Well, in fanfiction about pregnant Sarabi, her mood swings could be quite interesting. They can be used to create various plot twists. Maybe her mood swings make her more irritable towards Simba at times, which could lead to some misunderstandings between them. This can then drive the story forward as they have to work through these issues while also preparing for the new arrival.
Fanfiction often explores the relationship between Sarabi and Mufasa during her pregnancy in interesting ways regarding mood swings. Sarabi may experience mood swings due to hormonal changes and the anticipation of motherhood. These mood swings could be a way to show the vulnerability of her character. Mufasa, on the other hand, might be depicted as being extra protective not only of Sarabi but also of her emotional state. He would try to keep the pride calm around her, so as not to add to her stress, and be there for her whenever she has an emotional outburst.
Often, her mood swings are shown through sudden outbursts or changes in behavior. She could go from being calm and collected to crying over a small thing. This shows the readers how pregnancy affects her emotions.
Hormonal changes are a big factor. Just like in real life, pregnancy hormones can make Sarabi's emotions go up and down. For example, she might feel overly sensitive or irritable. Another cause could be the stress of impending motherhood. She has to think about taking care of a new cub and ensuring its safety in the pride.
In fanfiction, Naruto's mood swings can be due to his past traumas. For example, his loneliness as a child might resurface and cause sudden mood changes. He could be cheerful one moment and then suddenly sad when reminded of being an outcast in the village before he made friends.
Often, his mood swings are shown through his interactions. He might be excited to go on a mission with his friends and then become sullen if he's not given the lead role. It's a simple yet effective way to show his complex emotions.
Prussia would probably be initially confused by the mood swings. But being a loyal and loving partner, he would try his best to adapt. He might just stay quiet and listen when the reader is in a bad mood, offering a shoulder to cry on. If the reader is suddenly happy, he would join in the joy wholeheartedly.
In a fanfiction scenario, Sarabi's pregnancy might be a difficult one. There could be a shortage of food, and she has to rely on the wisdom of the elder lionesses to ensure the health of her unborn cub. Meanwhile, Scar might be plotting in the shadows, seeing this as an opportunity to create unrest in the pride.
The relationship could become strained. Mufasa's moodiness might make Sarabi feel unloved or unappreciated at times. She may start to withdraw from him emotionally. However, as the pregnancy progresses, they might realize they need to communicate better. For example, Sarabi could sit Mufasa down and tell him how his mood is affecting her.
His mood swings can be quite unpredictable. One moment he might be all happy and loving, and the next he's withdrawn. It's often due to his deep - seated emotions. Just accept that it's part of who he is.