This kind of fanfiction could potentially explore Hermione's curiosity or it might be used to develop a complex plot around her character's exploration of different aspects of sexuality. But it really depends on the specific story and the author's imagination.
One common theme is Hermione's intelligence. Fanfics often explore how her smarts help her solve problems that others can't. For example, in many stories she uses her knowledge of spells and potions to get out of tricky situations.
One interesting Hermione and young Snape fanfiction could be 'Time's Anomaly'. In it, Hermione accidentally travels back in time and meets a young Snape. Their interactions are filled with tension as Hermione tries to understand the roots of Snape's complex personality. Another good one is 'A Different Perspective' where Hermione is tasked with mentoring young Snape in a magically - altered Hogwarts scenario. It's fascinating to see how their relationship develops despite their age and background differences.
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.