In 'Steven x Pink Steven fanfiction', themes of identity are likely to be prominent. As they are two parts of a whole, the stories could revolve around how they define themselves both individually and in relation to each other. Also, themes of redemption could be present. Maybe Pink Steven has some past actions that need to be redeemed through his connection with Steven. And then there are themes of growth, as they both grow and change through their interactions.
I haven't come across a particular 'Steven x Pink Steven fanfiction' myself. But in general, fanfiction often takes the characters and their relationships in unique directions. Some stories might develop a deep friendship between them, while others could even create a more complex, interdimensional connection. You can start by looking for tags related to these characters on fanfiction platforms and see what catches your eye.
I haven't read this specific fanfic yet. But generally, in 'Steven Universe' fanfics, Pink Pearl often plays an interesting role. If the 'lemon' in the title refers to a certain kind of fanfic trope, it might involve some more intense or emotional situations. Maybe this fanfic explores the character of Pink Pearl in a new and unique way, perhaps her relationship with other characters in the Steven Universe world.
A major theme is often power. As Pink Diamond, Steven has a different level of power and influence. Fanfictions might explore how he uses or misuses this power. Also, relationships are a big theme. His relationships with the Crystal Gems, his human friends, and even his enemies might change because of his new identity. For instance, his relationship with Garnet could be affected as she was made in part by Pink Diamond. There could be a lot of emotional turmoil and growth in these relationships.
Well, it depends on what you're looking for in a fanfiction. Some 'Steven is Pink Diamond' fanfictions are more action - packed, with Steven using his new - found power and status to fight against new threats. Others are more character - study - like, delving into his internal struggles and how he copes with being Pink Diamond. You really have to dig in and read a few to find the ones that suit your taste.
Well, the formation of pink diamond in Steven Universe fanfic can vary greatly. Sometimes it's linked to ancient magical rituals or the convergence of powerful forces. It all depends on the creativity of the author.
Perhaps the fanfiction could start with Steven having a strange dream about Pink Diamond. When he wakes up, he starts to notice small changes in himself, like his gem glowing pink more often or having strange new abilities. As he becomes more and more like Pink Diamond, he realizes that there is a connection between his mother and himself that he never fully understood. He then embarks on a journey to discover the truth about his transformation, along the way facing challenges from both the Homeworld and Earth - based gems who are either afraid of or intrigued by his new form.
Well, I'm not sure of a specific 'Steven becomes Pink Diamond' fanfiction off the top of my head. However, you could also try looking on FanFiction.net. There are so many fanfics there, and if you use the right search terms, you might come across an interesting one. Some might explore how Steven's character changes when he takes on the role of Pink Diamond, while others could focus on the reactions of the other characters in the story.
The theme of discovery is also prevalent. Steven discovers more about the Diamonds through his encounter with Pink Diamond, and Pink Diamond might discover new things about Earth and the Crystal Gems. There's also the theme of family, as Steven's connection to the Diamonds is a sort of family - related one, and this meeting can further explore that aspect.
Pearl, who was once Pink Diamond's servant, is another main character in many of these fanfics. Her loyalty to Pink Diamond, and how that loyalty has changed over time and affected her own character development, is a major aspect in these stories.