Some Tumblr blogs are dedicated to sharing fanfictions. You might want to search for tags related to ciel x lizzy lemon on Tumblr. There could be some bloggers who post or recommend such fanfictions.
One popular ciel and lizzy lemon fanfiction might be those that explore their relationship in a different setting, like a modern AU (alternate universe). In these stories, Ciel could be a regular high school student and Lizzy could be his classmate. They might face typical high school dramas while still having the essence of their original relationship from the source material.
Fanfiction.net is also a great place to look. It has been around for a long time and has a wide range of fanfiction. You might need to do a bit more digging compared to AO3, but it's likely to have some interesting ciel and lizzy lemon fanfiction. Just make sure to read the reviews and ratings to find the better - quality ones.
There's a fanfiction titled 'Unlikely Bonds' which delves into how Ciel and Lizzy Lemon, coming from different worlds, gradually form a relationship. It shows their journey of understanding each other's personalities and pasts in great detail. In this story, they face many challenges together which ultimately strengthen their bond. It's a really engaging read as it combines elements of adventure and romance.
Ciel would likely become more protective. He has always been in a dangerous world, and now with a baby on the way, he'll do whatever it takes to safeguard his family. Lizzy, she might become more nurturing. She was already a strong character, but motherhood could bring out a softer, more patient side of her.
Adventure could also be a theme. Writers might put Ciel and Lizzy in various adventurous situations where they have to rely on each other and their relationship deepens as a result. For example, they could be on a quest together to solve a mystery or defeat an enemy. This not only adds excitement to the story but also gives more depth to their relationship.
One of my favorite scenes in Ciel x Lizzy fanfiction is when Lizzy stands up for Ciel in front of others. It shows her loyalty and her growth from a somewhat sheltered girl to someone who can be a protector. Another great scene is when Ciel lets his guard down a little around Lizzy, like sharing a quiet moment in the garden. It's a rare moment of vulnerability for him.
Another reason could be that fanfiction gives them a sense of community. By loving and reading fanfiction, they can connect with other fans who have similar interests. They can discuss their favorite stories, share their thoughts on different interpretations of their characters, and feel part of a bigger group.
In Kuroshitsuji fanfiction, Ciel and Lizzy often have a complex relationship. Lizzy is initially presented as a somewhat naive girl, but she has a deep affection for Ciel. Their relationship can be seen as a blend of childhood friendship and something more. Ciel, on the other hand, is burdened with his revenge and his role as the Earl. Sometimes, in fanfiction, their relationship is explored in different ways, such as Lizzy becoming more aware of Ciel's true self and trying to support him despite his dark secrets.
In some ciel x lizzy fanfictions, there is a theme of self - discovery. As they interact more, they learn more about themselves. Ciel might discover a softer side of himself because of Lizzy, and Lizzy might find more strength in herself. Also, the theme of loyalty often comes up, as they prove their loyalty to each other in different situations in the stories.
There's also 'Ciel and Lizzy: A New Chapter'. This fanfiction takes a different approach. It starts with Ciel and Lizzy getting into an argument over a decision Ciel has made. But through the course of the story, they come to understand each other better. The writing style is engaging and it keeps you hooked from start to finish.