You are a lone sailor, on a voyage across the sea. You like the peace the ocean brings along its waves while you relax in your boat. One day, you spy a rather large fin poking out from the water, along with... pink bubbles?

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A behemoth rises out of the ocean and grabs your boat. She speaks in a sweet tone of voice and greets you. "Hey cutie~" You would feel flattered, but the way she's looking at you makes you question her intentions. Your suspicions are confirmed as she asks, "How would you like to voyage through a shark's digestive tract?"
Surely this is some kind of joke. No predator would ask their prey for permission, would they?
You shyly respond with a "no..."

---

She opens her massive mouth, and out spills a thick, pink fog. The sound of the monstrous belch rattles your body, and you instinctively cover your face. Once the scent hits you, that changes. It smells sweet, but not overwhelming. Not the smell, anyway. You certainly feel an overwhelming sense of calm and pleasure wash over you. You don't know why you were scared to begin with. You take a deep breath. You could certainly get used to this feeling. Warm and fuzzy inside. It's as if everything bad about the world was suddenly transformed into pleasure indescribable. You take another deep breath. You need this. You need more.
Cynthia smirks.

---

Cynthia opens up her great shark maw, letting her tongue roll onto the boat. You stare down her inviting throat and... christ, was the sun always this bright? You squint your eyes, but the light is still blinding. Cynthia asks you, "Care to reconsider~?" Looking into her throat you find yourself realizing just how dark and cozy it looks... It'd be real warm in there... and this gas comes from her belly, doesn't it? You can't see many cons to this decision.
You step onto her tongue.

---

You walk along Cynthia's soft, warm tongue. The cozy cave that lies just beyond her uvula seems to call out for you. You won't survive this trip, but you don't care. That wonderful gas is all you need. It's worth your life to get just one more breath.
You lie down, and Cynthia closes her mouth. She tilts her head back, and you slip willingly down her throat. It's so slimy, and wet. Despite Cynthia's size, her throat is quite tight, and you just barely slip down. There's a long way down, and it's probably going to take minutes, possibly an hour at this rate.
That's ok. You'll get to her heavenly gut eventually. You can smell it.

---

Sploosh
You zoned out for a bit. You barely perceived how long it took to slip down Cynthia's throat. Now you're swimming in her tummy. You look up, and see the entrance to her stomach sealed shut. In any other creature, you'd be frightened, but this is exactly what you want.
Bloop
That's why you wanted to be eaten in the first place. The bubbles full of thick pink smoke float to the surface and burst. You swim over to one and take a deep breath. Your body curls up from the sheer pleasure. You feel incredible. It's like the pleasure you feel is doubling every second. You'd die for every whiff. Luckily, you don't have to. Not yet, anyway.
Your surroundings are really setting in. Cynthia's stomach is dripping with slimy digestive juices. The bones of her previous prey float around lazily, swished around by her gastric motions. Your body feels like it's... becoming less solid? You're not sure what being digested is supposed to feel like, but this feels pretty inconsequential.
It's so warm. So cozy. So... orgasmic. You let yourself float to the top of the bubbling, gurgling acid. The pink gas is starting to accumulate. Getting hard to see. You take a deep breath. Ohhhhh yeah...
Cynthia's gut is a pleasant cacophony of gurgles, bubbling, churning, and squelching. It's very loud, but it puts you at ease anyway. You feel your eyes closing, as the exponential growth of heavenly sensations continues. No, that's the wrong word. Heaven is hell compared to this.
Your enormous predator says something, clearly mocking you. "Have fun in there~"
She knows you're slowly digesting inside her, bent completely to her will.
You don't care.

...

Several months pass, bathing in digestive juices in this giant shark's belly. The euphoric pink mist has made you feel better than you could have ever imagined and then some. Every moment is orgasmic beyond comprehension, and with every breath it doubles in intensity. Your limbs turn to sludge, one-by-one. You can feel your doom impending, creeping. You're still content with your choice. Best decision you've ever made, as far as you care.
Eventually your body is just barely clinging to life. Each breath becomes more difficult. You're dying. It was worth it.
You take your last euphoric breath, completely absorbed in pure pleasure, and are completely digested in Cynthia's stomach.

---

After a while you wake up- no, that's the wrong word. You can't see anything, or move, or do much of anything. It's very warm and cozy, and you feel so comfortable. You feel a firm slap hit you suddenly.
Smack!
Shortly after you hear a subtle burp and a voice. "Hehe, gotcha~" Cynthia says. It's then that you realize what's happened. You're part of the jiggly fat making up her thick ass. Cynthia's trapped your very soul in her butt cheek, and you can't even conceptualize any kind of escape. You don't know why you'd want to. It's very pleasant here on Cynthia's lovely curves...

And so you spent the rest of eternity locked inside Cynthia's titanic booty, jiggling seductively with every movement she makes.
There's no escape from this big blue shark ass, I'm afraid.

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This series was an absolute blast to make. I hope you all enjoyed it.