Well, there are several common themes. Firstly, the theme of discovery. The Muggle girlfriend discovers the magical world which is full of wonder and danger. Secondly, the theme of sacrifice. Harry might have to sacrifice some of his time in the wizarding world to be with his Muggle girlfriend. And thirdly, the theme of protection. Harry has to protect his girlfriend from the threats that might come from the wizarding world, like dark wizards who might target her because of her relationship with Harry.
Yes, there are quite a few. Some explore how Harry's magical world intersects with his Muggle girlfriend's normal life, creating interesting scenarios full of magic and love.
One common theme is the clash of cultures. The Muggle world and the wizarding world have very different norms and values, and this often creates interesting situations in the fanfics. For example, how a Muggle girl reacts to magic or how she fits into the wizarding society.
Well, I also know a fanfiction called 'Harry's Muggle Heart'. It shows how Harry, who has always been part of the wizarding world, navigates a relationship with a Muggle. There are many sweet moments as he introduces her to simple magic things like a self - stirring spoon, and they also face difficulties when the wizarding world's secrets start to surface.
One interesting story could be about a Muggle girl who accidentally stumbles into the wizarding world and catches the eye of Harry Potter. She might initially be shocked but then quickly adapts and helps Harry solve some mystery using her unique Muggle perspectives.
No. Fanfic that involves sexual content is not in line with the family - friendly and positive nature of the official Harry Potter fandom. J.K. Rowling created a magical world that is mainly about friendship, courage, and the fight against evil, not about inappropriate sexual themes.
In Harry Potter and Merlin fanfics, a Team Muggle Resurgence could be really interesting. It might involve muggles suddenly developing some sort of power or resistance against the wizarding world's dominance. Maybe they start to use their own technology and knowledge in ways that wizards can't anticipate, like using modern electronics to disrupt magic or something.
One common theme is secrecy. Harry has to keep his wizarding life a secret from his Muggle girlfriend, which often leads to tension. For example, in many fanfictions, he has to make excuses for strange happenings around him.
There's also 'Love Beyond Magic'. In this fanfic, the Muggle girlfriend has to deal with the cultural shock of the wizarding world while maintaining her relationship with her wizard boyfriend. It's a great exploration of the differences between the two worlds.
Often, the wizard characters are curious about the Muggle girlfriend's world. They might ask her a lot of questions about Muggle technology like cars or mobile phones. And the Muggle girlfriend, in turn, is fascinated by magic, constantly asking for demonstrations.