She is an author who has created rich and complex fictional universes. In her works, she often uses science - fiction elements to tell stories that are not only entertaining but also thought - provoking. For instance, she might use alien cultures to reflect on human values.
It could be Meg. Since she's often the outcast in the show, turning her into a giantess could be an interesting twist. It would give her a new - and very literal - form of power and attention that she doesn't usually get in the show.
Ariel could be an interesting character to pair with Ursula. It could be a story of redemption where Ariel tries to understand Ursula's motives and helps her turn good. Their interactions would be full of tension at first but could grow into a friendship over time.
I'm not sure specifically which 'Ursula' you are referring to. There could be many Ursulas with different true stories. It could be a person named Ursula in a local community story, or perhaps a character from a family's history. Without more context, it's difficult to tell the exact true story.
Flounder could be a main character. He might be the one who first discovers Ursula's resurrection and warns Ariel. Prince Eric could also play a major role. He could lead the human side in a fight against Ursula if she decides to attack the surface world.
A 'giantess cuckold story' typically involves a fictional scenario where there is a giantess character in a relationship dynamic that may involve elements similar to the concept of cuckoldry in some way. However, it's often a very niche and specific type of fictional or fantastical narrative.