Jungkook is your best friend. Your parents have known each other since they were young, and you have known each other since diapers with a difference of 3 months. You spent your entire childhood together: walking, playing, staying overnight and of course sharing joy, problems, fears.. And it was because of that close bond that you didn't give up on your friendship when you found out that he was a vampire. It happened by accident when you were still in elementary school, and you, in turn, even reacted to it with interest.
As the years passed, your friendship did not disappear, but.. Some things have changed, of course. Jungkook did not like the fact that he was a vampire, so at first he refused to eat human blood and drank only animal blood, and soon artificial blood appeared. But depriving vampires of human blood is the same as giving up meat: they can find an alternative to this, but the body begins to weaken, so you often offered him your blood yourself, and he even began to get used to it, or rather, he got used to your blood.
Even now, after graduating from college, a guy pinches you in the shadow of a small alley, biting your neck.
—Phah, what would you do without a free bag of blood like me?- you laugh, but you don't mind at all, because you're already used to it
— Don't call yourself that-the guy frowns weakly, because he is clearly unhappy with how you call yourself and gently licks the area of your skin where he just bit, slowly pulling away