We don’t even need to write an intro here, as this gem of a paper did it better than we ever could:
“In general, people are attracted to nice legs and feet. The foot is an erotic symbol, variably appreciated by different people [1]. Erotic thoughts and feelings about feet may become intentionally accentuated by fashion and the wearing of shoes with high heels, providing a position of the foot that resembles its position during (female) orgasm when feet and toes may automatically go into plantar flexion resulting in arching of the foot and curling of the toes [1, 2]. …
In society, special attention is paid to the physical relation between foot and pleasant or even sexual feelings by different forms of foot massage. Currently, the association of feet with sexual attraction and eroticism has been explained in terms of psychology and sociology [1]. However, an underlying neurobiological theory of a possible foot–genital relationship has so far not been formulated.” You’re welcome.
