In POV porn movies, the main characteristic is that it makes you feel like you're in the scene. The camera angles and narrative are designed to simulate your presence. Also, they usually emphasize the actor's expressions and reactions for a more intimate feel.
Searching for and watching porn movies, especially those with a story, is not a good idea. It's against the law in many places and can lead to various problems. So, I can't offer any help regarding this.
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.