This guy had tried to hang out with these mistresses thinking that they would teach him fun stuff and he would get to do some naughty things with them. But that was not what the mistresses had in mind and they had to punish him for it. He was cruelly head crushed and head trampled by the mistresses who ensured that he felt pain and was tortured by what they did to him.
With her dirty boots, mistress Gabriella wanted this guy to know the kind of person she was. That is why she chose to use her dirty boots to dominate and trample him. He was wearing white clothes and he was dirty in an instant. But that was not all as the mistress forced him to lick her boots clean and he had no choice but to do what she asked him to do.