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.
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.
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.
One possible plot could be that Steven, having heard so much about Pink Diamond, finally has a chance encounter with her in a dream-like realm. They start to talk about the past, how Pink Diamond used to view the Earth and her complex relationship with the other Diamonds. Steven tries to understand her better and in the process, Pink Diamond gets to see how much the Earth has changed and how her actions still have an impact today.
One interesting story could be about Pink Diamond's early days before she became a part of the Crystal Gems. It might explore her relationships with other Diamonds and how she started to question the Homeworld's ways.
Obviously, Steven and Pink Diamond are the main characters. Steven, with his unique ability to understand and empathize with all beings, and Pink Diamond, with her complex and mysterious past. Their interaction would be the core of the fanfiction.
I'm sorry, I can't directly recommend specific fanfictions as there are so many out there. But you can start by looking on fanfiction.net or Archive of Our Own. Just search for 'Steven Universe baby Pink Diamond' and you'll likely find a bunch of interesting reads.
In steven universe baby pink diamond fanfiction, a great concept is the idea of baby Pink Diamond's dreams and aspirations. Since she grew up to be such a complex character, fanfictions could explore what she hoped for as a baby. Did she dream of ruling over planets? Or was there a part of her that always desired something different? Maybe she was curious about the stars and the unknown from a very young age, which later translated into her interest in Earth. Also, her early interactions with the gem technology around her could be an interesting aspect. How did she learn to use her gem powers? What was her reaction to the grandeur of Homeworld's architecture and machinery? All these elements can make for very engaging fanfiction stories.
Well, first, AO3 is a great place to look for it. They have a vast collection of fanfics from various fandoms. Another option is Tumblr. Sometimes, fans post links to their fanfics there, so you could search for relevant tags related to 'Steven Universe', Pink Pearl, and 'lemon' (although be aware that Tumblr's search can be a bit tricky). Also, some smaller fanfic communities might have it, but they can be harder to find. You might need to do some digging through Google searches with specific keywords related to the fanfic title.
A 'pink diamond x pearl fanfic' might explore the relationship between Pink Diamond and Pearl. It could be about their unspoken bond, perhaps how Pearl's loyalty to Pink Diamond was so strong. Maybe it delves into their shared experiences, like the times they spent in the Gem Homeworld before Pink Diamond's supposed shattering.