The difference between seven, eight, and nine foot billiard tables was mainly in size and the place where they were used. Seven feet, eight feet, and nine feet were the standard size of a billiard table. The seven-foot billiard table was usually used for nine-ball play and was relatively small. The eight-foot billiard table was suitable for a four-meter-long room. It was suitable for small billiard rooms or places with limited space. The nine-foot billiard table was larger than the eight-foot billiard table. The stability of the table was better, and it could accommodate more players and referees. It was suitable for larger venues. Therefore, the choice of a seven, eight, or nine-foot billiard table could be decided according to personal needs and the size of the venue.
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.
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.
In the big feet story, the significance of big feet could be that they represent uniqueness. Just like any physical trait that stands out, big feet can make the character different from others in the story.