Image imported from derpibooru 
Original Description:
 
Shortly afterwards, the plane pony, a bit awkwardly, managed to put you on top of the tongue again, you were panting a little, the constant and lovely toying of the tongue and mouth exhausting you more than you would’ve expected, but you didn’t mind at all, it was wonderful for you, and you would’ve loved to stay hours like that, but of course you weren’t planning to do so
 
Though, before you realized what the plone’s was going to do, the tongue suddenly went upwards, your body being tightly squeezed and pressed against the mouth’s roof, only your head and arms sticking out, it kept on tightly squishing your tiny figure against the roof, action which made you do a little purring and some equine whinnies at the feeling.
 
The tongue that pressed on you starting to move back and forth, grinding you against the mouth’s roof, your tiny weight being nothing for the tongue that effortlessly moved you around, you smiled awkwardly and happily, letting out little squees of enjoyment as your fur was soaked by the saliva, the tongue moving forward, now completely covering your head and hooves, then squishing you again, but your whole body
 
After a little while of toying and pressing you, the tongue you were laying on gently deposited you in the row of teeth, your body being aligned with them. You idly wondered what the plane pony was about to do, before the teeth under your figure started moving upwards, gently squeezing you again, but this time between her teeth, the pressure increasing more and more as the teeth squished your body more, you couldn’t help but purr instinctively and relax at the feeling, it kind of felt like a massage, but even better. The teeth meanwhile kept on grinding and chewing your tiny body gently, you idly imagined how the plane pony felt, embarrassed and worried was your guess, and, judging by how careful yet perfectly she nommed you, you might aswell be right.
 
Air Liner kept doing this for some time, the teeth squishing your body; you couldn’t help but forget of all your troubles as that deep tissue massage of being squished between teeth relaxed you, your hoof gently placed on the tongue that was close to you in case something bad happened.
 
After a little while of chewing and grinding you, at a certain point even doing a rather silly belly rubbing with her rounded canine, you felt how she raised her head a little, the gravity suddenly shifting, towards the throat, you blushed deeper as you knew that she tilted her head upwards, your body slowly but surely motioning towards the dark and wet esophagus.
 
Water came to your back, pushing you forward, towards the throat, the tongue under you pushing to the palate. Then you saw the throat starting to open, before you had any idea what happened it went completely dark, as you fell head first into the throat, the powerful yet gentle walls of flesh gripping and tugging you, squishing your tiny, green body, soon, another loud gulp was heard, and a wave of saliva soaked you even more than you thought it could, now your body was completely on the esophagus, squeezed tightly in all directions.
 
You purred and squealed as the fleshy tube contracted upon you like bands, your entire figure being squished nicely, while it was tight, extremely tight, it was still gentle, and you didn’t feel hurt… actually, you got hit by the realization that you could breathe… somehow…
 
Then, suddenly, the fleshy wall that was facing you pressed you tighter than you would’ve though, squeezing your figure against the other wall, you imagined that the plane pony was pressing the bulge on her neck with her own hoof, that was the only explanation it came to your head as you let out a little squee of delight, the pressure massaging every part of your body.