Yes, there are quite a few. You can start by looking on popular fanfiction websites like Archive of Our Own. Some stories might focus on their adventures together in the world of the original series they are from, exploring their relationship dynamics and how they support each other through different challenges.
Archive of Our Own (AO3) is a great place to start. It has a large collection of fanfiction from various fandoms, and you're likely to find some stevonnie x kiki stories there.
I'm not sure if there is a specific 'kiki x mitsuhide lemon fanfic' available. You can try searching on some popular fanfic platforms like Archive of Our Own or FanFiction.net.
In a great Meeting Stevonnie fanfiction, the world - building should be on point. Since Steven Universe has such a rich and detailed universe, the fanfic should add to that in a believable way. It could introduce new locations or expand on existing ones. And of course, it should have a unique take on the concept of Stevonnie. Maybe it shows a side of Stevonnie that we haven't seen much in the show, like their creative side or their sense of humor.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfics, and you can simply search for 'Stevonnie' in the search bar. Another option is FanFiction.net, though the quality can vary more there. Just be sure to read the summaries and reviews to find the ones that seem interesting to you.
Well, it might be that Stevonnie is on a mission to find a special crystal that Peridot has knowledge about. Peridot is hesitant to share at first but as they interact more, they realize they have a common goal which is to protect the crystal from a group of villains. They then combine their powers and skills to fight off the bad guys.
Perhaps in the fanfiction, Stevonnie could face challenges from society. Since they are a rather unique being, there might be prejudice or misunderstanding about their pregnancy. They would then have to fight for their right to have and raise their child in a positive environment. Also, the relationship between Stevonnie and their partner (if there is one in the fic) could be explored deeper as they navigate this new chapter of their life.
Well, a common theme is the exploration of Stevonnie's powers. How they use their combined abilities in different situations, whether it's for fighting or for helping others. Another theme is family. Even though Stevonnie is a unique entity, they are still part of the larger family in the 'Steven Universe' world. There are also themes related to cultural exchange, as the show has a diverse set of characters and concepts.
They could have a mentor - mentee relationship. Stevonnie with their experience in both the human and gem world could teach Peridot a lot about emotions and relationships. And Peridot could teach Stevonnie about advanced gem technology.
One way to write it uniquely is to focus on the magical or supernatural aspects of Stevonnie's pregnancy. Since they are a fusion, there could be some extraordinary things that happen during the pregnancy that are related to their gem powers. For example, the baby could have some sort of gem - related ability even before birth.