Well, a frequent theme is the change in their relationship. The pregnancy can either bring them closer or cause some initial friction. Also, the theme of secrecy sometimes comes up. They might want to keep the pregnancy a secret from their enemies or some of their more judgmental friends. And there's always the theme of preparing for the future, like finding a safe place to raise the child.
In many of these fanfictions, the theme of family support or lack thereof is prominent. Some stories show their friends and family rallying around them, while others depict a more isolated situation. Additionally, the theme of how their powers might affect the pregnancy or the child is also quite common. For example, they might worry about passing on their supernatural abilities in a way that could be dangerous for the baby.
Another theme is the power of friendship turning into love. They start as friends or reluctant allies and then slowly develop deeper feelings. This is seen in a lot of fanfics where they initially work together against a common foe and then realize they have more than just a friendly connection.
One common theme is the struggle against the odds. Since they are in a world full of vampires, witches, and other supernatural beings, the pregnancy is a huge challenge. Another theme is the development of their relationship. Often, the pregnancy forces them to re - evaluate their feelings for each other and become closer. For example, Damon might become more gentle and caring, which is a big change from his usual self.
Love and passion are common themes. Since it's lemon fanfiction, there is often a strong focus on the physical aspect of their relationship as well as the emotional connection.
A prevalent theme is redemption. Damon may be portrayed as a character who needs to redeem himself in Bonnie's eyes, or through his love for Bonnie, he finds a path to redemption. Also, the theme of forbidden love often shows up. Given their relationship's nature and the context of the original story, it can be seen as something that goes against the norm, which adds an exciting and often angst - filled aspect to the fanfiction. There's also the theme of mutual growth. Their relationship can be a catalyst for both of them to grow as characters.
The idea of Bonnie being pregnant for Damon in fanfiction also gives room for character development. For Bonnie, it could mean facing new responsibilities and for Damon, it might be a chance to show a more caring and committed side. Fanfic writers can take this premise and explore themes like love, family, and sacrifice within the context of this new situation.
Damon and Bonnie are likely characters from a particular fictional universe, perhaps a TV show or a book series. They are two individuals with their own personalities, backstories, and relationships within that fictional world. Damon might be a complex character with a bit of a dark side, while Bonnie could be strong - willed and have her own powers or abilities.
One common theme is redemption. Damon has a lot of past wrongs, and in many fanfictions, Bonnie plays a role in his journey towards redemption. For example, she might make him face the consequences of his actions in a more empathetic way.
One common theme is the idea of an unlikely friendship. Since they have different personalities in the show, fanfictions often explore how they can form a deep bond. Another theme is adventure. They are usually thrown into some sort of dangerous or mysterious situation together.
Love is a very common theme. Since they are in a human context, their love is more about normal human connections, without the supernatural elements influencing it directly.
One common theme is the exploration of Damon's character in a new light. Since pregnancy is something that challenges his usual persona, it shows his vulnerability and strength at the same time. Another theme could be the reaction of the people around him, like his friends and family in the fanfiction world.