There could be. Fanfiction communities vary greatly. While the 'kaname and yuki pregnant' concept might be popular, not all writers will include lemon content. You can also check out some dedicated Vampire Knight fanfiction forums where fans might discuss and share such clean fanfictions.
A plotline might be about the anticipation and excitement of the pregnancy. Kaname and Yuki could be researching about their baby's possible powers or traits, given their vampire heritage. They might also be attending prenatal classes designed for vampires, which could be different from human ones. There could be a sub - plot about how their pregnancy is seen as a symbol of hope in the vampire community, or perhaps there are some vampires who are envious or worried about the implications of a half - vampire baby being born.
Yuki, on the other hand, could grow in her confidence and maternal instincts. She might start to assert herself more, especially when it comes to protecting her pregnancy. She may also have to deal with new fears and insecurities, but overcome them as she realizes the importance of her role.
One possible scenario in a fanfiction could be that Kaname and Yuki's relationship progresses to the point where they decide to start a family. Maybe they face some initial hesitations due to the dangerous world they live in. Yuki might be worried about how her half - vampire nature could affect the pregnancy. However, with Kaname's support and love, she overcomes her fears. Their friends in the Vampire Knight world could also play important roles, either supporting or causing some minor conflicts during this time.
Yuki and Kaname are the key players in this fanfiction. Yuki is typically a girl with a lot of potential but also a bit of an underdog in the school setting. Kaname is the one who seems to have a lot of influence and power. He's always there to look out for Yuki, and their relationship forms the core of the story.
Typically, in 'yuki and kaname lemon fanfic', there will be a strong focus on the relationship between Yuki and Kaname. It might include intense emotional exchanges and interactions specific to their bond.
One possible plotline could be Yuki and Kaname facing a school mystery together. Maybe there's a secret room in the school that they discover while exploring. Another could be a school competition where they have to team up against other students, which deepens their relationship.
Typically, in 'kaname x yuki lemon fanfic', there would be a strong focus on the relationship between kaname and yuki. The 'lemon' aspect might imply a more romantic and perhaps a bit more sensual undertone in their interactions. It could involve more in - depth exploration of their feelings and emotions towards each other, often with a touch of drama.
One possible storyline could be that they face challenges from their families or the vampire society they belong to. Maybe there are concerns about the half - vampire nature of the baby and how it will be accepted. Another could be that they go on a journey to find a safe place to raise their child away from the chaos and danger that often surrounds them.
Well, I'm not an expert in this particular fanfic area. However, you could also check out some dedicated fanfiction forums. Sometimes, fans discuss and share their favorite 'kaname x yuki' fanfics in those places. They might be able to point you to some great reads that are lemon - flavoured in terms of the story's style or relationship development.