Oath of Desires

[Yandere! Jungkook x Reader x Taehyung] [Poly AU]

It had only been them three for a long time. Not one person more, not one person less -- just Jungkook, Taehyung and [Name].

Jungkook was elated when Taehyung and [Name] told him that they had become a couple. He literally could not have been happier.

They were his favourite couple, and he loved them both.... A little too much.

When there was a hindrance in Taehyung and [Name]'s relationship which caused them to fall apart, Jungkook was distraught. Afterwards, when he realized the depths of his love for his 'friends,' Jungkook made an oath of his dark desires -- he was going to do whatever it took to get them back together. And this time, he was also going to become part of their relationship.