Since 'sex httyd fanfic' is not an appropriate genre, I can't recommend any. Instead, try to find fanfics that are based on the original spirit of the HTTYD franchise, which is about courage, loyalty, and the co - existence between humans and dragons.
No, it's not okay. 'How to Train Your Dragon' is a family - friendly franchise mainly aimed at younger audiences as well as general fans. Writing sexual fanfic related to it goes against the essence of the original work and can also be considered inappropriate and unethical.
There is a 'brave httyd fanfic' called 'Alliance of Heroes'. In this fanfic, the main characters from 'Brave' find themselves in Berk and team up with Hiccup and his friends. They face a common enemy and it's really interesting to see how their different skills and personalities blend together in the story.
One popular RWBY HTTYD fanfic is 'Dragon Riders of Remnant'. It combines the unique elements of both universes really well. The characters from RWBY interact with dragons in a way that stays true to their original personalities.
One great 'braced httyd fanfic' could be 'The Bond Beyond Wings'. It delves deep into the relationship between Hiccup and Toothless in a new and exciting way. Another one might be 'Adventures in Berk's New Era' which shows how the characters adapt to new challenges while still maintaining their core relationships. There's also 'Dragon Riders United' which focuses on the unity among the dragon riders and their dragons.
You can find good 'httyd fanfic' on websites like Archive of Our Own (AO3). It has a large collection of fan - created stories, and you can search for 'httyd' specifically. There are also some fan - made forums dedicated to 'How to Train Your Dragon' where fans share their fanfic works.
First, understand the world of HTTYD well. Know the characteristics of different dragons and the relationships between characters. Then, create an interesting plot. Maybe a story about a human turning into a dragon and their adventures in the dragon world. Also, focus on character development. Let the characters grow and change throughout the fanfic.
Well, for a httyd transformers crossover fanfic, start with a strong concept. Maybe something like the Autobots land on Berk and have to figure out how to deal with the dragons. Focus on the interactions between the characters. The vikings' reactions to the giant robots and the Transformers' views on the dragons would be really interesting to explore. And make sure your writing style is engaging, using vivid descriptions to bring the crossover world to life.
One interesting HTTYD2 fanfiction is 'The Next Adventure'. It continues the story after the events of HTTYD2, exploring new lands and challenges for Hiccup and Toothless. It really captures the spirit of the movies.
You can try fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fan - created works, including 'httyd lemon fanfic'. Just be sure to use the search function effectively to narrow down your results.
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.