This slave is smelling Kendalls socks when he is supposed to be packing her luggage. He knows such a privilege only comes with significant begging, which is why Kendall is upset with him when she walks in the room. Now she will make him do this properly, if he wants to smell her used socks then he will have to beg for each one of them, groveling like a good slave to smell whatever remnants of her foot smell is infused in the fabric of her socks.