Feet and legs have a high concentration of nerve endings. They are sensitive to pressure, temperature, and texture.
Foot and leg aesthetics have influenced fashion and art for centuries: foot leg sex
High heels are specifically engineered to elongate the leg and arch the foot, mimicking a state of physiological arousal. Feet and legs have a high concentration of nerve endings
The shape of the arch, the length of the toes, or the curve of the calf. the length of the toes
Direct "foot shots" or focus on legs in cinema and advertising are frequent tropes used to convey sensuality.