You grin evilly down at the shivering human, who is very obviously terrified of you, and what you will do to him. Rightly so, you think. You snicker evilly, and lick your lips hungrilly. "Well, you are good human, but not good enough! You couldn't please me by cleaning my foot, so you will now nourish my foot, and all the rest of me!" You laugh cruelly at him, enjoying his futile struggles in your paw. Then without another word said, you bring him up to your muzzle, and open wide, letting him gaze within, and smell the horrible stench of your breath.
He screams loudly, desperate to get away, and not be devoured alive by you or anyone, just wanting to escape with his life.
But you don't have any intention of letting him do that, no intention at all. You carelessly toss him into your maw, just like all the other meals you have ever devoured alive. You feel him squirm and struggle on your tongue, thrashing around in desperation, trying to get out of your stinky maw, which reeks of death, decay, and rancid meat. You enjoy his squirms for a bit, before you lift up your tongue, and powerfully swallow, sending him into your gullet. You sigh in pleasure as you feel his squirming body sliding down your gullet, sliding into your belly, ontop of your digesting lunch. You rub your tummy happily, enjoying the feeling of his struggles within your putrid gut as you start working on him as well, soon to make him only another millimeter or so on your paunch, and a small addition to a later fart.