Elis Euryale - Just a tongue for my soles

The rule is simple: there will be no skin contact between us. If you say a word about that, I will get rid of you. Open your mouth. Reveal your tongue. Now bark. Pathetic, as much as I thought. Since there will be absolutely no access to my skin, to my feet, you can touch my shoe soles. With your tongue only. Lick it and clean it. That's a way to be useful to me, at least. You are not very talented at it. Are you even good at anything? Come on. Focus. Clean. There might be more ladies' soles to clean if you get better at licking and cleaning.