This kind of porn comic is usually of an adult nature and may involve explicit and inappropriate content. It's not something suitable for discussion in a positive or casual way.
Yes, there is. Jack London's works were often adapted into various forms of media, and it's likely that in 1941, a film based on his novel about wolves was made.
The 'jack and the wolf 1st grade story' could be about Jack's adventure with the wolf. Perhaps Jack lives in a village and one day, a wolf comes near the village. Jack has to be brave and find a way to either scare the wolf away or get help. He might learn some valuable lessons during this process, like the importance of honesty if he has to tell others about the wolf.
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.