#hyperpreg

You’re a breeder for your pack, always carrying large litters. You have the ability to be bred multiple times in the same pregnancy. As each litter matures, you birth that brood while the rest stay in your full womb.

The pack alpha has complete instinctual control over your body and the offspring inside of you. Until now, that is a power that never impacted you. You are pregnant several times over, on the cusp of either birth or immobility, whichever comes first when the alpha decrees that the pack is in too much danger to risk new pups. You are not allowed to give birth.

The pups keep growing inside of you. They stretch you out and weigh you down. Quickly, you reach the point at which you can’t walk with a straight back. Instead, you waddle with both arms clutching at the underside of your overdue womb. You feel pressure in your pelvis but your body listens to your alpha and keeps your womb from dropping.

After some time, you lose the ability to walk at all. You have a rotating shift of attendants to help you get around. They’ll let you put your arm around their shoulders while they wrap muscular arms around your massive swell. Months into this, you are visited by your pack leader.

You’re on your bed, stroking your belly in a vain effort to calm the teeming of the now fully overdue sets of babies inside. You are also vainly attempting to stroke yourself to orgasm but are nearly in tears of frustration as you fail to reach.

Seeing your distress, your alpha comes inside and soothes your overstuffed womb. Even he can hardly reach halfway around. The pups calm at his command. He lowers his heads and suckles at you before dipping his head between your thighs to pleasure you.

Before long, you’ve come and come and come and are begging for more. Begging to give birth, begging for him to thrust himself inside you and fill you up even more. He rolls you onto your enormous belly, riling up the numerous offspring inside, as he kneels between your legs and spreads you open with his cock. You’re still gasping and grasping onto your womb as he begins fulfilling your request to fill you up.

You’re so incredibly pregnant that you can hardly move… but when his knot locks in place and his cum fills you up, ensuring that another litter will soon begin stretching you to colossal proportions… your tears are filled with arousal as much as shock.

First he gets pinned down and stuffed by a werewolf on their evening stroll. Spread wider than he's ever been by the werewolf's thick knot, unwillingly cumming again and again as it savagely thrusts into the most sensitive parts inside of him over and over. Leaving him bloated with its cum, and unknowingly already growing its litter in their womb.

As he begins to limp home an ethereal being offers comfort and a helping hand. The kind beings cool soothing touch calming him down and making him feel safe. He's brought to the beings abode where more beautiful people surround them, their soft voices lulling him into a relaxed state, comforting him as his belly gently begins to swell, their hands roaming each newly stretched inch of skin. Soon their hands explore lower, making him feel so good, and they're taking turns entering inside of him, cooing over him and encouraging him every time he cums. They kiss his forehead and tell him he's already doing such a good job growing big and round for them. Eventually he begins to come to his senses, and insists he needs to go home. Then he stumbles out of the trees about an hour before sunrise. When he checks his phone it's 3 months later, and it's abundantly clear he's just entered the second trimester with both a litter of werewolf pups and a litter of faelings in his swollen womb.

Stumbling home, adjusting to the weight of two separate litters in his belly, he startles when he spots a creature, clearly alien in nature. He's scared for a moment, but then sees that the alien is clearly in distress, its belly almost as big and swollen as his and appears to be cramping something fierce. He winces and places a hand over his own womb in sympathy. Suddenly the alien's gaze locks onto him, and before he can even begin to run, the alien is upon him, much faster than it ought to be as weighed down as it is. The alien enters him roughly, needily, and soon to his horror he understands why, as an egg about the size of a tennis ball moves through the alien's ovipositor and forces its way into his already crowded womb. The alien makes a guttural screech that sounds like relief as they continue to pulsate inside of him, depositing its long overdue clutch inside of a clearly fertile incubator. By the time the alien is done, abandoning him now that its needs have been met, his belly is twice as big as before.

He laboriously shuffles to the nearest doctors office he can find, his back already killing him from such a sudden change in weight and balance, and he arrives as they open panting and out of breath. The doctor ushers him in straight away to their exam room, lying through their teeth when they say they'll help him. The mad scientist he was unlucky enough to find so quickly, marvels to themselves at his fertile womb, and decides he's the perfect test subject for their latest experiment. They make a big show of appearing kind and helpful, while delighting in every moan of pain and discomfort as they poke and prod at his gravid form. While checking between his legs, insisting on making sure he didn't sustain any injury, they apply a ‘soothing gel’ deep inside of him, the beginnings of their newest monstrous creation. And just for fun, before he leaves they give him a couple of ‘preventative vaccines,’ one of which makes sure that he stays hyper fertile, and the other which ensures that every new offspring added to his belly grows to catch up to be as far along as the rest. It's not long after he waddles out of the doctors office that he's whining in discomfort and dismay as his belly begins to rapidly swell again, the ‘vaccine’ kicking in, causing the ‘soothing gel’ to rapidly approach the second trimester as well.

So distracted on his way home by his already overcrowded womb, wondering with dawning horror how much bigger he's going to get, he fails to realize he's crossing under a bridge. Specifically a troll's bridge. Who, upon learning our poor soul can't find his wallet, gleefully insists on using him like a flesh light as an alternative form of payment. The troll finds it amusing that his belly has become so cumbersome that they can barely hold him in their one hand. And they laugh uproariously as he moans and sobs and cums as his sensitive belly, and frankly his now swelling chest, bounces as they harshly drag him up and down their cock. But their greatest delight is after they've flooded his insides with their cum, settling back with him still sitting on their cock, so long and thick they've burst through his cervix and can feel the first stirrings of the litters inside of him around the head of his cock. Not only can they feel their own half-troll bastard growing in the guy's womb as well, they get to watch as he futilely tries to get off their cock, begging for help that won't come as, already too heavy and exhausted to lift themself off, even before his belly began to visibly swell again, only succeeding in clumsily riding the troll's cock rather than escaping them. By the time he's manages to leave, he has two troll bastards weighing down his womb, and it's already afternoon.

Trying to take a short cut home, desperate to find safety and comfort, he runs into a rowdy gang of goblins that surround him and delight in teasing his helpless form. Slapping his belly, his cum-stained thighs, jumping up in competition to see who can slap his burgeoning tits. They jeer at every yelp of pain, every cry for help, every plea for kindness. It's easy for them to overrun him, thrusting into him, sometimes more than one at a time, cheering whenever his belly pulsates and grows, betting each other money on where the next stretch marks will be, which goblin will make him cum, whether he's going to beg them to stop or to keep going. They make sure to brand his ass with the gang's symbol as their leader cums into him and his belly swells again. The other goblins tease him by rutting against his belly, abusing his stretched out angry looking belly button, pulling his head back and sticking their fingers in his mouth. Eventually they get tired and bored, going back to their hide-out to eat a big meal and take a long nap, leaving him covered in drying goblin cum, legs shaking from overstimulation and the weight of his womb as he tries to continue his journey, now even more desperate to get home so he can rest.

By the time he manages to painfully waddle home, his landlord, a dragon, is already there waiting for him, demanding the last three months of rent. They have no sympathy for the guy's sob story, or their painfully swollen womb riddled with angry looking stretch marks. They decide to take the payment another way, and since he's decided to let other creatures use his womb for free, it only makes sense that he should use his fertile womb to pay for his late rent. The dragon mercilessly pins him on his hands and knees, ignoring his cries of pain as his already overtaxed belly is crushed into the ground, and thrusts into him right there in his front yard. Uncaring for their tenants comfort or well-being they take their pleasure and deposit three eggs in his belly, one for each late month. With a roar that shakes nearby buildings they cum inside of him, ensuring their eggs will take. They growl a warning that in the future this is how late payments will be collected, and fly off, leaving him there crying from the pain of his belly swelling yet again.

yes. this is good....

(hyper ver. under the cut)

"um i forgot to mention– ohhhh," you try to explain as a growth spurt hits, your belly pushing through the cloth gown they gave you for the trial. your hands fly to your stomach, in awe of the rapid transformation as a wave of pleasure and pain shoots through you. your boobs ache as they grow alongside your expanding belly, straining against the bra you left on. your fingers shake as you work to unclip the tight fabric, and you remove your bra just in time for your boobs to plump up another cup size.

"my family has a history of multiples," you finally manage to get out, laying back on the hospital bed trying to catch your breath.

"i'll say," one of the nurses mutters, saying something about running to get more medicines for the IV drip attached to your arm, injecting you with nutrients as well as the rapid growth serum.

you moan as your belly expands, your hips cutting into the lining of your panties. everything is growing rapidly, from your ass to your tits to your ballooning belly.

"feeling okay?" a doctor asks, holding a clipboard.

you nod as you feel a gush of wetness flow south. you've never felt so horny in your life.

"the serum also has an aphrodisiac element to curb the pain of the rapid growth. we just increased your formula considering you're growing multiples, so you might start feeling those side effects," the doctor says. "pushing into the second trimester now."

only the second trimester? you look eight months pregnant with a single baby currently. the heft of your belly is weighing you down, and you struggle to try and sit up, letting the continuously expanding bulge rest between your stretched out legs.

you huff from the effort, resting your hands on your back to stretch. as you arch your back, you look down, noticing just how large your midsection has become.

"you'll start to feel some movement in a moment," a nurse says, and you watch in morbid fascination as your belly begins contorting, the offspring inside you beginning to jostle for room as they grow.

"oh god," you touch each little movement with your hands, feeling another rush of pleasure hit you in your core. you try to reach down, but between your expansive belly and fat thighs you can't make contact with your clit or anything for that matter. "ugh, i'm so full"

"nearly at the third trimester, this is when the babies grow the most, and they look like they are measuring in a higher percentile than most," says a doctor.

god. you're so full of so many babies and they are all so large. leave it up to you to be the biggest trial of this experiment.

the room is a buzz with anticipation as you groan through another growth spurt, getting impossibly bigger.

your boobs rest on your shelf of a belly, pushed up into your face. they ache like hell and you hear a nurse mention lactation starting soon.

the movement is insane. you feel so full of babies, so transformed within just the last thirty minutes. the children in your womb jostle against each over and your belly is so big it seems to move on its own, leaving you moaning as you move with it.

you can't reach your arms around yourself anymore but you can feel your belly button straining against the occupants within you.

"alright that's time," a doctor informs you, "you should be full term. now we just have to wait for your water to break."

"how long until that?" as much as you're uncomfortable and fuller than ever, you're also immensely enjoying the feeling of creating life and letting it grow within you.

"hmm anywhere between two hours and two weeks. part of the trial."

"what?!" you were fine with this when it was only a brief pregnancy but the idea that you might be stuck this big for so long makes you realize just how immobile you've become. you probably can't even walk at the moment. your belly towers in front of you, full of movement and life. your boobs have finally started to leak. you couldn't even lean back without being crushed by your own body if you wanted to.

"it's all part of the trial! will be interesting to see how long it takes with multiples. i'll be back."

no one knows when, or if, i will ever give birth. my womb is so full, so swollen it dominates my body. my tits rest heavy over the table of my belly. it starts at my sternum and expanding outward into an obscene, heavy dome. even my sides are round, pulled taut by the mass incubating inside of me. even a year after the ritual that impregnated me, i'm still riding high and tight as the demon continues to grow. several adults could fit in my belly if they curled up. my skin is so stretched, so taut it's shiny. my stretchmarks are valleys, my veins snaking just beneath the surface of my thin skin. my bellybutton has long been out of sight and out of reach. my womb takes up so much space my back is always arched, straining underneath the weight of it. whatever dark magic they cast during the ritual has changed me, keeping me from popping. maybe that's what keeps me in this state. pregnant with no end in sight.

Then they realize it doesn’t end at nine months.

The full term baby inside continues to grow undeterred at human pace. The baby just won’t come out until their body deems it time, regardless of how big it gets.