Life As The Pet Of An Alien
Humanity finally manage to destroy the planet causing us to have to go back to our more primitive ways of living in small isolated nomadic hunter gather tribes. It has been a few centuries since we have had to become this and most of our previous ways of life are gone and replaced with a more animal-like lifestyle. It has all actually been an improvement for mankind. It promoted peace and a healthier happier life style, but they still got one more thing to worry about.
Yep, some alien scouts discovered the small remote planet on the edge of the Milky Way and thought that these creatures are just to cute to not keep as pets.
Poor human Jimin gets taken away from his family by aliens and sold as a pet. Thankfully his the person who bought him doesn't seem so bad.
Humans are extremely unknowlageable about sexual acts in general. So it can seem like Jungkook and the other take advantage of that but the stories not dark very fluffy. Just a heads up though.