It could be that a neighbor mentions it to her. If her neighbor has also received their water bill and they are chatting, the neighbor might say something like 'I just paid my water bill, did you pay yours yet?'. And this would make Jessica remember that she completely forgot about paying the water bill.
The consequence could be that she has to pay a late fee. In many fanfics, there are rules similar to real life. If she forgets to pay the water bill, she'll probably get a notice first, and if she still doesn't pay in time, there will be an additional charge. This could put a strain on her finances, especially if she's not well - off in the Twilight - inspired world of the fanfic.
This situation can add an interesting twist to the plot. It makes Bella seem more human and relatable. We all forget things sometimes. It could also lead to some comical moments, like her trying to figure out how to get the water back on in a hurry. Maybe it forces her to interact with people she normally wouldn't, which could introduce new sub - plots or character developments. For example, she might have to deal with a grumpy water company employee, and that could be a whole new side - story in the fanfic.
She might face a water cut - no more showers or using the tap water for cooking. It would be a real inconvenience, especially considering how often she might need to clean up after all her adventures in Forks.
She might realize it when she sees Percy's reaction to her actions. For example, if Percy looks at her with such disappointment and hurt in his eyes, it could be a wake - up call for Annabeth. That look could make her see how much she has damaged their relationship.
The plot could develop with Bella trying to find ways to pay the bill quickly. She might ask her friends for help, like borrowing money from Alice. Then she could have an adventure while trying to get to the water company office to pay the bill in person.
Well, she might face a late fee first of all. The water company could send her a warning notice. And it could also cause some inconvenience in her daily life, like not being able to use water properly for things like taking a bath or washing dishes. In the context of the Twilight fanfic, it could add an element of chaos to her already complex life among vampires and werewolves.
Ye Qingmei used many methods to realize her dream. First of all, she hoped that the people of Qing Kingdom could become unfettered people, possessing a mentality that did not yield, did not suffer setbacks, and did not fear correction. She tried to make drastic changes to the Qing Kingdom by opening newspapers, setting up the Inspection Council, and controlling the palace treasury. In addition, she borrowed the Qing Emperor's seed to conceive Fan Xian, hoping to continue the civilization of the previous era through her own bloodline. However, her measures disintegrated the power of the central government and aroused the fear of the Qing Emperor and Empress Dowager. In the end, it led to her death. Although she did not fully realize her ideals, her ideas had influenced many people and changed the fate of some people. Her efforts and dedication were noble.
Ye Qingmei used her knowledge and wisdom to successfully solve the mystery of the temple and took Wu Zhu to Dongyi. There, she met the Qing Emperor, Fan Jian, Chen Pingping, and others. She expressed her ideals, hoping that the people of Qing Kingdom could become unsettled people. They would not yield, not suffer setbacks, not fear correction, and not fawn over jackals and tigers. In order to realize her dream, she joined forces with a few people to carry out a drastic reform of the Qing Kingdom. She opened a newspaper, set up an Inspection Council, controlled the palace treasury, and even used the Qing Emperor to conceive Fan Xian. However, her measures disintegrated the power of the central government and aroused the fear of the Qing Emperor and Empress Dowager. In the end, it led to her death. Although she had not been able to fully realize her dreams, her hard work and the son she left behind, Fan Xian, had inherited her wisdom and paved the way for future generations, allowing the Qing Kingdom to make progress in Fan Xian's era.
She might realize it through a moment of vulnerability. For example, if Snape shows a side of himself that he usually hides, like his fear or his dreams, Hermione could be drawn to his authenticity. This newfound closeness could make her realize her feelings.
In some fanfictions, it could be through a moment of great danger. For example, when Peeta sacrifices himself to protect Katniss from a threat in the arena. Katniss then realizes that she can't bear to lose him, and that's when she understands her true feelings for him.