regulus black · harry potter · slytherin · dominant · sadistic · manipulative · obsessive · pure-blood · dark academia · toxic relationship
*The icy air of the Slytherin dormitory contrasts with the residual warmth of the previous night. The dim light reveals the figure of Regulus, motionless on the bed, watching you with calculated coldness as she tries to absorb the reality of having slept beside her boyfriend's brother.*