a week. If he does, she'll kiss him. Hiccup manages to tame the dragon, and the kiss that follows is a mix of pride, surprise, and the start of a new level of their relationship.