POV vore – you and the hyena
By Strega

Got to get out. Got to get out of this cell, before the guards come back. Fortunately, you have a plan.
It's just you and your pet hyena Shiva, who you recently bought at the bazaar. Shiva is a shaggy, spotty beast a little bigger than you are. The dealer said she's a girl, but she sure looks like a male to you. "Hyenas are weird," the dealer said. "Don't worry about it."
Shiva knows tricks.  She's remarkably cute for a 180-pound spotty carnivore. She can sit, roll over, beg, even fetch items. Good for distracting people while you filch stuff. She has amazingly strong jaws. The dealer said she's a great body disposal. Can digest bones and everything.
Not that you ever need to dispose of bodies. You're just a thief. That was enough to land you in this cell. Now to get out before the judge orders them to cut one of your hands off or, almost as bad, decides that twenty years of breaking rocks is a reasonable punishment. It was just bad luck that your latest mark turned out to be some sort of noble.
"Come, Shiva." She perks up and trots over. The cell is only ten by ten feet. It doesn't take long to unbuckle the muzzle they put on her, or to retrieve the lockpick you hid by sticking a lump of gum in her tail fur. The only problem is your hands are manacled close together so you can't quite free them. 
You could pick the cell door, and right outside you see a floor plate that has to lead to the sewers. You'll have to climb, and you can't climb very well with manacled hands. Time for one of Shiva's tricks.
"C'mon Shiva. Bite through the chains." You present your manacled hands to her. You've had her chew through ropes before. She may crack a tooth, but the chains are soft iron. She can handle that, right?
She considers your hands for a moment, prick-eared and alert. Then she opens her mouth and engulfs them both.
"What? Watch it, Shiva!" Her bone-cracking side teeth clamp down on your hands. The same teeth you wanted biting through the chains. At least she doesn't crush them. Tugging makes your manacles catch on her fangs. You push, and with a squelch your hands push past her teeth into the slimy gullet beyond.
You've seen Shiva eat plenty of times. She always tears things apart. Never swallows anything bigger than a rat. It's a surprise than her throat accommodates your hands so easily. It's also not relevant. She can't chew through the chains this way!
You tug, but now your manacles catch on her back teeth. With a grimace you push your hands deeper. She'll gag and then you can start this mess over.
But Shiva doesn't gag. As you push, she looks up alertly, as though accepting a command, and steps forward. Your hands slither deeper and you reflexively try to yank them out, her teeth be damned. But her jaws lock your elbows straight and the wall is right behind your shoulders. There's no way to retreat and her throat suddenly grips down. Her tongue adds a shove and suddenly her nose is against your throat. She simply stepped forward and swallowed your arms in one long slide.
"Shiva! Let go!" You try to work your arms loose, but the slippery walls of her gullet hold them together as firmly as if they were bound in ropes.  Your shoulders are firmly against the cold cell wall as Shiva reaches out her forepaws. One goes behind your head, the other below your arm, and she pulls you into her maw. 
As you lean forward her jaws creak open far wider than is needed for just your arms. Suddenly you remember what the vendor said when he sold her to you. Body disposal. She's trained to dispose of bodies!
"Stop!" But it's too late. Your head is already in her jaws, and her tongue gathers itself under your chin. Fangs scrap your skull and Shiva swallows. Slimy flesh slides over your cheeks as your face follows your arms down her throat. 
You protest, tell her to stop. Even to you it only sounds like a mumble. Your whole head is in her gullet, sliding deeper. A bulge of face moves through her neckfur. You feel the brush of fur as she puts her forepaws against the wall and pushes her maw further over you. You're sitting on a stone floor with your back against the wall. There's no way to squirm free. Nowhere to go but down her throat. Muscular contractions squeeze you still deeper as she swallows.
She's just confused. Maybe her previous owner did use her for body disposal and presenting her with a set of tied up hands is her signal to start eating.  Confused or not, she's well on her way to eating you whole. That it is all a misunderstanding is a small consolation.
With a shove of her jaws she's to your hips. Thick slime on the walls of her gullet lubricates you for easy swallowing. Other than the scrape of fangs, being eaten is almost painless. You have much bigger problems than a few scratches. Your hands push through a muscular constriction into the fleshy pocket of her stomach. Your face follows. What happens next is no surprise.
You've seen Shiva crunch up and swallow bones. Seen hyena poop white with the digested powder. You know how strong her digestive juices are. Your skin is already burning. She only has you half swallowed and she's already starting to digest you.
You try to kick her away. It's the only resistance you can muster. You manage one solid hit before she sits back. With a heave of her head your ass is in her mouth. Her gullet is a long slick slide to the gurgling place your upper body already occupies. Shiva tosses her head. Bolts you deeper. With a heavy gulp her fangs are to your knees. There's nothing left of you but a set of kicking feet. Soon there won't even be that.
Body disposal. She's disposing of yours. Is it bad training to eat your owner?  Or did she think you wanted her to do it? The result is the same. Shiva's head bobs as she swallows. She gets her jaws around your bare feet, tenses, and gulps again. Suddenly her mouth is empty. The bulge in her neck changes shape and then is gone as you slide heavily down her throat, manacles, loincloth and all.
It is miserably hot in her stomach. That is the least of your problems. The muscles of her throat expel you into a fleshy hell of caustic slime and utter darkness. You're forced to curl up, squeezed nearly into immobility by the flesh and fur that stretches to accommodate her meal. Shiva was an awkward looking creature at the best of times, long of neck, hunchbacked, taller in the front than in the back. 
That odd posture only gets odder as the great bulge of swallowed man distends her midsection. You feel her shift her paws awkwardly, trying to get comfortable with the massive lump you make. No matter how she tries to stand, her vast gut drags the ground. She gives up and rolls onto her back, allowing her swollen belly to bulge out to the sides. 
You're still alive. For now. Shiva swallowed a lot of air with her meal and you squirm, trying to use your remaining strength. If you cause enough of an uproar, maybe she'll cough you up.
You are in the strange situation of being stuffed into a predator little larger than you are. She is so swollen than you can feel her pelvis, the lumpy spine, the paws draped over her distended middle. A slow pulse drums through the fleshy walls. She is calm. Relaxed. Why wouldn't she be?  She's in a nice safe place and just had a good meal. All the strenuous work is done. Now she can just let her stomach do its job.
You can hear her breathing. Hear her body creak and groan as it gets used to early her own weight in meat and bone suddenly occupying her stomach. It's almost relaxing to hear. Less so is the slowly growing gurgle and churn. Acids are flowing in and the stomach walls ripple, spreading them over you. The loincloth, tough linen, offers a moment's protection for your bits. The rest of you is not so lucky. You are sure that part of the slippery feeling you sense as you rub against yourself isn't just mucus, it's your skin beginning to soften. 
The loincloth will survive, mostly likely making its way all the way through her bowels intact. The manacles will get coughed up. They're too bulky to take that trip. Being coughed up sounds mighty good right now. You'd rather get out the manacle way than the loincloth way. 
Digesting a whole human is a lot of work. Five minutes ago you'd never have imagined she could do it. But five minutes ago you would have said she couldn't begin to swallow you whole, yet here you are.  You're pretty sure her stomach can handle you just fine.  
Voices! So thinly stretched is her belly fur that you hear the guards come in. One is laughing. You can make out most of what they are saying.
"Neat trick," one chuckles.
"Does he (something something) out?", replies the other.
"Nah," says the first.  "Not the first time (something) fooled us.  Let him stew in there, (something) out eventually."
They think it is a trick! They think you want them to let Shiva go, or at least ignore her since she's eaten you. Then she'll cough you up and escape with her master. They think you have some magic to keep from suffocating or being digested.
But you don't. The stomach acids are genuinely painful now and the air is getting foul.  You have to let them know what's going on.
You open you mouth but all that comes out is a grunt. One of the guards puts his foot on Shiva's belly and kneads it. You hear her cackle, a happy hyena sound. The belly rub feels good. It is not so good for you. The guard put his foot right on the bulge of you face.
By the time you recover from that the voices are faint. You hear them lock the cell door, even. Taking no chances. They really think it's a trick.
There is no one left to appeal to but your pet. "Shiva? Shiva?"
You imagine her ears pricking up, the look of loyal obedience on her face. Why, yes master. I'll cough you up right now. I even picked the guard's pocket and his keys are in my mouth.
It's a nice scenario. What you get instead is a long belch as Shiva vents the air that went down with her meal. There's an awful lot of acid in here now. Not so much air.
"Shiva?" Darkness, and gurgling. There's a hole in the floor in one corner of the cell, a rude toilet. Shiva is trained to use those. Your clever plan was to escape through the city sewers. And what do you know, that is exactly what will happen. It's just that you'll look a bit different when you leave the cell than when you entered.