Sure. 'The Maturity of Hiccup and Astrid' is a great one. It shows how Hiccup has grown from a boy into a wise leader and Astrid by his side, becoming a strong female figure. Their individual growth and how they support each other is really well - portrayed.
There is a lesser - known book called 'Hiccup and Astrid: Beyond Youth'. It details their journey into adulthood, facing political unrest in Berk and threats from outside. Through these challenges, their characters are tested and develop in ways that are both believable and inspiring. It also shows how their relationship changes and becomes more complex as they face these difficulties together.
Another is 'Hiccup and Astrid: Adulthood and Growth'. In this, we see Hiccup's struggle with new responsibilities as a leader and Astrid's evolution as a warrior and a partner. It really emphasizes their character arcs in a very engaging way.
One popular one could be 'The Lost Tales of Hiccup and Astrid'. It delves deeper into their relationship as adults, with new adventures in the Viking world.
I'm not sure about specific 'lemon' fanfics as they often contain inappropriate content. However, you can look for general Hiccup and Astrid fanfics on platforms like Archive of Our Own. There are many well - written stories that focus on their relationship, adventures, and character development.
There may not be a well - known 'hiccup' and 'astrid' - centered adult fiction that is extremely common. But you could try exploring fan - created works. Sometimes, fans of certain stories or shows write their own fictional pieces based on characters like hiccup and astrid. You can search for fanfiction websites and see if there are any adult - themed stories there, although the quality can vary greatly.
There is also 'Hiccup and Astrid's Adventure'. This one takes them on a journey to a new land. The way it describes their interactions and how they rely on each other is really engaging. The author has a great writing style that makes you feel like you're right there with Hiccup and Astrid during their adventure.
Archive of Our Own (AO3) is also a great place. It has a very inclusive and diverse set of fanfictions. Just search for 'httyd hiccup and astrid' and you'll get a bunch of results. The site also has good tagging systems so you can easily find stories with the elements you like, such as adventure or romance.
You can find it on fanfiction.net. There are a large number of stories dedicated to Astrid and Hiccup there. Just use the search bar and type in their names to start exploring.
There's also 'The Bond of Hiccup and Astrid'. This fanfiction takes a different approach. It focuses on their love through small, everyday moments. For example, how they train their dragons together and steal glances at each other. It's a very sweet and simple story that really shows their deep connection.
Another option is to search on Tumblr. There are often fanfic recs (recommendations) and some users may post their own fanfictions related to this topic. Just type in something like 'HTTYD 2 Hiccup and Astrid kiss fanfiction' in the search bar, and you might get lucky.
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.
Some fanfictions focus on their early days of getting to know each other. For example, a story where Hiccup is trying to teach Astrid more about Toothless and she is initially hesitant but then becomes fascinated, leading to a cute and heart - warming relationship development.