I’ve been fantasizing about some potential evolutionary reasons for superfetation and prolonged pregnancy. An idea came to me while I was getting off in the shower, hands frantically rubbing myself to slickness.
What if you were a breeder, bred by someone who wasn’t supposed to have you? They just couldn’t resist your sweet clench when you ripened into an adult, fully responsible for your own unwitting actions. Your guardian had wanted to preserve your innocence for his own selfish reasons, but when he left you on your own for a year while he had to work abroad, he didn’t realize he was leaving you unguarded. You were unaware of the potential consequences of sex, of letting them come inside you bare.
As your belly swells with your litter, you are confused by the changes and ask the one who bred you for advice. Their eyes gleam with lust as they breed you all over again, even though they know it won’t take. They tell you that you’re fine, but not to tell anyone else what is happening or how you got so swollen and heavy. You’re told you’re just getting fat.
8 months in, you’re huge and waddling with your gravid womb. The babies inside are big and active, making it obvious to anyone who looks at you that you’re well and truly knocked up. As you are laying on the couch, hands pressed to the taut skin underneath your silky robe, vainly trying to get your belly to calm down. You’re still wondering what’s happening inside you… when your Daddy returns. Still standing in the doorway, bags in hand, he takes one look at you and sees red.
You clamber up as fast as your encumbered figure will allow, straightening with great effort against the heft of your roundness. You waddle to him as fast as you can, one hand supporting the vast underside of your womb and then throw your arms around him in a big hug. You feel strange with your torso turned to the side so that you can reach him. The angle presses your swell into his muscled abdomen in a striking contrast to your softness.
He reaches his arms around you and heaves you up into his arms, carrying you into his bedroom. You look around in confusion, having never been in here before. He deposits you on the center of his large bed, jostling the litter inside you. You groan and curl around your belly. He still hasn’t said anything.
As your belly calms, you keep stroking it gently and look up at him in question. “What’s going on? Why do you look angry? I’m so happy you’re back early! But why are we in here, Daddy?
His nostrils flare and instead of answering, he asks, “Who did this to you? Who did you let breed you?” He keeps staring at you intently, gaze inexorably drawn to where your soft hands are gently soothing your full womb. His face flushes in anger and arousal. Arousal at finally seeing you bred like you were always meant to be, anger at knowing that someone else snuck inside you and stole his breeding rights from him. You were intended to be his breeder and his alone, always full and happy to be growing his babies.
“What do you mean? Nobody bred me, Daddy. I’m just getting fat. Do you think I’m not pretty anymore?” You weren’t sure what to think about how active your belly was at this point, but you didn’t want to get in trouble, so you stuck to the line you’d been told to say months ago.
He starts ripping his clothes off, still breathing hard. “You’re perfect, baby, but someone definitely got their cock in your pretty little hole. You look like you should have been pushing that baby out weeks ago!” He prowls over you on the bed, tugging your skimpy robe open. The fabric falls away and your tender chest, massive belly, and sensitive groin are exposed to the cool air.
“What are you doing, Daddy?” You ask, eyes fixed on his swinging cock, drooling precum onto your plump thigh.
“I’m going to fix this, baby, and claim you like I should have before I left. That belly should be full of my baby, not whatever thief talked his way in between your legs.” He pressed your thighs open with his big, rough hands as he spoke. Eyes drifting from your round womb to your opening.
You cry out in surprise and pleasure when his lips suckle you, bringing blood to the surface and heating your skin. You feel yourself growing slick, the constant low-grade arousal of being so full flaring at his attentions. You thread your fingers in his hair, directing him where you want while his thick fingers stretch you out. When he’s satisfied, he slides up your body. Your belly keeps him from reaching you easily but he still manages to ravenously kiss you as his cock spreads you open farther than you ever thought possible. He’s so deep inside you that you feel the crown of his dick spread something tightly clenched inside of you open just a fraction.
He sits up on his knees, lifts you up and flips you around before slamming you down on his shaft again, thighs splayed open on either side of his spread knees. Your belly hangs down heavily and starts to bounce painfully as he thrusts into you from below. You whimper and he quickly moves a strong arm to support your gravid belly and the other to pinch your nipples.
“Ah! Ah! Daddy why? Ugh it feels so good but it’s so much! I can’t take it! I’m feeling… something is happening in me! Daddy please!!” You writhe on his cock as he holds you firmly seated, hole spread wide as he grinds into you and floods you with come.
“You’re mine! Your hole is mine, your womb is mine. I’m going to get you so pregnant, breed you so good and so full you’ll never look at another man.” He grits out the words as you spasm around him, coming hard and leaking from your nipples a bit, hardly noticing in your haze.
The next few months are filled with nearly constant breeding whenever you’re home together. You’ve only gotten bigger. There’s no denying that you are hugely pregnant and overdue by months and months.
“Why haven’t the babies come yet?” You pant to your Daddy as he comes back from the bathroom with a washcloth one day. You’re laying on your side, drenched in come, belly so big you can’t breathe when you lay on your back. You clutch yourself but come nowhere near the part of your belly that’s currently bulging out painfully with the head of one of the offspring inside you. He presses his hand into the bulge until the baby shifts into a more comfortable position.
As he wipes you down, he explains “Your first babies are waiting for ours to catch up. They all need to be born at the same time, so it’s safe. The older ones don’t keep growing as fast once you get pregnant again.”
What he doesn’t mention is that breeders are built this way to maximize the number of litters they have. The same person can’t knock them up while they’re already gravid, but a new one can succeed. To keep whichever man who has possession of the pregnant breeder when they give birth from snuffing out the offspring that don’t belong to them, the breeder stays pregnant with all litters until the babies are theoretically indistinguishable. This also maximizes the genetic diversity of their offspring, so breeders are predisposed to enjoying new partners while already bred and heavy.
What neither of you realize is that even though your second litter is almost ready to pop, a powerful friend of your Daddy’s from out of town will be visiting soon. Daddy owes him a big favor… and your womb is what he’ll want.
When he arrives, you think you’re as big as you can physically get, with six or seven full term and overdue babies stretching you out, almost two years pregnant. You will soon find out that you can get much, much bigger.
Luckily for you and your Daddy, your womb is very accommodating and subconsciously, you’ve never been happier than when you are stuck in bed, powerless to do anything but gestate.
Your Daddy’s friend breeds you well for a whole weekend while your daddy listens jealously from downstairs. You are a bit sad to see the big man go, as he had wonderfully talented hands. You’re even more dismayed when your Daddy is right and you keep growing even more pregnant. You can’t believe you have another nine months to go… again.
When you finally give birth, you push for days, cumming violently each time you crown. You swear off cock forever afterwards. Your belly flattens out and your tits swell with milk for all the babies. The powerful man takes a few to raise and the first man who bred you takes a few as well, as you’d eventually fessed up to your Daddy who had taken your virginity.
Three months later, you’ve already forgotten your promise to yourself and you’re moaning as your Daddy comes straight into your fertile womb.
You almost hope his friend wants to visit again when you’re almost ready to pop. You’re secretly, but not subtly, delighted when he arrives two weeks before you’re due to birth your next batch. You’re going to be well bred for a long, long time. Just the way you like it.
