Another possibility is that there is a villain who has a plan to disrupt Kim's life. The villain makes Bonnie absorb Kim's traits as part of a devious scheme, thinking it will cause chaos between them or somehow weaken Kim.
Bonnie has a big impact. Her being away gives Vincent and Jules a place to take care of their bloody situation. If she was home, they couldn't have used her house.
It creates a sense of urgency. Vincent and Jules have to quickly clean up the mess and deal with the situation to avoid getting in trouble with Marsellus Wallace.
The Bonnie situation drives the plot forward as it forces Vincent and Jules to take action. They can't just leave the bloody car as it is. So they go to Bonnie's, which leads to other events.
The Bonnie Dilemma drives a lot of the action in Pulp Fiction. It forces Vincent and Jules to take certain actions like cleaning the car and trying to cover their tracks.
The kiss can be a turning point. Before the kiss, they might have had a sort of love - hate relationship. But after that, they could start to explore their feelings more deeply. They may start to have private moments together, away from the rest of the group. Their relationship could also change in terms of how they interact with other characters. For instance, they might team up more often against common enemies, and their combined powers as a vampire and a witch could make them a formidable force. This new relationship dynamic can also create tension within the group, as some characters may be suspicious or worried about their new alliance.
Well, their storyline could develop in a way that they start to plan for the future. They might consider leaving their life of crime, at least temporarily, to ensure the safety of the baby.
Well, Geralt might die as a result of a powerful curse or magic. Maybe he angered a powerful sorcerer or witch who cast a spell on him that he couldn't resist. This could be a slow and agonizing death as the magic takes its toll on his body and mind. Another possibility is that he sacrifices himself for someone he loves or to save the world from a great evil. He might put himself in harm's way knowingly, and in the process, lose his life.
Superman's death in comics is often a result of epic battles or selfless acts. For instance, he might face an opponent whose power is just too overwhelming, or he might give his life to prevent a major catastrophe.