Buffy would likely become more protective and nurturing. She was always a fighter, but now she has a new life to safeguard. Spike, on the other hand, might find a new sense of purpose. He could become more selfless, as his focus shifts from his own desires to the well - being of his family. For example, he might start to avoid dangerous situations more for the sake of the baby.
Buffy's character could develop a new side of vulnerability. She's used to being the strong one, but now she has someone completely dependent on her. Spike would transform in his own way. He might start to see the world in a different light, through the eyes of his child. Their relationship would also change as they are now united not just by love but also by the shared responsibility of raising a baby, which would make them both more empathetic and patient with each other.
Buffy would likely become even more protective and fierce. Her slayer side would blend with her motherly instincts. Willow would grow in confidence as she uses her magic to care for the baby. She might also become more assertive in protecting their family.
One possible plot could be that Buffy and Spike initially struggle with the idea of having a baby. They might face challenges from the supernatural community as their relationship was always complex. Their friends could be divided in their reactions, some supportive while others worried about the implications. The baby could inherit unique powers, leading to various adventures as they try to protect it from those who might want to use its powers for evil.
Their relationship could develop through shared experiences in the fight against evil. As they face stronger foes together as a married couple, their bond can grow deeper.
In fanfiction, their relationship development often involves facing external threats together. When they are married, they become a united front against new evils. This makes them rely on each other more, strengthening their bond. Also, they start to share their innermost feelings and secrets, which deepens their relationship on an emotional level. For instance, Spike might share his past traumas with Buffy, and she in turn might open up about her fears as a slayer.
Jimmy might become more responsible. He was probably a bit of a carefree character before, but with a baby, he has to grow up fast. He starts thinking about the future and providing for his family.
Lucian might become more protective. His fierce nature could be redirected towards safeguarding his family. Sonja, on the other hand, could become more nurturing. For example, she might use her skills to create a safe environment for the baby.
In many fanfics, Spike often develops from his more villainous self towards redemption. For example, he might start to feel remorse for his past actions and strive to be better. Angel, on the other hand, may face new challenges that test his already established moral code. Their development is often intertwined as they interact. In some fanfics, Spike's brashness can push Angel to re - evaluate his own reserved nature.
Love and family are common themes. The stories often revolve around how Spike and Buffy's love for each other is strengthened by their love for their child. It's about building a family in the midst of their dangerous and chaotic world.
Damon would likely become more protective and responsible. He might start to see the value in a more stable life. Elena would grow in her maternal instincts and become even more of a force to be reckoned with when it comes to protecting her family.
Travis might become more responsible. He could go from being carefree to being very protective of his family. Katie, on the other hand, might become more patient as she takes care of the baby.