Mistress Alexis wanted to dominate her naughty slave as she felt that he was crossing a line and she did not want him to do so. She facesat him but that was not enough so she also smothered him with her feet. The mistress loved how it all went down and she loved how scared he was of her after what she did. He begged her not to do it again.
Mistress Alexis gave her boyfriend fire dick sucking but she got lousy pussy licking and that was not ok with her. She had to find a way to teach him as she was getting the short end of the stick. So she withheld dick sucking services until he brought his pussy licking skills up to par. And she taught him how to do that by making him lick her feet according to her instructions.