It might inspire other dragon riders and their partners in the fanfic. Seeing Astrid and Hiccup become parents could give them the idea to start their own families. This could lead to a growth in the human - dragon community as more children are born who grow up with a connection to dragons. The dragons could also start to teach the new generation about their ways, creating a deeper understanding between the two species.
The event of Astrid giving birth could also have an impact on the dragon world in terms of hierarchy. Maybe the dragons start to view the new baby as having a special status. This could lead to some dragons being more subservient or protective towards the baby and its family. It could also cause some changes in how the dragons interact with the village as a whole, with new rules or traditions being formed around the new addition to the family.
The birth could strengthen the bond between humans and dragons further. Dragons might see the new baby as a symbol of hope for the future of their co - existence. They could become more protective of the village where the baby is born, as they feel a new sense of connection to the family.
The fanfic could focus on Astrid's pregnancy journey that led to the birth. It might detail how she coped with the physical changes and the support she received from Hiccup and her friends. There could be a part where they prepare for the baby's arrival, like building a nursery or gathering supplies. After the birth, it could show the couple's joy and the celebration within the village, with everyone coming together to welcome the new life.
In the fanfiction, Twilight Sparkle giving birth could bring about a more unified Equestria. The foal could be a symbol that brings all the different pony tribes closer together. Also, the new life might inspire new laws or ways of living in Equestria. Maybe there will be more focus on education and nurturing the young with Twilight as a role model for motherhood. It could also lead to new magical discoveries as the foal grows and shows its unique powers.
Astrid's character could develop in many ways. She may become more empathetic towards the other mothers in Berk. Before, she was mainly focused on her warrior duties, but now she can relate to the women who have to take care of their families. She might also learn to rely on others more, especially Hiccup, as she goes through the physical and emotional changes of pregnancy.
If Izuku gives up, his friends like Ochaco would be deeply affected. Ochaco has always been inspired by Izuku's determination. Without him, she might lose some of her own motivation. Bakugo too would be impacted. Despite their complex relationship, Bakugo has come to respect Izuku's growth. His giving up could be a shock to Bakugo and might even make him re - evaluate his own path as a hero.
Since 'lemon' fanfics are inappropriate, we can talk about common themes in regular Hiccup and Astrid fanfics. One common theme is their partnership in dragon - training and leading Berk. Another is their evolving romantic relationship, from initial attraction to deep love.
One idea could be that Astrid discovers she's pregnant during a time of relative peace in Berk. She initially tries to keep it a secret from Hiccup because she's not sure how he'll react. As the story progresses, she starts to show signs and has to face the reality of sharing the news. Meanwhile, the village is preparing for a new celebration, and Astrid is worried about how the pregnancy will affect her role in it.
One possible title could be 'Astrid and the Male Reader: A HTTYD Adventure'.
If Astrid gets injured, it could strengthen her relationship with Hiccup. Hiccup would be very worried about her and would do everything he can to take care of her. This would show Astrid how much he cares, and she would likely appreciate his efforts, bringing them closer together.
There would be a shift in their dynamic as they prepare for a family. Hiccup, who is used to being adventurous, would have to focus more on home and stability. Astrid, while still strong - willed, would become more nurturing. They would need to find a new balance in their relationship, between their old selves and their new roles as parents - to - be.
First, focus on building their relationship. Start with how they meet in the How to Train Your Dragon world. Maybe the reader is a new dragon rider and Astrid helps them train. Describe their conversations, like when they exchange tips on flying or taking care of dragons. You can also include their adventures together, facing challenges like a new dragon species or a threat to the village. This way, you can create a strong bond between them without any erotic elements.