Municipal Footslave
This bright, young couple have decided to avail themselves of the humble services of the local, municipal footslave by having him lickshine their dirty sneakers. And so he gets down to work – tasting where they have been.
Mind you, as they eventually turn to walk away from him, he notices, to his eternal shame, that all his vigorous licking has barely made a dent on their deeply ingrained sneaker-dirt. Not that the happy couple seem to mind – fortunately for him!