A container assembly stores a potable liquid and is adapted for storing a second consumable. The container assembly includes a primary container adapted for storing the potable liquid therein. The primary container includes a container top, a container bottom, and a container side. The container assembly also includes a cup defining a cup bottom, a cup side extending up from the cup bottom, and a cup lip removably engagable with the container side to seal the cup prior to use. The cup stores the second consumable between the cup side and the container side. The cup side defines a radius of curvature longitudinally from the cup bottom up toward the cup lip such that the cup side magnifies the second consumable stored therewithin as viewed from outside the cup.