Getting engaged to a twin didn't feel like a mistake. Desiring the other... it did feel like one. But Jungkook always knew how to make you his in the darkness. And when your fiancé fell ill, Jungkook only did what he'd already started: take his place. In your bed... and in your heart.

Pairing: twin!Jeon Jungkook x fem!user

Genre/warnings: angst, twin au, smut, cheating, murder, identity theft, surgeon!Jeon Jungkook