One common theme is Jake's struggle with his dual identity as a human and a dragon. Fanfictions often explore how he balances his normal life with his responsibilities as a dragon. Another theme could be his relationships, like with his family or friends, and how they are affected by his dragon nature.
Some blogs that focus on animated series and their fan creations can also be a great source. These blogs often curate and feature interesting fanfictions. Keep in mind to respect the rights of the fanfiction authors and the original series when exploring these works.
Most likely not. Jake Long is a character that usually has adventures in a more action - oriented and age - appropriate context. Diaper - related stories about him would seem rather odd and not in line with the typical Jake Long narrative, so it's not something that would be easily found as a kid - friendly story.
Princess Bubblegum would be a great addition. She could offer her scientific knowledge to help Cake and Jake in their adventures. For example, if they encounter a strange chemical reaction or a mechanical problem, she could come up with a solution. Finn is also a good choice. His bravery and sword - fighting skills would be useful when they face dangerous situations. And Marceline the Vampire Queen could add an element of mystery and her vampire powers might come in handy at times.
Typically, the main characters would be those from RWBY. Ruby, with her leadership skills and powerful scythe - wielding abilities. Weiss, the ice - using heiress. Blake, the faunus with her unique fighting style, and Yang, the brawler with her powerful punches. In the fanfiction, they may be in different situations, for example, they could be separated from each other at the start and have to find their way back together, which would be a central part of the story.
Obviously, Jake is one of the main characters. And the members of the pack would also be main characters. They are the ones who are likely to be involved in all the lemon - related adventures.
The main characters in the real story of Jake and the Beanstalk are Jake, of course, and the giant. Jake is the young boy who goes on the adventure up the beanstalk. The giant is the powerful and somewhat menacing figure that Jake has to outwit in order to get the treasures and return safely home.
There could be some humorous or out - of - the - box 'Jake Long in diaper' stories if we consider it from a comical or creative writing perspective. For example, perhaps in a parallel universe where Jake Long's dragon powers got zapped away when he was a baby again and he had to go through his adventures in a diaper. But really, this is all just wild speculation as there's no established set of such stories that I'm aware of.