When you swipe up on a story, it could indicate that you're interested in learning more about it. It might lead to expanded text, related links, or other related information.
Swiping up on her story can have different meanings. In some cases, it could lead to exclusive content that she has made available only to those who interact in this way. It can also be a form of communication. If she has set it up that way, swiping up might be like a digital 'raising your hand' to start a conversation with her about the topic of the story.
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.