Pray For My Sins | YoonKook

Yoongi is the son of a Pastor, his religion has been his whole life, he's done everything by the book, including fighting off his demons, but a new demon emerges in the form of a new upper classmate, who has Yoongi on his knees for sinful things.

Or

Yoongi, a very 'straight' religious boy, has a perfect and normal life, until he meets Jeon Jungkook.