This slave is in training and one of the most important skills I'd like him to develop is to be able to suck My feet clean. He needs talent and dedication, but everything else depends on My exquisite training schedule. I will stretch his mouth so he is able to take My whole foot in it and suck it clean without gagging. He will use his tongue to lick and his soft, wet mouth to swallow all My sweat and dirt and ask for more. I'm training him to be fucked in his mouth with My foot and he seems to be learning it well. Next step is to stretch that mouth big enough for both My feet.