I found this part particularly interesting: "Another angle is that many people consider curves in general to be sexy or arousing, and the average foot is composed almost entirely of curves; the top of the foot, the tips and bottoms of the toes, balls of the toes, instep, heel, ankle, soles, and toenails are often all curved, making the foot one of the curviest parts of the human body. In much the same way that breasts, buttocks, or hips are often considered attractive because of their curves, so too can the foot be regarded as an object of sexual desire." Curves are good.