Applebloom was sitting with you when she smelled the musk of Rarity's balls. She moaned and her eyes fluttered. When they opened again, they were clouded and lustful.
"Mmm," she said. "That's Rarity's cum." Her tongue slipped from her mouth and swiped over her lips. "You smell her? She must be having a good day. Her balls must be the size of my head by now!"
Applebloom's belly swelled.
"Mmmm. I bet they feel soooo good."
Applebloom's tits swelled, too.
"Hey, wanna go check it out?" Applebloom asked, her words slurring slightly.
"I'm good, thanks."
"Nooo," Applebloom said, her voice husky. "Come on. You can't just sit here while she's doing all that! That's rude."
Applebloom stood and pulled you up. Even before her body finished growing, she was tugging you along, eager to get to her friend and her swollen balls.
"Oh," she said, her pussy swelling larger, estrus gushing from her folds. She was about to give birth. "Oh, yeah. That feels so good."
You were pulled along as Applebloom's body blossomed. She had been cute before, but now her curves were truly spectacular, her breasts rivaling those of even the largest mare and her belly so large that a foal was surely on its way.
"Oh, that's it, honey," Applebloom said, her voice soft.
"Huh?"
"You can come out now, sweetie. Mommy's gonna have some help."
You looked down, but the foal was already being pushed out of Applebloom's vagina.
"Ohhhh." The little unicorn girl slid from her mother's cunt, her body already big enough to be a grown filly. Her dick, too, was large, and it was only a few seconds before it started spewing cum.
"Oh, oh! What a good girl you are!" Applebloom moaned. "Gonna take after momma!"
"Gonna take after you, too, mama," the filly said, rubbing her fat dick between Applebloom's plump asscheeks.
"Ah, good, good..."
Applebloom was still pushing more. A second foal, this one a cuter filly with a matching cock, popped out with a spurt of juice. And another. And another. The ground grew slippery with the mess.
"Ohhhh," Applebloom moaned. "Oh, girls, don't stop. Give mama more."
The girls, as if in a trance, obliged. They shoved their cocks into their mother, who kept on pushing them out. You couldn't keep track of how many foals Applebloom had. How many foals could one mare make?
One of the foals looks to you. She looks exactly like Applebloom, only younger, though she is still incredibly well endowed. As she stares at you she starts huffing and panting, becoming increasingly aroused. Her cock swells and her balls drop, fuller, fatter and heavier. Her crotchboobs fatten and fill plumper too. Even her ass and hips are expanding as the young clone approaches you. She pushes her nose into your crotch and sniffs hard. Her eyes glaze over and a thin line of drool dribbles from her lips.
"You smell good," the Applebloom-clone says, "I want to fuck you."
"I think I'll fuck you instead," you reply.
She looks surprised for a second, then smiles. "Okay!" she says happily. "Can I fuck your ass?"
You nod, and she turns around, wiggling her butt at you. She has a very large and meaty ass, and her balls are bigger than her head, so large that they touch the ground as she kneels, with a thick tube of cockmeat hanging down between them. Her ass is also very large, and you can barely see her tiny little pussy under it. She looks back at you impatiently, and you move forward and push your cock inside her tight little asshole. You feel her butthole growing as she clenches around you.
You grab hold of the clone's wide hips and begin to thrust into her, feeling your dick swell and throb inside her ass. She moans as she feels you filling her up, her own cock pulsing in time to your thrusts. You keep fucking her for several minutes, but eventually you can't hold out any longer and you cum inside her. Her ass clenches tightly around your dick as you fill her with your seed, and her own cock shoots a huge load onto the ground, spraying everywhere with thick ropes of cum. You pull out, and her ass slowly closes up again, a thin trickle of cum running down her thigh.
She turns around, and you see that her face is flushed and sweaty, her eyes half-lidded with lust. Her throat bulges, and you see another young clone pushing up her gullet. You realize that she's pregnant with a clone of herself.
You watch as she gives birth, and then as her belly grows again. This clone is different; instead of being just like her, it looks a lot like Applebloom, with a big belly and swollen breasts. The clone starts to nurse, and her belly grows even larger.
The Applebloom clone looks up at you and smiles. "I want to fuck you too," she says.
"Okay," you say, and turn around to let her take your ass.
The clone pushes her cock into your ass and begins to fuck you hard, her belly rubbing against your back. As she thrusts in and out of you, you can feel her breasts growing against your back, and her belly expanding as she pumps you full of her milk. Your own cock swells and throbs as she fucks you, and you can feel her thick pre-cum leaking down your thighs.
The clone's belly grows bigger and bigger as she keeps pumping you full of her milk, her cock swelling even thicker inside you. Eventually you can't take it anymore and you cum, spraying your seed onto the ground. The clone cums too, filling you with her milk and cum, and you can feel your own belly growing as she pumps you full of her babies.
You look up, and you can see that there are dozens of clones now, each one pregnant with a clone of their mother. As you watch, they all give birth at once, filling the air with a chorus of moans and squeals as they fill the air with their seed.
***
A young fox girl is watching the cartoon show of Applebloom, mesmerized by what she is seeing. She has heard the rumors, but seeing it with her own eyes is another thing entirely. She can't tear her eyes away from the screen. The scene shows Applebloom in a field, surrounded by a dozen or so other girls who are all looking at her with lust in their eyes. They all have big, fat cocks and huge balls hanging between their legs, and Applebloom's belly is swollen with their offspring. The girls are all fucking Applebloom at the same time, filling her with their seed, and her belly is growing larger and larger as they pump her full.
The fox girl watches as Applebloom gives birth to a litter of little ponies, each one a copy of their mother. She watches as the girls all fuck Applebloom again, filling her with their seed once more. The sight begins to corrupt her, causing her own young belly to plump fatter and swell with life. She reaches down with one hand to rub her belly, feeling it grow. She is only a child herself, but she already knows what she wants.
She wants to be like Applebloom.
She wants to be fucked and filled and bred like Applebloom.
She wants to be surrounded by girls with big cocks and huge balls, who will fuck her and fill her and make her belly swell with their children.
As she rubs her belly, she can feel her cock growing. It is not nearly as large as the cocks she saw on the television, but it is still big for her small frame. It throbs and swells, pushing up against the front of her panties. She reaches down and strokes it, feeling her balls growing heavier.
Applebloom.
Her name is Applebloom.
She moans as she strokes her cock, imagining the girls from the TV show filling her up. Her belly grows larger, and she feels the urge to give birth. She pushes, and a small fox pup slips out of her pussy. It is barely bigger than the cock that made it, and it is still attached to her womb by a thick umbilical cord. She strokes her cock harder, and another pup slides out, followed by another. Soon there are half a dozen pups all squirming around her feet, and her belly is still growing larger.
She can feel her pussy stretching wide as another pup pushes its way out. The feeling is incredible, and she can't help but moan as she keeps stroking her cock. The pup slides out of her pussy, and she feels another one pressing against the entrance. She strokes her cock faster, and the pup slips out, followed by another. Soon she is pushing out pups almost faster than her cock can keep up with, and her belly is so swollen that she can barely stand.
Finally, the last pup slips out of her pussy, and her belly finally stops growing. She can feel the afterglow of her orgasm running through her body, and she collapses to the ground in a heap. The pups are all squirming around her feet, and she reaches down to stroke them.