Sarah likes to have her slave nearby so that she can humiliate him anytime she wants or feels like. This time she made him lick and smell her stinky socks
She has unkempt feet and she likes to trample with them. She also likes to have slaves suck her toes and lick her feet.
Kim wanted to see if this guy had balls so she humiliated him by making him smell her feet and socks in public
This mistress knew that the slave wanted to atone for what he had done. She made him lick her dirty shoes and smell her stinky socks