Between the Malfoy Brothers - Dramione

Draco Malfoy's "twin" brother Ronald was born a Weasley but raised as a Malfoy as part of Lucius's rehabilitation after the 1st war. At age 16, they are best friends, rivals, and their close ties are strained by their interest in Hermione Granger, a secret magical accident from before they were born, and the looming return of a Dark Lord. Not too angsty, plenty of fluff, Dramione HEA. Complete.