The kiss can strengthen their relationship immediately. It can make them more protective of each other. For example, Jace might become even more determined to keep Clary safe after the kiss, seeing her not just as someone he has to protect because of the mission, but as someone he truly loves.
In a fanfiction, their kiss could be a turning point in their relationship. Maybe they had been denying their feelings for a long time, but this kiss shatters all the barriers. It could happen in a secret, magical place within the City of Bones. The setting would add to the allure of the moment. Clary might be the one to initiate the kiss, surprising Jace, and from that moment on, their relationship takes a new direction, filled with more love and understanding.
After the kiss, their relationship might become more public. They could start to be more open about their feelings in front of their friends and allies. For example, they might hold hands more often or give each other knowing looks in group settings.
Their relationship could develop through shared danger. For example, when they are in a fight against a horde of demons in the City of Bones, they rely on each other's skills. Jace's combat expertise and Clary's ability to see things others can't work in tandem, and this mutual dependence could bring them closer.
One scenario could be that their kiss is a moment of realization. In the midst of all the chaos in the City of Bones, their kiss is like a sudden burst of clarity. They've been through so much together, and this kiss is the culmination of all the unspoken feelings. It could be a very passionate kiss, filled with all the pent - up emotions from their adventures and the danger they've faced.
The kiss could also be a part of a rescue mission. Jace is in danger, and Clary uses the power of their love, expressed through a kiss, to save him. She kisses him, and somehow, her love transfers energy or a healing power to him. This could show the depth of their bond and how their relationship is not just about romance but also about being there for each other in the most difficult situations.
Their relationship would become more centered around the baby. They would have to make decisions together for the sake of their child, which would strengthen their bond.
They could start by looking at some well - known fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfiction for various fandoms, including the City of Bones. There are likely to be many high - quality stories there, sorted by different categories such as genre, rating, and relationship focus.
It would change in many ways. They would go from being carefree high school sweethearts to having a lot of responsibilities. There would be more arguments as the stress of the situation builds up. But at the same time, they would also have deeper moments of love and understanding as they face this huge life change together. Jace might become more overprotective of Clary, and Clary would need Jace's support both emotionally and physically.
The relationship would evolve significantly. Before the baby, they were mainly focused on their own adventures and relationship. But now, they are parents. They would need to support each other in different ways. For instance, Jace might be more protective of Clary and the baby. Clary would be more nurturing, and they would both have to learn to balance their duties as Shadowhunters with their new family life.
Clary might react with a sense of numbness at first. She's pregnant, which is a huge life change on its own, and then to find out Jace has cheated. She could withdraw into herself, not really knowing how to handle it. As time passes, she'll likely start to feel a deep sadness. She might cry a lot and feel like she's lost not only her relationship but also the future she had envisioned with Jace. However, her pregnancy could also give her the strength to be more independent and start thinking about building a new life for herself and the baby.