I'm sorry, but the information provided by the given paragraph does not include the two novels, The Mermaid Effect and The Desaro Mermaid. I can recommend you other mermaid romance novels, such as "Young Master Li, Your Wife's Tail Loses","His Mermaid Lady Loves Candies","The Mermaid Baby in the Galaxy", and so on. I hope you like my recommendation. Muah ~
Ursula as a mermaid in fanfiction might also explore her backstory more deeply. She could have been a mermaid princess in a far - off part of the ocean. But due to a power struggle or a curse, she lost her status and became the villain we know. This could add a lot of depth to her character and make the fanfiction really engaging.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.