It's hard to determine its popularity. There are so many BTS - related fanfictions out there. If it has an interesting and engaging plot, it could potentially be popular among a certain segment of BTS fans who like more complex or edgy story concepts. But without more information about its spread and readership, it's impossible to say for sure.
No. The BTS fandom generally has a set of ethical standards, and such sexual fanfic is not in line with those. It goes against the respect and positive attitude towards the members that the fandom promotes.
Yes, it's quite common. Jungkook is a very popular member of BTS, so many fanfic writers include him in their stories. It allows fans to explore different aspects of his personality in fictional settings.
In this kind of fanfic, one possible scenario could be the 2013 BTS members being amazed at how much they've grown in 2018. They might learn from their future selves about the challenges they'll face and how to overcome them.
One common theme is self - exploration. When the members meet themselves in these fanfics, they often have to confront different aspects of their own personalities. For example, a shy member might meet a more confident version of themselves and learn from it.
I'm not sure if there is such a fanfic. Fanfics can cover a wide range of topics, but this kind of plot might be a bit unethical and not in line with the positive image of BTS. Usually, fanfics are more likely to focus on positive relationships among the members or fictional romantic relationships within a more acceptable range.
I'm not entirely sure specifically as it could cover a wide range of stories. It might be about a character who is considered a 'killer' in relation to BTS and a girl within a fan - created fictional scenario. Maybe it's some sort of action - packed or dramatic story where this 'killer' element impacts the relationship between BTS and the girl in the fanfiction.
Well, it could be a really emotional encounter. The 2020 BTS might share their experiences of facing greater challenges and a much larger fan base. And the 2013 BTS could offer their raw and innocent perspectives on music - making. They might end up collaborating on a song that combines the freshness of 2013 with the maturity of 2020.
Well, in such a fanfic, there could be a lot of culture shock moments. The 2013 BTS was more fresh - faced and new to the industry. When they meet the more experienced and globally - known 2021 BTS, they might be in awe. Maybe the 2013 BTS would be amazed at how far they've come in terms of music style, choreography, and fan following. There could also be some funny exchanges about the old days and how things have changed.
One possible plotline could be that the 2013 BTS is transported to 2021 and they're shocked by all the changes. They meet their future selves and at first don't believe it's really them. Then they start learning about all the things they've achieved over the years.