What are the common plotlines in 'Fred George Jealous Harry' slash fanfiction?

I'm not sure about specific 'Fred George Jealous Harry' slash fanfiction. You could try searching on fanfiction websites like Archive of Our Own. They have a vast collection of fanfictions, and by using the relevant tags and keywords, you might be able to find what you're looking for.

Another theme is loyalty. In these fanfictions, they are often depicted as being extremely loyal to each other, even in the face of difficult situations. This loyalty is what holds their relationship together and helps them overcome various obstacles. They would stand by each other no matter what, whether it's dealing with school bullies or more serious threats from the wizarding world.

There's 'The Trio's New Dynamic' which delves into how Harry's relationship with Fred and George changes the whole Gryffindor dynamic. In this fanfiction, they might be involved in some pranks that lead to more serious adventures and self - discovery. For example, a prank gone wrong could lead them to discover a hidden part of Hogwarts and in the process, their relationships grow stronger.

One good fanfiction could be 'The Prankster's Plan'. In this, Fred and George come up with elaborate schemes to make Harry jealous in a light - hearted way. Maybe they pretend to be more interested in a girl Harry has a crush on, but all in good fun.

Another theme could be growth. Their characters develop over time, learning from their experiences. For instance, they might learn about the importance of loyalty and sacrifice through the events in the fanfiction stories.

Another theme is growth. Harry, Fred and George all grow and change throughout the series. In fanfiction, this can be further explored. For instance, how Harry's leadership skills develop as he teams up with the twins more often, or how Fred and George learn to be more responsible as they get involved in more serious matters with Harry.

One common theme is friendship. In these fanfictions, the bond between Harry, Fred and George is often explored deeply. They support each other through various challenges at Hogwarts or in the wizarding world at large.

Overcoming challenges. Given the dangerous world they live in with Voldemort around, they often have to work together to face and overcome various threats and difficulties. For example, in some fanfictions, they team up to outwit Death Eaters or solve mysterious magical problems that put Hogwarts at risk.

There are quite a few fanfictions out there. 'The Trio's Tale' is a great one where it really explores the characters of George, Harry, and Fred in a way that makes their relationship interesting. It often has them facing challenges together and growing closer as a result. And then there's 'Fred's Perspective' which gives a different view on their interactions, especially how Fred sees his relationship with George and Harry.

You should also consider the relationships they already have in the original story. Harry is friends with Fred and George, but you want to build on that. Maybe have them share secrets or have an adventure that only the three of them can go on. It could be something like finding a hidden magical object in the Forbidden Forest. This would force them to rely on each other and deepen their bond. And don't forget to use vivid descriptions to bring the story to life.