Adventure is also a common theme. They go on different quests or face various threats together. This could be something like exploring an ancient gem ruin on Earth or fighting off a new enemy. The theme of acceptance is important too. Accepting each other's flaws and differences. Amethyst accepting Steven's sometimes naive view of the world, and Steven accepting Amethyst's wilder side.
A common theme is innocence. Since she's a baby amethyst, the fanfictions often explore her naivete and how she discovers the world around her. Another theme is growth. It shows how she develops her gem powers and her personality over time. Also, the relationship with the Crystal Gems is a big theme, like how they protect and guide her.
In Steven Universe fanfiction, the relationship between Steven and Amethyst can be really interesting. They are both very different characters. Steven is kind - hearted and has a strong sense of justice, while Amethyst is more of a free - spirited and somewhat rebellious character. In some fanfictions, their relationship might develop into a deep friendship where they support each other through different challenges. For example, Steven could help Amethyst come to terms with her insecurities about being a 'lesser' gem compared to the others.
Friendship and family are also likely themes. In the Steven Universe world, relationships are important. The fanfics might show how the relationships between Pearl, Amethyst, and their gemlings form a sort of family unit or a strong friendship bond, dealing with the joys and challenges that come with it.
One common theme is friendship evolving into something more. Their long - standing friendship in the show can be a basis for the development of romantic feelings, leading to the kiss.
Another theme is adventure. For example, in fanfics like 'Amethyst and Steven's Epic Quests', they go on exciting adventures together, facing strange creatures and solving mysteries. This gives the writers a chance to create new and exciting worlds for them to explore.
One possible theme could be discovery. As I said before, if the lemon is some sort of new or magical object, the characters are on a journey of discovery about it. Another theme could be acceptance. If 'lemon' is a new character or concept, the other characters have to learn to accept it. For example, Amethyst might be more open - minded while others like Garnet or Pearl might be more skeptical at first.
Friendship is a very common theme. Steven is known for his ability to befriend others, and in fanfiction with Peridot, we often see their friendship grow and develop. They learn from each other and support one another through various situations.
Growth and self - discovery also play a big part. Both Steven and Connie are growing characters, and in fanfiction, they often learn more about themselves and their powers or abilities while in each other's company.
Garnet could be a great addition. Her wisdom and calm nature could provide some contrast to Steven and Amethyst's more impulsive personalities. She could also offer some valuable advice to them during their adventures.
There might be such a fanfic. The 'Steven Universe' fandom is quite large and creative. However, it's also possible that it doesn't exist. You could try searching on popular fanfic websites like Archive of Our Own or FanFiction.net to see if there's a story with this concept.