Y/n and Harrison have been best friends since they were fifteen. He's been there for her through thin and thick, always willing to drop everything for her whenever she needs him even in the most intimate way. When she boldly proposes to make the casual encounter a regular thing it becomes harder and harder for the boy to hide the way he's been feeling towards her for years but y/n has made herself emotionally unavailable, past experiences leaving her too jaded to pursue something stable with anyone. « You're my best friend and I trust you...» ranked #1 in harrisonosterfieldxreader on 23/04/21