One theme that often shows up is self - discovery. Female Prussia in fanfiction might be on a journey to figure out her place in the Hetalia universe. This could involve her exploring her own strengths and weaknesses. Also, there are fanfictions that focus on her cultural identity, like how she represents Prussian culture as a female character.
I'm not sure about specific fanfictions off the top of my head. But you could also try looking on Fanfiction.net. There are often a lot of Hetalia - related fanfictions there. When searching, make sure to check the tags carefully to find exactly what you're looking for regarding female Prussia.
Well, one possible plot could be that Prussia, now as a girl, has to navigate the world of international relations in a different way. Maybe other countries would react with shock at first and then gradually get used to this new Prussia. She might also have to deal with new emotions and how to present herself in a more feminine way while still maintaining her Prussian pride.
Some popular themes include brotherly relationships. Prussia often acts as an older, protective figure to Little Germany. Another theme could be historical events. They might be depicted dealing with the aftermath of certain wars or political changes. Also, there's the theme of growth. Little Germany's development into a more mature nation with Prussia's influence can be a common thread.
One idea could be Prussia as a girl trying to break into the typically male - dominated military world in the Hetalia universe. She could face challenges and prejudices but also prove herself to be just as capable as the male characters.
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.
Germany might be really confused at first. He's used to Prussia as his older brother figure, so seeing Prussia as a girl would be a big shock. He might be a bit protective in a different way than before. Italy would probably be very excited and might even start flirting a bit. He's always been a bit of a ladies' man, so he'd be intrigued by this new female Prussia.
In most stories, Prussia is often very protective of Little Germany. He might give advice on how to deal with other nations or handle political situations.
A common theme is the exploration of their cultural differences. Hungary has his own unique cultural traits and Prussia has hers, and in fanfiction, it's often interesting to see how these differences play out in their relationship.
Well, Prussia could be really excited about the pregnancy and start planning all kinds of things for the future. He might want to teach the baby how to fence or other Prussian traditions as soon as possible. He could also be very nervous, especially when it comes to doctor's appointments. He would hold the reader's hand tightly during ultrasounds and be in awe when they see the baby for the first time on the screen. And when the baby kicks for the first time, Prussia's reaction could be really precious. He might be so excited that he wants to tell all his friends right away.