The Origins of an Apple's Blossem

by LegionofPony

Rating: mature
Tags: Slice of Life, Romance
Length: 10730

Apple Bloom starts to wonder who her real parents are after tests following a freak accident reveals her genetics aren't the same as her 'parent's'.

NOTE: This is basically an 'open beta' of a story, and as such nothing is finished for sure. Things will likely change and be improved, so please don't be too harsh.

~

After a freak potion-related accident, Apple Bloom has some tests done on her in the hospital and learns from a blood test that her genetics are different then her alleged parents. Ever curious, Apple Bloom then listens in to one of her brother and sister's conversation to try and learn who her true parents are. What she finds out may surprise her.

~ ~ ~

This story WILL contain NSFW dialogue, including at least one graphic sex scene and discussions thereof, as well as a very sensitive social issue [spoiler](incest)[/spoiler].

Credits:

Original idea for this story comes from the second chapter of my other (NSFW) story The Destiny of a Forgotten Goddess. SPOILER WARNING for this story if you read that one first.

Further inspiration and original baseline of this expansion is by Lunar guard 117, and I'm simply building on it. Thanks for that, Lunar Guard!

Published 1970-01-01 00:00:00 UTC
Last updated 2015-07-15 21:39:14 UTC

The Accident

“Consarn it Applebloom! Why’d y’ have to go ‘n’ do something so stupid as that?!” Applejack said in her panic as she reached down to check on the small yellow-coated and red-maned filly she’d named – and  upon noticing after she'd collapsed that she was not moving, totally limp, and only shallowly breathing, reached down and draped the filly across her own back.

Applejack started galloping as soon as she picked the unconscious filly up, heading towards Ponyville as she was followed closely by Apple Bloom’s two friends, Sweetie Belle and Scootaloo, who had been there when it had happened.

“I swear she did it on her own!” Scootaloo said in her tomboyish accent, barely matching pace with the panicked Applejack galloping full-throttle towards Ponyville General Hospital by flapping her wings rapidly - a quiet flittering sound coming from the rate of her flapping.

“Is she gonna be…” Sweetie Belle asked before her voice cracked and broke mid-sentence, a quiet sob following. She struggled to keep up with the other two and see where they were going through tear-blurred vision, clearly very concerned about her friend's safety.

“Ahm sure she’ll be fine - she’s an Apple af’er all, an’ there ain’t no tougher family in Equestria then us!” Applejack said with pride - but the quiver in her voice at the end showed that even she had doubts about Apple Bloom’s condition, despite her boisterous statement.

It was a fairly long distance from Sweet Apple Acres to Ponyville, but Applejack knew she could run there in a matter of minutes, likely even less with the adrenaline pumping through her caused by the panic at what her little sister’s situation could be.

“Why’d ya have to do that Apple Bloom…?” Applejack asked, her vision growing blurred as tears came to her own eyes, making seeing the road ahead a bit of a challenge as she galloped on at full-speed towards town.

~

The quartet arrived at Ponyville Hospital about five minutes after Applejack had picked Apple Bloom up and started galloping, all but Apple Bloom panting from the exertion of running there.

“Doc...! Mah sister...needs help!” Applejack yelled out between pants, getting a sharp look from the nurse at the receptionist desk.

The look on the nurse’s face quickly faded from annoyance to one of concern as she looked at the still-unmoving form of Apple Bloom on Applejack’s back, noticing the light-gray tone of her coat instead of its usual bright-yellow.

“What happened?” the nurse asked, quickly ushering Applejack into an examination room and indicating for her to lay Apple Bloom onto the table.

“Well, Ah don’t really know. All Ah saw was Apple Bloom gulpin’ down somethin’ from a potion bottle that was bubblin’, then I saw her get a shocked look on her face ‘fore she went grey and collapsed. Y‘all can probably get more info from these‘uns.” Applejack waved a hoof at Scootaloo and Sweetie Belle, making both cower slightly as the nurse then looked over to them, clearly hoping for more information.

“L-like I said earlier, she did it on her own! I told her not to, but she’s so stubborn…” Scootaloo said, on the verge of tears as she struggled to keep them back.

“I…I…” Sweetie Belle stammered, trying to speak but unable to as her tears kept flowing, her emotional state making her mute.

“Well, I’m going to draw blood and take it to our lab to be examined. Whatever that potion was was obviously not instantly lethal, or she wouldn’t be alive right now.” The nurse retrieved a blood-siphoning needle and several empty vials from a nearby drawer with her magic before approaching Apple Bloom. “There is a possibility it’s a slow-action poison or magical effect, but only blood and magic tests will tell that. I sent another nurse to get our 'Magic' specialist and to tell him it’s an emergency, so he will be in very soon.”

~

The nurse had two vials of blood withdrawn from Apple Bloom by the time the unicorn doctor arrived. He promptly walked over to Apple Bloom and fed magic to his horn, a light-green aura appearing on it and lighting it up as he concentrated for a moment on a spell. A wide beam of magic then went from his horn and scanned over Apple Bloom’s form, his magic enveloping her as the doctor apparently checked for any forms of magical effects or contamination.

“Well, I can detect the effect the potion on her, but I am unsure as to how it actually modified her cells like that…” The doctor said after magically examining her for a minute, making the Applejack and the foals visibly tense. When he quickly detected their tension, he decided to be frank with them. “Apple Bloom here isn’t the first in here with a potion-induced mishap today, and I’m sure she’ll be fine... but according to my diagnosis spell, the potion has partially turned her to stone.”

Applejack wobbled slightly as she felt faint, the farm-mare nearly crashing to the floor if not for the levitation spell the doctor quickly cast to help her keep balanced, then quickly moving a chair over to her and helping her sit down before she fell down. “I know that sounds bad, but it doesn’t seem like the potion actually changed anything important to stone - just parts of her skin and coat.” Applejack suddenly collapsed to the floor as soon as these words were said, finally overtaken by the situation as her world turned black.

~ ~ ~

“…ack! Apple…! Appl...ack. Applejack!”

Applejack heard faintly her name being called as she opened her eyes, her vision white with the sudden burst of light into her eyes.

“Ugh!” Applejack moaned, moving a hoof to shield herself from the bright light.

“APPLEJACK, ARE YOU OK?!” The worried voice of Sweetie Belle asked in a high-pitched tone, the near-hysteria quite evident in the poor filly’s voice as it cracked multiple times throughout that simple sentence.

“Ahm…” Applejack moved her wobbly hooves underneath her as she moved to get up, then moments later stood with all four hooves on the floor. “...Ahm fine.” Sweetie Belle nearly collapsed in relief that Applejack was OK, sure that two hurt friends in the same day would be more then her little heart could take.

Applejack shook her head again to try and get rid of the slight ringing in her ears. “Ah just wasn’t prepared fer that. That was…just a might much fer me t’ take Ah guess…” Applejack said, rubbing her hoof against her head to quell the slight pain - having taken a small bop to her head when she’d hit the floor.

“Are we OK to discuss Apple Bloom further, or are you unsure if you can handle it?” The doctor asked as he again offered the Applejack a chair, which she graciously accepted. The doctor's horn was alight with his magical aura again and,unnoticed by Applejack- was that the same aura now surrounded Apple Bloom as well - him clearly working to cure her of what she'd caused to herself.

“Ah can handle it, it’s just…” Applejack trailed off as she noticed when the doctor's aura fade from Apple Bloom - leaving her no longer gray, but still unmoving. “It’s just hard for me to see my...uh...lil sis like this.” As she noticed her sister's color change, she decided to ask about it. "So why's she not gray no more?"

"Well, while you were unconscious and then recovering,  I cast a spell onto Apple Bloom to reverse the effects of the potion. I assured you this isn't really that big of a deal, and it probably isn't... but we're just going to run some blood tests to make sure my spell was right and the potion didn't have any non-magical, physical effects on her as well." the doctor answered. He then added, "The results should be in shortly, if you don't mind waiting here a half-hour or so."

Applejack looked to the other fillies and saw as they nodded, all knowing they couldn't sit right until she knew Apple Bloom was one-hundred-and-ten-percent OK.

"We c'n wait."

~

It was fifteen minutes more until Apple Bloom awoke, blinking wearily as bright light assaulted her vision, and when her vision cleared she looked around and noticed she was in a hospital room. As she then picked up on her friends a moment later, the small pony licked her lips before she tried to speak to them. "Scootaloo? Sweetie Belle? Why am Ah in a hospital?" the small pony asked as she noticed herself swiftly surrounded by the named fillies, and then a third, larger mare - her sister.

A hoof was placed on her chest, then a quick kiss was planted on Apple Bloom's forehead by Applejack, rough yet soft and loving at the same time.

"That's fer ya bein' alright." Applejack said.

Applejack then clunked Apple Bloom firmly on the head with her hoof, making the filly reach up and rub the struck spot.

"Ow! What was that fer?!" Apple Bloom exclaimed at the minor but unexpected pain.

"An' THAT was fer makin' me so worried 'bout you Ah fainted!" Applejack said, then quickly nuzzling against Apple Bloom's muzzle with her own. "Ahm just so glad yer OK now..."

"So wut happened?" Apple Bloom asked, still confused as to why she was in the hospital. "Las' thing Ah remember, Ah was testin' a potion Ah brewed to grow temporary wings and took a drink of it, then suddenly Ah felt all stiff and...blacked out."

"Well, that lil potion ya brewed pert-near turned you t' a pony statue! It changed part of you to stone!" Scootaloo exclaimed, making Apple Bloom flinch in response.

"T'...stone?! But Ah didn't add any cockatrice feather in...or did Ah...?" Apple Bloom asked, trying to remember just what she'd put into her concoction that would cause such a result.

"Either way, Ah think you should give Twilight or Zecora yer untested brews so they can verify they're safe next time before you chug 'em down?" Applejack told Apple Bloom more then suggested, getting a series of rapid nods from Apple Bloom in return.

Just then, the doctor returned with the blood results.

Opening a Can of Worms

The doctor flipped through the folder containing the blood-work results from Apple Bloom, quickly bringing a number of papers to the front of the folder before speaking. "Well Applejack, while no results came back of anything foreign being in her blood nor DNA during the very through tests, I discovered...something else. Please come here, we have some things we need to discuss." the doctor said, ushering Applejack over to look at the results and to speak with her more privately.

Applejack and the doctor spoke quietly to each other for a while, Applejack visibly getting more and more uneasy as the conversation went on. When he and Applejack finished discussing whatever it was they were speaking about a number of minutes later, Applejack immediately after moved to pick Apple Bloom up from the bed and place her on her back before then walk out into the hall, heading towards the front of the building and the exit.

~

Applejack was unusually quiet as the quartet walked back to Sweet Apple Acres, Applejack having let Apple Bloom walk herself once she'd learned she was able. Something was clearly on her mind now after talking to the doctor and the world was silent as they walked - the only noises their hoofbeats on the cobblestone then dirt paths, an odd gust of wind, and the quiet fluttering of Scootaloo's wings when she'd occasionally adjust them. Applejack had a look of deep though on her face as she headed back to Sweet Apple, clearly thinking about what the doctor had told her.

Apple Bloom noticed the change in her sister's demeanor soon after they'd left the hospital, but couldn't bring herself to ask what was the matter.  Applejack was clearly upset about something, but Apple Bloom wasn't sure if she should ask about it. It wasn't until they reached the gate-arch of Sweet Apple Acres that Apple Bloom finally found the courage to speak.

"So sis, what's-a matter?" Apple Bloom asked Applejack in a timid voice, the orange farm-mare visibly jumping at the sudden noise her speech had caused.

"Ah need to go... talk t' Big Mac, then make dinner. 'Fore Ah go, y'sure you're alright Apple Bloom?" Applejack asked with a distant, distracted voice - making Apple Bloom more concerned with her sister's odd behavior.

"Ahm OK, but-" Apple Bloom started, only to be interrupted by Applejack.

"OK 'at's great Apple Bloom. Ah gotta go. Go play with yer friends an' Ah'll call ya'll in fer dinner." Applejack said before starting to walk away, only to stop a moment later. "An' Apple Bloom? Dun be doin' any more dumb stuff, alright? Ah love ya, and Ah don't think I could take you gettin' hurt more then once today." Applejack said dismissively, then walking directly into the main house and leaving a very confused trio of filies behind her.

~

"What was that all about?" Sweetie Belle asked Apple Bloom once Applejack had gone inside, noticing the mare's very odd behavior.

"Yeah, she was acting like a zombie-pony i saw in that movie Rainbow Dash let me watch. It was awesome... 'tiI I dreamed I was being chased by a horde of zombie ponies!" Socctaloo said, then shivering as she remembered the bad dreams that had followed her viewing for about a week.

"Ah don't know - but it's somethin' involvin' me, mah blood and DNA, and mah family. Let's go see if we can listen in of what Applejack and Big Mac are talkin' 'bout an' see if we c'n get any clues."

The trio then looked excitedly at each other, Scootaloo's wings flittering excitedly before all three shouted as one-

"CUTIE MARK CRUSADERS EAVESDROPPERS! YAY!"

~

As she entered the main farmhouse, Applejack sighed as she hung her Stetson up on the hat-rack, then scratching her blonde mane before proceeding on up the stairs. She stopped right outside her brother Big Mac's door, raising her hoof to knock before lowering it again without touching the door. She instead moved her hoof to her forehead as she rubbed it and sighed exasperatedly, rubbing her head as she felt a stress headache coming on.

This was gonna suck. Applejack had hoped that this day would never come, yet she'd always know deep inside that it eventually would. She needed to talk to Big Mac and find a way to break this to Apple Bloom.

Applejack moved her hoof from her forehead a moment later and instead tapped it three times on Big Mac's door before lowering it to the floor,  waiting for a response. She then sighed as she saw the door open and Big Mac's large form standing in the doorway - looking into his emerald-green eyes, his red coat still visible in the dim light of his room.

Applejack rose her hoof to her muzzle again as she felt a wave of nerves take her again, almost wanting to walk away before stopping herself. She instead took a deep breath and steeled herself as the words finally left her lips

"We need t' talk. About...Apple Bloom's parents..."

As Applejack said that, Big Mac visible tensed.

"Ah know this's been a secret since 'fore she was even born but...she deserves t' know the truth after so many years a' avoidin' tellin' her, Big Mac. We owe it to her."

The stallion stepped back into his bedroom, then held his hoof extended into the room to tell her to come inside as well. Once she entered, he closed the door behind her and sighed, knowing that much needed to be discussed tonight.

"So how d' we tell 'er, Applejack?"

Sibling Secrets

"Ow! That's my tail!" Scootaloo said in a muffled tone, wincing as Apple Bloom stomped on her tail in the darkness of the house.

"Sorry, didn't mean t'! Ah can't even see ma own hooves! Lemme get t' light." Apple Bloom replied, flicking up a nearby light-switch and illuminating the main family room with light.

"Aah!" Sweetie Belle exclaimed at the flash of light, her eyes stinging as they adjusted to the sudden change in brightness.

"Sorry again!" Apple Bloom said, then looking around to see the room was empty. "Now where'd my sis go..."

Upon hearing muffled voices coming from upstairs, the three filles quickly but quietly took the stairs, intent on getting to the bottom of this mystery.

"Watch it! The fifteenth step squeaks!" Applejack said just as Sweetie Belle went to step on the named squeaky board, making her quickly take two steps at once to avoid making noise, all three sighing in relief as their cover remained intact.

~

Upon reaching the top landing of the stairs the voices the trio of fillies heard were becoming clearer, and Apple Bloom quickly identified that they belonged to Applejack and Big Mac.

"Ah told ya- -tell Apple Bloom!" the mare's still-muffled voice came from the room, but anypony could tell she was shouting.

"But what if she ain't ready?!" Big Mac's loud response perfectly audible now as the fillies crept closer to the door.

"She's a big girl now - almost a mare! Ah know she can handle the truth!" Applejack snapped, leading to a small window of silence.

"Wut's the secret? Wut've they been keepin' from me?" Applejack quietly asked as she and her two companions quickly pressed against the door to hear better, more to herself then her two companions.

"Shh, they might hear us! Then we'll never get our cutie marks in sleuthing!" Scootaloo hissed, then putting a hoof to Apple Bloom's muzzle as she went to respond.

~

Big Mac was nervously pacing inside the small room, his large form barely able to take four steps before having to turn around and pace the other way. Applejack was sitting on his bed, clearly just as nervous but not really outwardly displaying it.

"Ah just don't know how she'll take it..." Big Mac said, the soft clip-clop of his hooves on the floor making a rhythm to his thrashing heart.

"We gotta tell her the truth some time, so why not now? Iffin she don't hear it from us, the doctor might tell her. Er what if the doctor's a big blabbermouth and tells somepony else about it? Then what? She may end up bein' shunned by society!"

From outside in the hall, a sudden exclamation made the two jump.

"OH COME ON! WHAT'S THE SECRET ALREADY!?"

Applejack jumped up from the bed in a heartbeat at the sudden and familiar voice, and Big Mac trotted over to the door just as fast - both arriving at the door at the same time. Big Mac proceeded to open the door quickly and cause a trio of scared-looking fillies to fall in onto the bedroom floor, apparently having been leaning into the door and listening in to their conversation.

"DANG IT SWEETIE, YOU AND YOUR BIG MOUTH GOT US CAUGHT!" Scootaloo exclaimed, giving a harsh glare at the white unicorn filly in question.

"Apple Bloom?! Sweetie Belle?! Scootaloo?!" Applejack said, looking at each of the fillies as she named them. The three small ponies quickly scrambled up from the floor, getting to their hooves and deciding whether or not to run for the hills or just face the music.

A gentle hoof placed on Apple Bloom's rear stopped her from moving, from running away like she was tempted to after getting caught - forcelessly holding her in place as she looked back to the owner of the hoof. Applejack looked into her eyes, and Apple Bloom detected something she hadn't seen since in the proud pony since she felt like she'd let everypony down by only getting second-place in the rodeos - she was scared.

"Apple Bloom, we need to talk."

~

A minute later, all three fillies sat on the bed while Big Mac and Applejack stood in front of it, a deathly silence permeating the room as the two adults quietly spoke to each other at a distance while the fillies fidgeted nervously. Finally after what felt like forever, Applejack sighed and walked towards Apple Bloom, stopping right before the bed and sitting down.

"Apple Bloom, Sweetie, Scootaloo - what Ahm gonna tell you can't leave this room. Scootaloo, Sweetie Belle, since y'all heard there's an Apple Family secret and Ah don't want ya speculating and wonderin' about it, we're gonna tell you two as well." She looked at the two, looking into their eyes one after the other and making them shrink back slightly from the intensity. Applejack then continued "But...y'all can't tell nopony else about this, er it could hurt Apple Bloom's reputation fer the rest of her life. Ah trust ya like family, but Ah need you to promise me you won't tell anypony else. Right now."

Scootaloo and Sweetie Belle nodded in comprehension, saying and doing the motions of the Pinkie Promise to seal their vow of silence.

"OK, good." Applejack faced away from the other two, having their promise of keeping this their secret making her slightly more at ease. Applejack then turned to Apple Bloom, tensing up and shutting her eyes before speaking. "Apple Bloom, since this old secret has now come to the public eye, Ah believe we should be the ones to tell you before somepony else can." Applejack was visibly tense as she opened her eyes and looked to Big Mac, wanting him to tell them instead of herself.

"Apple Bloom..." Big Mac said nervously, "Applejack an' Ah are yer real parents."

Acceptance...and Curiosity

"What?!" all three fillies -chief among them Apple Bloom- shouted after the bombshell was dropped.

Apple Bloom was shocked: AppleJack and Big Mac wern't her brother and sister, but her mom and dad?! Then an idea came to her, and she started laughing as the obvious answer came to mind.

They were pulling a joke on her!

"Heh, good joke guys, ya got me good! But really, what's the real big secret ya wanted to tell me?" she said jovialy, trying to get them to break the act and get on with it.

After noticing their serious expressions hadn't changed at all once she called them out, her own seriousness came back - her fake happiness once again fading to uncertainty. "Uh guys?"

Applejack and Big Mac looked away from her and took a sudden interest in the wooden floor, and that's all Apple Bloom needed to see.

"Omigosh, yer tellin' the truth, ain't ya?" Apple Bloom asked, a lead weight seeming to drop into the bottom of her stomach.

Both nodded.

"So...A-Ahm really yer d-aughter?" Applebloom asked with a slight tremble in her voice. Another nod from both.

"Yes sweet-pea. Yer our daughter." Applejack responded, walking over and putting a hoof on her little filly's head, so happy to finally say those words to her. So glad to finally get the pressure off her chest after twelve long years of keeping it in.

Applejack flopped onto her rear as she struggled to accept that, the gears in her mind grinding together. So Applejack and Big Mac weren't only her brother and sister, but her mom and dad too? So all those years of Applejack being her protective sister, being overly protective even at times... that was just a mother's instinct to protect her young? And when she'd been talking to that cute little colt at school and Big Mac had scared him away...everything was fitting into place now...

"So..." Apple Bloom turned to her mother, "Applejack yer my mom?" Applejack asked once again, only to be wrapped in a tight hug by her.

"Yes Sugarcube. Ah am." Applejack said, a tear rolling down her cheek at the admission, hearing her daughter call her Mom for the first time ever after hiding the fact for over twelve years from her. So long she'd only been a sister but now...now she felt like a mother to her. Now she held her little filly close as though it were the first time, holding her tightly as a mother should, squeezing her foal to her chest like she'd always wanted to but had always been afraid to. "Ahm yer mama, mah li'l' filly..."

~

Big Mac just sat there watching as he watched his sister – and secretly more – hugging, smiling widely in a manner most uncharacteristic of him. He then stood and walked over to his mare and daughter, his two sisters, and wrapped both in a large hug of his own. He felt the unusual sensation of wetness rolling down down his cheeks as he heard Apple Bloom ask "Daddy?", squeezing Applejack and Apple Bloom in a tighter hug until he felt them pushing against him to let go, not hearing breathing anymore. Oops, too tight.

As he let go and heard a chain of heavy breathing from both as he let go, he give a soft blush, having squeezed a bit too tight and cutting off their breathing for a moment. After getting a brief muzzle scrunch from Applejack, Big Mac booped her on the muzzle, getting a light chuckle from her.

Applejack meanwhile simply sat there with her cheeks wet as the situation still dawned on her; "So, Ah have two mommies, two daddies, plus a brother and sister? Ahm the luckiest filly ever!" she suddenly exclaimed, getting up and bouncing around as though she'd finally gotten her cutie mark. Suddenly she stopped and turned to Applejack and Big Mac."But how'd it happen?" she asked suddenly, throwing the two off-kilter.

"Huh?" Applejack and Big Mac asked synchronistically.

"How did Ah come to be?" Apple Bloom asked, ever the curious filly.

"Well, uh.... Y' see, it was mah first heat..." Applejack started, sitting down and pulling Applejack close to her in another hug. The two other fillies in the room had been long forgotten but were totally awestruck by the revelation, their jaws hanging low as Applejack and Big Mac then started recounting the day of her conception to Applebloom – and spared no details.

Applejack's Memories (Explicit Content)

Many years past, Applejack had awoken one early spring day feeling...strange. It was not long after Winter Wrapup - a slight chill still in the air and a few patches of snow still melting here and there in the warm spring sun. Applejack decided to get up and then sluggishly walked outside after getting a drink and heading to the outhouse, her unusually tense muscles making her short walk that much harder. Figuring some fresh air would help her feel better as it usually had, she'd headed outside - needing to go to the outhouse and make her morning visit there anyhow.

Long story short, being outside didn't help... at all.

As soon as the warm sun touched Applejack's coat, she felt a sudden burst of heat ripple across her skin, trail down her back, and end up at her haunches. As she noticed that, she also felt her lower belly starting to burn inside - feeling as though somepony had lit something on fire inside her and left it slowly smoldering in her lower belly. She'd had had a number of Hay Fevers and other such illnesses in her still-short life of eleven years, but nothing quite like this!

Applejack went into the outhouse, still feeling the now-constant burn in her lower-abdomen as she went pee. Oddly, she found she was unable to empty her bladder as she usually could, seemingly retaining some and unable to get it out no matter how hard she pushed.

That was weird.

As Applejack once again walked into the dreaded sun, she felt between her legs starting to burn hotter in response to the warm sun, making her softly moan in discomfort. Applejack was starting to really freak out now as she felt the burn in her belly increase along with the burning in her crotch, desperately looking for a source of relief.

Then she spotted it - a patch of cold, wonderful snow right next to her. Applejack flopped her burning crotch into the nearby patch of leftover snow, sighing at the relief she got as her vulva touched that soothing coldness. Her orange coat was softly shimmering in the spring sun from her sweating, but she noted it wasn't even that hot out. Matter of fact, it was slightly nippy!

Applejack felt her head get light suddenly as she smelled a strong, unmistakably male scent coming from behind her as her muzzle detected the scent of a stallion's pheromones nearby. The snow she was sitting in was no longer able contain the strange heat emanating from her loins since this morning as the burning intensified now from that odor, between her legs growing hotter as her juices started to increase and drip onto the already-wet ground beneath her.

Applejack groaned softly in discomfort as her body's need grew, a need for what she didn't know, but she knew she instinctively that she needed something and that she needed that something badly. As she felt a muzzle sniff and press against her seated rear, Applejack shot up and moved her tail up and to the side as her small flower winked against the air on reflex, letting out another soft moan and spreading her back legs as she peed a little on the ground - unintentionally yet instinctively inviting the male behind her to breed her in the most primitive and obvious way possible.

~

Applejack felt as the stallion was climbing on top of her—identifying him as her brother when she saw his large red-haired hooves wrapped tightly around her small hips—and got a good grip around her hips before she even knew what was going on. When she felt him starting to thrust against her and something hard and warm prodding against her inner stifles and flank, all she could bring herself to do was spread legs further – instinctively giving the stallion a better chance of hitting his mark.

Applejack gasped as she felt the soft-warm thing press against her burning crotch, only to move up higher a moment later – then she felt it press against her tailhole.

This wasn't right. This didn't feel like how this was supposed to happen, and Applejack's instincts were telling her to make this stop.

As she felt Mac press against her virgin plothole, Applejack let loose a surprised cry of pain as the thing started to push inside, a bolt of pain shooting through her rear as her butt was suddenly stretched open. After she'd cried out, she felt Mac tense up -as she'd apparently startled him, then felt the hooves around her hips loosen and the weight on her croup disappear as a hoof slid along instead.

Mac apparently had climbed off her, leaving her feeling more disappointing then she knew why.

~

The next minutes were very awkward as she asked Mac what had happened and clumsily apologized, starting to explain what was happening to her body - and trying to explain why he'd been trying to 'put his pee-pee up her butt'.

With her instincts still screaming at her, Applejack listened as Mac explained the basics about the birds and the bees to her, mainly focusing on her  'heat cycle' and how she would react to stallions during this time - sloppily telling her why she'd reacted the way she did when he'd approached her and nudged on her croup, as well as why he'd mounted her and started doing as he had.

As Mac explained more about the facts of life to her, Applejack felt the faint ember in her ignite -  starting to feel the soft heat in her belly and between her legs increasing again in intensity as her brother stumbled through the description of breeding he'd apparently learned from Granny Smith - their vagueness and euphemisms only working to fuel her heat more.

Applejack looked at Mac's still-hard breeding rod the entire time as he explained what mounting was and what happened after, unable to pull her eyes away from it as the foreign thoughts of having it inside her overtook her thoughts.

She needed it...needed him inside her.

Now.

~

"...and then th' bee fertilizes the honeypot with his stinger, an if th' plot is fertile—." Mac finished trying to explain, only managing to mostly confuse Applejack with his rambling - with her only able to pick up the absolute basics of what Big Mac was saying.

As she was still trying to piece together what he was trying to tell her, Big Mac suddenly said something that more-then-mildly surprised her.

"Maybe Ah could jus' show y' how it works. Whaddya think, li'l' sis?"

~

Her brother's offer instantly stoked Applejack's curiosity, making her feel another burst of heat and prickling from between her legs at the thought. Applejack considered for a moment what he was suggesting - that he would climb on top of her and start to 'breed' her by putting his 'stinger' in her 'honeypot', he'd move around a bunch and make her 'fertile plot' feel real good, then shoot his 'honey' into her and make her 'flower' stop burning when he 'fertilized' it.

Applejack then nodded to herself as she turned to Mac and asked him her question. "S' all Ah gotta do is stand here and be 'breeded' by you, it'll feel real good, an' then this here itchin' and burnin'll go away fer good?"

Mac nodded and opened his mouth again, but Applejack wanted to hear none of it. Applejack put a hoof over Big Mac's mouth as he again tried to talk, silencing him as she then turned and shook her rear at him – her clit winking to him again on reflex as she flagged her tail up, revealing her swollen and very moist fillyhood to him. She needed this burning to stop  and if all she had to do is be 'breeded' by her brother to end it, she'd gladly do it!

"Well, then get on t' breedin' me already!"

~

Applejack felt as something nudged against her swollen slit, gasping at the sudden sensation of being rubbed down there.

"Big bro what're ya...aaaaaaaaah." Applejack started to ask, but instead of finishing she sighed in approval as Mac's muzzle started softly nudging against her needing flesh - that simple touch sending bursts of pleasure flowing through her and making her lean back into his muzzle, making her start needing more of that wonderful sensation.

~

Applejack tensed up as Mac moved away after she'd leaned back onto his muzzle, hoping she hadn't screwed up somehow – but relaxed again when he returned seconds later and started to lick her slit harder. As she felt a bolt of pleasure race up her spine, Applejack rewarded her brother with a shudder and a hard moan as his tongue drove into her now, penetrating her fillyhood and making her groan in satisfaction.

When Applejack felt a massive burst of pleasure seconds later, she wanted more. She leaned back against Mac's muzzle, feeling it spread her passage slightly more as well as rub on that wonderful spot he'd hit before again.

"M-mmm-more there..." Applejack barely managed to stammer out, quickly feeling another wave of pleasure flow through her as Mac's tongue once again assaulted her pleasure button, licking hard and making her tremble underneath him as bolt after of bolt of pleasure traced her spine -overstimulating the mare as she gasped for breath.

With pleasure surging through her young body, Applejack couldn't feel anything anymore except the tingling pleasure throughout her whole body as her brother's inexperienced tongue then penetrated her lips and start flopping around inside her passage.

"D-Don't stop bro..." Applejack moaned out as she dug at the ground in front of her hard with her front hoof, feeling as she parted the soft soil and left large gashes in the ground as she struggled to cope with her first eating-out.

Applejack's heat-addled body couldn't care less the skill of the young stallion - with Mac merely flopping his tongue around inside her and not even trying to find the sensitive spots every mare had. All her body cared about was that her needing marehood finally had something moving inside of it, and it eagerly clenched down on that object hard to prevent it from getting away.

As Mac amateurishly licked inside his sister for a moment more, Applejack suddenly moaned deeply as she felt her pleasure suddenly spike massively, her whole body tensing up as she felt something big washing over her all of a sudden – crying out as she finally felt something inside her figuratively snap.

All Applejack saw was white as she felt the most intense pleasure she ever had before, feeling Mac's tongue still flailing inside her before suddenly stopping as she felt her powerful muscles squeezed down hard on it, the sensation of it being pressed firmly between her muscles making her whine in her pleasure as another wracking wave jolted through her, making her tremble at the intensity of her first-ever orgasm.

~

When she'd come off her orgasm and was still panting for air, Applejack turned her head and faced back as she felt her brother's large hoof press onto her rear, followed by him wrapping both around her hips and his lower belly rubbing against her croup. The stimulation made her reflexively arch her hips up into him and spread her legs wider as her body reacted to the young stallion now on top of her, preparing her for what was next.

When she could speak, Applejack found she could only speak in a very throaty voice she'd never heard from herself before. "So now yer gonna breed me, huh?" she asked, getting a squirm of a brother on her back as a response. She sighed happily as she felt his belly rub against her croup, making her even more horny now that her stallion had her mounted and had her pinned beneath him - making her his.

Not responding past squirming on her back, Applejack felt as Mac instead started grinding against her croup rapidly as he started to thrust against her again, this time aiming lower and in the right direction! When she felt him press against the entrance to her lower hole, she felt him clutch her hips tightly as he thrust in suddenly – hard.

Applejack saw white as she felt a very satisfying fullness inside her now, sating her breeding instincts instantly upon entry. Applejack moaned in blazing pleasure as she felt Mac press into her more, only stopping after he'd hilted in her, leaving her smaller body utterly stuffed with his comparatively huge colthood.

Mac apparently was giving her a moment to breathe as he stayed still inside her, planted to the hilt. Applejack took advantage of this by taking in the sensations as she felt his 'stinger' buried deep inside her – feeling every throb it made and every vein on its surface, the slightly-expanded tip pressing against something that led to the itch deep inside her belly. As she felt her muscles softly rippling over his rod, she sighed in contentment – her fillyhood had finally gotten what it so desired and she was and not letting it go.

After both had caught their breath sufficiently and Applejack had nodded her consent, Mac started his pace at a slow hump. After a few gentle thrusts, Applejack instead felt as he started thrusting deep and fast into her, making her pleasure suddenly spike up another notch as he started properly breeding his mare on instinct.

~

After a number of the hard thrusts – with each one pressing against something very deep inside her foal-tunnel – Applejack started whinnying again as she cried out.

"Mac, Ahm...!"

As she uttered that, Applejack's inexperienced body started clenching down hard on Mac's rod as she came again, pleasure silencing her as her young stallion pounded her further even while she shuddered and groaned through the extreme pulses of pleasure now surging through her.

Even as she rode out her second orgasm, her body trembling under her brother as she was rutted hard for her first time, Mac didn't stop his thrusts into Applejack – instead pounding into her even harder to get through her tightly-clenching muscles!

He apparently needed this as much as she did now!

~

A passionate scream escaped Mac's throat as Applejack started whinnying again, the young mare feeling pulses from his "stinger" inside her, along with feeling deep inside herself being spread wider as it seemingly grew inside her! She could feel her deepest depths spreading further as Mac's 'stinger' flared, soon followed by a few more hard throbs as a wet warmth started spreading very deep inside of her – clearly his 'honey'.

The feeling of that warmth and of being filled and stretched so tightly extended her orgasm, making Applejack start to scream anew as Mac started to shoot his load into her passage, sending his first waves of young stallion cream into her as he started planting his seed into her very fertile 'plot'. Mac started thrusting hard again when he started cumming, gripping his sister's barrel tighter as his instincts demanded he hold her still and force himself as far into her fertile body as possible. His penis was apparently a perfect fit for Applejack's breeding canal as, with a few more deep thrusts, his flared head kissed then pressed against her cervix – his twitch-twitch-twitching shaft now gushing directly into her virgin womb and letting nothing escape as his flared head sealed against it with each thrust.

Applejack weakly moaned out one last time as she felt Mac bite her crest, adding that extra bit of stimulation and making her fall silent and limp as she suddenly lost consciousness - blacking out from the extreme pleasure and over-stimulation as she came once more.

~

Applejack awoke what Macintosh had told her was a few hours later, a sweet floral scent surrounding her. As she opened her eyes, she noticed a number of apple blossoms surrounding her - odd, since there were no apple trees over her. As she looked up and saw Mac sitting under a nearby tree, she got up on still-wobbly hooves and walked over to him, intent on asking him what happened.

"Mac...what...happened t' me?" Applejack asked in a still-sleep-ridden voice.

"Y' passed out after Ah... 'fertilized' yer 'honeypot'." Mac told her, and she saw a slight blush coming to his face as she heard those words proudly spoken from him.

"Wow..." Applejack said as she suddenly remembered a few hours past, flooding her with memories of the extreme pleasure she'd been subjected to, then it all fading to black. "...you were...great!"

"You too sis. Ah don't think Ah've ever felt so great in mah whole dang life!" Mac exclaimed, then wrapped a hoof around her neck, pulling Applejack into a hug.

Then it hit Mac. "Yer gonna get pregnant!" he nearly screamed, making Applejack jump at the sudden noise.

"What're ya hollerin' about? What's 'pregnant'?" Applejack asked, totally confused.

Mac considered how to tell her, not even totally understanding himself - "Y'see, when a mare and a stallion get t'gether and do what you 'n' Ah did when a mare has a 'fertile plot fer seeds' like you do, the mare will generally get 'pregnant' with a foal!"

Applejack still didn't really understand what 'pregnant' meant, but she did know what a foal was. "Y'mean Ahm gonna have... a foal?"

Mac nodded, a look of extreme nervousness crossing his face as he braced for her reaction.

"Ah love you Mac!" Applejack cried, wrapping her hooves around his neck and tackling the unsuspecting young-stallion to the ground in a hug.

"Yer... not mad?" Mac said after Applejack had stopped choking him with her hug.

"MAD!? Shoot naw, Ahm excited!" Applejack said, still not knowing the gravity of her situation, nor what being pregnant at such a young age entailed. "Ahm happy Ahm gonna to have a foal, Mac! Yer the best big brother ever!"

Mac smiled at his sister's compliment, and then remembered something else. "Applejack?"

"Yes big bro?"

"Y' can't tell anypony we did this today."

"Why not? We're gonna have a foal-!

"Because Granny Smith told me that family's never supposed to 'breed' together - somethin' about 'genes' and 'bein' too close'. Ah don't know what jeans gotta do with anythin', but it can't be good that we're family and just did that. Ah need you to promise me y' won't tell Granny Smith or anypony else you 'n' Ah did this today."

Applejack only paused to consider for a second. "Ah promise big bro, an' that's the honest truth!"

Big Mac's Memories (Explicit Content)

Young Big Mac (then just Mac) went out to the fields one Spring mid-morning to make sure that the sproutlings from the grass-seed he'd planted Winter Wrap-up Day were growing well. When he arrived, he looked them over and saw they were healthy-looking and sprouting normally, smiling at his job well done - and at having succeed in the first serious job he'd been allowed to do on the farm. Pa would have been proud...

Mac then headed down towards the west fields to water the apple seeds he'd planted the same day, eager to see them sprout as well and grow a giant apple tree. He thought to himself of growing the biggest apple tree Equestrian had ever seen and smiled around the handle of the watering can. A colt can dream right?

When Mac's nose detected a faint musky scent, he felt his upper lip raise on reflex, as well as feeling instinctively drawn deeper into the west fields. He wasn't sure why, but he felt compelled to find the odor's source. As he continued to walk, he felt his penis growing oddly tight in his sheathe now - with noticing the scent and the tightening in his sheathe both occurrences that had been happening more and more during springtime as he grew older. Unbeknownst to him he had started to grow erect, his body reacting to the female pheromones in the air.

Upon arriving at the west fields, Mac saw his sister Applejack sitting in a nearby patch of leftover snow. Her orange coat was softly shimmering in the spring sun from her sweating, but it wasn't that hot out...matter of fact it was slightly nippy to him! As Mac grew nearer to Applejack, his nose instantly led him to her planted rear, the musky scent quickly reaching its peak of concentration as he felt his penis fully drop from his sheathe now and quickly hardening from the scent of a filly in heat. Mac started sniffing against Applejack's rear, wanting more of that glorious scent as he then started nudging against her croup, trying to get under her tail to the source.

~

Upon arriving at the west fields, Mac saw his sister Applejack sitting in a nearby patch of leftover snow. Her orange coat was softly shimmering in the spring sun from her sweating, but it wasn't that hot out...matter of fact it was slightly nippy!

As Mac grew nearer to Applejack, his nose instantly led him to her planted rear, the musky scent quickly reaching its peak of concentration as he felt his member fully drop from his sheathe now, quickly hardening from the scent of the filly-in-heat. Mac started sniffing against Applejack's rear, wanting more of that glorious scent as he started nudging against her croup - trying to get under her tail to the source.

Mac heard as Applejack moaned as he pressed his muzzle to sniff against her seated rear, then was more then slightly surprised as Applejack shot up suddenly. He watched as her small flower winked against the air on reflex, before she let out another soft moan and spreading her back legs as she peed a little on the ground - unintentionally yet instinctively inviting him to breed with her!

Mac saw the filly's invitation and immediately lunged at her, mounting her and his hooves wrapped tightly around her much smaller frame before he even knew what happened. As he started to thrust against her he wasn't even able to control his body, running on pure instinct now as he continued to hump against this needing mare. His pheromone-filled mind didn't care that she was his sister, nor that she hadn't asked nor permitted him to do this - all it cared about were the rapid, hard thrusts his flat head made against the filly-in-heat's back end as he instinctively searched for...the bee's honeypot?

Mac moaned as his penis finally felt a warm spot against his tip, with him feeling a burst of pleasure unlike his virgin mind ever had before as he pressed his sensitive head against the tight and warm something. He'd only pressed in ever so slightly into warm spot when he heard a surprised cry of pain - Applejack crying out at the pressure against her hole. When that cry finally snapped Mac out of his lustful haze, he looked down to where he was pressing into - and immediately pulled back as he realized where his member was, quickly coming fully to his senses and dismounting her after discovering that he'd tried to put himself up his virgin sister's butt.

~

The next moments were very awkward as Mac clumsily apologized and explained what was happening to his little sister, as well as trying to explain why he'd been trying to put his 'pee-pee' up her butt. With his penis still aching in need of release he explained the basics about the birds and the bees to her, sloppily telling her why she'd reacted the way she did when he'd approached her and nudged on her croup, with him mainly focusing on a mare's heat cycles and natural reflexes to stallions during that time. All the while, he noticed Applejack gettign closer and closer to him, her gaze between his legs to his still-stiff willy uninterrupted

"...and then th' bee fertilizes the honeypot with his stinger, then his honey and seeds..." Mac said, and with that finally gave up trying to explain, confusing himself and undoubtedly more-so his sister with his rambling.   Instead he came up with a better idea, perhaps his libido thinking more then his brain as he asked his sister - "Maybe Ah could jus' show y', li'l sis?"

Applejack was silent for a while as she apparently either considered his offer, or was so stunned silent he’d suggested such a thing she was speechless. Mac instantly felt nervous, hoping he hadn’t gone too far by offering such a thing to his sister!

Applejack nodded to herself as she thought briefly, then spoke her thoughts aloud - "S' all Ah gotta do is stand here and be "stung" by you, it'll feel real good, an' then this here itchin' and burnin'll go away?" she asked, looking to Mac and cocking her head as she asked for confirmation.

Mac nodded and opened his mouth again - intending on warning her that they could have a foal together if they did this - but apparently Applejack wanted to hear nothing more of it. Applejack put a hoof over Mac's muzzle then pushed down lightly to shut him up, then turned and shook her rear at him as she nearly shouted her next demand. "Well, then get on t' stingin' me already!" she said, Mac watching as her clit winked at him again as she flagged her tail up, revealing her swollen and very moist fillyhood to the very horny young stallion.

~

Mac was unsure if his sister knew or understood the implications or risks of them breeding during her heat, but he was unable to care anymore let alone think due to his mind being clouded by his pheromone-induced lust. Mac's muzzle nudged experimentally against Applejack's swollen slit as he again took in her musky scent, feeling his member throb as he smelled his young mare.

"Big bro what're ya..." Applejack started to ask, her flank twitching as his muzzle started softly nudging against her needing flesh. Mac debated what to do next, but quickly was answered when he felt a wetness on his muzzle as Applejack's now-dripping marehood suddenly pressed against it, Applejack leaning back as she reacted on instinct to his touches on her lower lips.

Mac pulled back in surprise and licked his lips, tasting a hint of apples as he cleaned his sister's juices off his muzzle. Discovering he rather liked her nectar, he then proceeded in licking along her small flower as he further tasted his first mare.

Applejack tensed up again when Mac moved away, so he instead moved closer again and watched as she relaxed when he returned, then started to lick her slit harder. She rewarded him with a shudder and a moan as his tongue spread her lips and slipped slightly inside her after he'd cleaned her slit of the tasty stuff it was starting to produce now.

He liked her juices, and he wanted more.

~

Mac saw as Applejack visibly tensed up when he started to lick harder, rewarding her brother with another shudder and a hard moan as he unintentionally teased her.

Unsure of what to do next but spurred on by Applejack’s moans of pleasure, Mac pressed his tongue past her lips and penetrated them then started to lick around inside her passage, taking the further moans and shuffling from his sister as she ground her crotch against his muzzle as very good signs.

When he found a swollen button of flesh at the bottom of Applejack's slit, Mac experimentally gave it a lick and was immediately alarmed with a soft cry as she shuddered hard. Afraid he'd hurt her, Mac moved to speak - only to have her marehood ground more into his muzzle as he tried to leave her.

"M-mmm-more there..." Mac heard Applejack barely manage to stammer out, quickly learning that that cry of her was good, not pain! Mac once again set his tongue licking onto her pleasure button, licking hard and making her tremble underneath him as he continued to roughly lick the sensitive nub, the mare beneath him starting to gasp for breath now from the intense stimulation.

"D-Don't stop...bro..." Applejack moaned out as Mac saw her dig at the ground in front of her hard with her hoof, leaving large gashes in the ground as she struggled to cope with what he was doing to her. He smiled with a sense of pride at pleasing his sister, quickly wanting to help her more as he then pushed his muzzle deeper into her marehood.

~

When Mac pressed into his sister's passage more - now pressing very deeply into her - he felt an incredible tightness on his tongue as he heard her cry out again...but this time with a completely different tone from when he'd mounted her before.

Applejack started to grind against his muzzle as he apparently 'finished her', Mac feeling her muscles clenching down hard on his tongue as she cried out yet again in pleasure, constantly trembling and giving loud whinnies as she apparently enjoyed herself! He felt a splash of wetness on his face, and it was quickly followed by another as Applejack ejaculated from the extreme pleasure Mac gave her over-sensitive body.

~

When Mac pressed into his sister's passage more - now pressing very deeply into Applejack's 'honeypot' - he felt an incredible tightness on his tongue as he heard her cry out again...but this time with a completely different tone from when he'd mounted her before. Applejack arched her back and started to instinctively grind against her big brother's muzzle as he brought her to her first ever climax, with him feeling her muscles clenching down hard on his tongue as she cried out yet again in pleasure, trembling and giving loud whinnies as she came hard. He felt a splash of wetness on his face, quickly followed by another as Applejack gushed her first-ever release.

Mac couldn't take simply pleasing Applejack anymore, his instincts demanding stimulation - demanding him to breed his mare now. He pulled his tongue out of Applejack and then pressed his hoof down on her haunches as he lifted himself up, mounting her again on instinct.

Applejack looked back at her brother as he climbed on her, watching as he lined up as her need rose even higher then it was before he'd licked her. "So now yer gonna sting me, right?" she asked somewhat nervously as he felt his chest and belly rub against her croup, apparently afraid he was gonna chicken out and leave her like this. Not a chance in Tartarus! Mac started to shift around on top of her and halfheartedly thrust against her, making her even more horny now that her stallion had her mounted and pinned beneath him.

Not responding to his sister's earlier question, Mac instead started grinding against her haunches rapidly as he thrust against her again, this time looking down as he moved. When he saw himself at the entrance to Applejack's lower hole, he clutched her sides tightly as he thrust in hard.

~

A massive burst of sensation overtook Mac as he took Applejack's virginity in one swift thrust, the tightness and wetness of her velveteen hole and squeezing of her muscles against his colthood sending him instantly into a world of euphoria. When he heard Applejack moaning out in pleasure, Mac shortly after hilted in her slick passage.

Mac gave his sister and himself both a moment to breathe, taking in the sensations as he felt her warm and softly-squeezing passage grip and massage his willy.

After both had caught their breath sufficiently and Applejack had nodded her consent, Mac started his pace at a slow hump -wanting to take it easy at first for both their sake. After a few gentle thrusts however, Mac felt his breeding instinct kick in again and instead starting to thrust deep and fast into his sister, his instincts guiding him on the fastest path to properly breed his mare.

~

After a number of hard thrusts, feeling each one pressing against something very deep inside her foal-tunnel, Mac heard Applejack started whinnying again as she cried out.

"Mac…Ahm...!"

As he heard her utter that, Mac then felt her body starting to clench down hard on him as she finished again, silencing Applejack as he continued to pound into her as his own pleasure spiked from her clenching on his embedded rod. As Applejack continued to shudder and groan through her orgasm, Mac didn't stop his thrusts - instead humping into her even harder as he felt a tightness developing in the back of his pelvis.

He needed this as much as she did now, feeling his thrusts becoming more and more desperate as she grew tighter around him.

~

Mac meanwhile was in heaven, his tongue lulling out as he took the soft, hot and tightly-gripping passage of his sister, his first mare-in-heat, as his own. It felt so perfect as he thrust in hard through her orgasm, her clenching innards squeezing so tightly against his member and making him groan at the sensation, the resistance that Applejack's contractions caused only making him want to thrust harder to get deep into her again - so he did.

At this point Mac's body was only concerned with the final step in this ancient dance of mare and stallion as he felt her silken walls squeezing so tightly against his breeding rod, that final step being to give this mare what her body was effectively milking him of, what she so desperately needed. His seed.

As Mac felt Applejack's foal-passage clenching down hard on him one last time, he could take no more. With a loud groan and a final thrust he planted himself as deeply into her as he could, feeling something snap somewhere down there, followed by a growing and series of hard throbs coming from his 'stinger'. With a loud groan and a final thrust, Mac planted himself as deeply into his sister's passage as he could, his own tail flagging as it signaled his finish.

~

A passionate scream escaped Mac's throat seconds later as Applejack started whinnying again. He felt as his penis throbbed and his glans flared inside her, soon after feeling the tightness in his pelvis snapping - and feeling the most intense pleasure he ever had before. The feeling of being so deep in his mare and releasing inside her clenching passage, of making her start to scream as he shot deep in her passage - made Mac feel an intense sense of pride as he continued sending waves of his young stallion cream into her. Sending his first waves of young stallion cream into her as he started planting his seed into her very fertile 'plot'.

Mac started thrusting hard again when he started cumming, gripping her barrel tighter as his instincts demanded he hold her still and force himself as far into her fertile body as possible. His penis was apparently a perfect fit for Applejack's breeding canal as, with a few more deep thrusts, his flared head kissed then pressed against her cervix - his twitch-twitch-twitching shaft now gushing directly into her virgin womb and letting nothing escape as his flared head sealed against it with each thrust. Mac started thrusting into her hard again when he started cumming, following his instincts’ demanding that he force his seed as deep into her as possible - rewarded by another intense wave of pleasure as another gush of his 'honey' want deep into her 'plot'. Mac felt the tightness of Applejack's passage once again gripping his still-spurting rod as she came again, and that’s all his mind was focused on.

~

Mac noticed he was slipping out of his mare moments later as she started to suddenly slump to the ground, feeling her warmth sliding down until only his tip was inside his sister. Instinctively desperate to be deep inside her during his climax the colt crouched down over Applejack's unconscious body and thrust sharply to the hilt, satisfying his deepest urge as he again felt his full penis surrounded by her warm and clenching muscles, thrusting a few times for good measure to make sure he was as deep into her as possible.

Running purely on instinct now, Mac continued shooting his load into his sister for a good while, unknowingly filling her belly completely. As it had no way to get past his flared head, Mac's seed started to make Applejack's small abdomen start to expand slightly as he came more into her, his body intent to make this mare in need as full as possible as he continued to give her his first ever ejaculation. Mac felt as Applejack’s muscles continued to milk him even after his gushes reduced to spurts, her body apparently working hard to milk him as much as possible.

After he finally finished his last squirts moments later, Mac's back hooves quivered as he pulled out of Applejack and barely managed to dismount her on his wobbly hooves. A pearl of his semen very soon after escaped her passage and was followed by more, with her well-stretched passage offering little resistance as it developed to a small stream.

Mac stood beside his unconscious sister for a moment before noticing she still wasn’t moving, and quickly crouched down to make sure she was OK - his lust subsiding and him realizing Applejack had passed out!

Mac checked Applejack out as best as he could -listening to her heartbeat and rate of breathing- but didn't notice anything past pure exhaustion and over-stimulation being the cause of her collapse.

Exhausted himself from such a breeding, Mac flopped down next to her as he virtually collapsed into the soft ground beneath him - the soft grass tickling against his coat. His heavy eyelids shut as he looked upon the smiling face of his sleeping sister, soon after joining her in the realm of Luna.