There's a story of Jake and Alex. They were neighbors and quickly became best friends. They often went to gay pride parades together. One time, Jake lost his job because of his sexual orientation. Alex helped him find a new one by networking and using his own connections. Their friendship was not only about having fun but also about being there in tough times.
One common theme is acceptance. In many gay bestily stories, friends accept each other's sexual orientation without hesitation. For example, a friend might be the first person to accept when someone comes out. Another theme is support, like in times of dealing with homophobia or just in general life struggles. Also, shared experiences such as going to gay - friendly events together is a common theme.
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.