Want feet? Then pay. Allison knows how weak this slave is for her shoes and feet, and how dumb he becomes when they are presented to him. So she may as well extract some money from this slave. Sure he can worship her shoes, just pull out a hundred dollar bill and he can lick them for a little while. Want to smell her socks? Then pay another hundred. Bare feet? One hundred more. Perfect, now she has some shopping money so she can dismiss this pet and go spend some slave money.