>You wake up one morning and felt that something wasn't quite right. Then, you heard a knocking at your door.
"Big Mac? Time for breakfast!"
>Was that Applejack?! Slowly you got up to notice that you were now a horse!
>But not just any horse, you were Big Mac!
>How did this happen? Should you play it cool trying not to panic and see if you can find someone or somepony that can help you?
>As you made your way to the dining table, you couldn't help but notice a strange feeling between your legs.
>"Holy shit, is that my dick?!" you thought to yourself as it unsheathed and dangled as you walked nearly touching the floor.
"Er...morning Big Mac." said Applejack and you noticed she was staring nervously at the ceiling with her eyes darting quickly back and forth between it and your rather impressive manhood bobbing up and down.
"Granny! Big Mac's doing it again!" said Applebloom as she tried to keep her focus off you.
"Dagnabbit! I thought we talked about this..." you could hear Granny muttering to herself.
"Hurry and eat your meal boy! You have work to do!"
>You walk towards the table to your spot with a plate full of food and soon realized you just couldn't eat properly in this new horse body.
"Uh...Applejack? Does Big Mac seem a bit weird today?" asked Applebloom who noticed you were getting food everywhere.
"Hush and eat your breakfast Applebloom." said Applejack as her face made a worried expression at your odd behavior.
 
>It was going to be a long day...
 
 
>Somehow, you managed to figure out food
>It turns out that your hooves really did act like suction cups
>Took you a while to figure out how to let go though
>Horse magic, am I right?
>You still weren't quite sure how this happened
>Your memory was fuzzy, the last thing you remember was driving home from work
>And then this
>You decided to keep quiet about what happened, at least to the Apples
>From what you knew from the show, family was rather important to them
>You didn't want to find out how they might react to an alien creature possessing their brother's body
>As you pondered your situation, you heard the voice of the one pony you least expected to encounter
*Ugh, ma head... What the buck happened to me?*
 
 
>What
>The
>Fuck
>That was Big McIntosh's voice
>There was no mistaking it
>You looked up at the rest of the Apples, who didn't seem to have noticed anything
>Had you just imagined his voice?
 
*I can't move my body! I can't speak! What the hay is going on here?*
>Nope
>That was real
>You knocked your stool over as you ran towards the door
>"Big Mac?" Applejack called to you, "Ya feelin' okay?"
"NOPE"
>"An' where in Equestria d'ya think yer runnin' off to, boy? Ya got chores ta do!" Granny Smith shrieked after you
"Don't feel well. Going for a run!"
>You barrelled down the path outside the farm and came to a stop when you reached the edge of the Everfree Forest
>You hid behind a bush so as not to be seen by the Apples if they came looking for you
 
 
>Making sure nopony was around, you slump to the ground
*Care ta explain yourself, partner? I don't take kindly to losing control of ma body, and I can't think ma fam'ly would neither.*
>You could feel a wave of anger wash over you
>It seemed that the two of you weren't just sharing minds, but you could feel his emotions as well
"Listen, Big Mac. You ARE Big Mac, right? This is gonna sound crazy, but I promise you I didn't do this."
>You heard a dismissive grunt
"Look, I have no fucking idea how this happened, I just woke up here this morning! I'm not even FROM Equestria! You know as much as I do here."
 
>Silence
>The anger you felt before from Big Mac subsided
*Ah believe ya. Ma sister's the Element of Honesty, ah can tell when folks're lyin'*
>Relieved, you stood up and turned to face the farm
"I'm glad to hear that. Our situation is awkward as it is, we don't need to be at eachother's throats - or I suppose, at our own throat - to boot."
>You started to walk back towards the farm, not really having any fixed plan
"So, can you remember anything? Do you have any idea how this happened?"
*Can't say ah remember nothin' strange goin' on. Ah don't remember a thing from hittin' the hay last night to wakin' up at the breakfast table this mornin'.*
>He paused for a moment
*Ah ain't never heard of somethin' like this before. Sounds to me like some kinda crazy magic. Ah don' know much 'bout that sorta thing, but ah'd bet someone like Princess Twilight or that Discord fella would.*
 
 
"Discord it is. This sounds exactly like the sort of thing he'd do."
>You feel suspicion emanate from Big Mac's mind
*An' how would ya know that? How d'ya know so much about Equestria, if'n ya said ya weren't even from here? Who are ya?*
>You start to answer, only to be interrupted by a familiar voice
>"Big Mac! Big Mac, ya out here? There ya are, big brother!"
 
>You turn around to see Applejack trotting down the path towards you, with Applebloom in tow.
>"What the hay are ya doin' in the bushes, Big McIntosh? What's gotten into you today?"
>You swallow nervously, trying to think of an excuse
"Err, I was just..."
>"Never mind that. If yer gonna be shirkin' yer work today, you can at least walk 'Bloom ta school, give Granny Smith a little time ta lend a hoof with yer chores."
>Big Mac gives off a nervous tingle, but you ignore it
"Uh, sure AJ, I can do that."
>"'Course ya can, Mac. Ah can always count on ya."
>She leans in close and whispers into your ear, her warm breath on your neck
>"An' when ya get back, come find me in tha barn. Ah know yer feelin' peculiar, but maybe a li'l buckin'll perk ya up a little."
>As she pulls back, you can feel Big Mac trying to blush
>You'll have to ask him about this later, but that's not the only thing you feel
>Applejack looks down between your legs and whistles
>"Ah'll see ya later, –BIG– brother."
>She turns an walks back towards Sweet Apple Acres, tail raised high
>You swear you saw her wink
 
>As you watch her go, Applebloom walks up beside you
>"Ya really need ta keep that thing under control, big brother. It just ain't right."
 
 
>You look down at Applebloom, who has the biggest shit-eating grin on her face
"C'mon, 'Bloom, let's get you to school."
>She sniggers, but turns to follow you
>The walk to the school was fairly quiet
>Aloud, at least
>In your head, however, a rather embarrassing conversation was taking place
'So... You and Applejack, huh?'
*You shut the buck up about her, ya got that?*
>You feel the heat in your head rise as Big Mac becomes more and more enraged
*Ain't nothin' goin' on between tha two of us. She's ma sister, for Celestia's sake!*
>You chuckle
'So you're just a very affectionate family, huh?'
>Silence
'Listen, Big Mac, what you and your sister do behind closed doors is none of my business, but can I ask you one thing?'
>There's no response for a moment
>You can feel Big Mac's suspicion rising
*And what migh' that be?*
'Does Applebloom know who her parents are?'
 
 
>From the headache Mac just gave you, it seems like you may have touched a nerve.
>Let's see how far we can bend it.
'She can't be any older than eight or nine, right? And Applejack's maybe twenty?'
>You hear a nervous gulp
'I'm no expert on pony culture, but where I'm from you don't see many eleven-year-old mothers. Certainly not legal ones.'
*What might you be implyin' here?*
'I think you know what. A teenaged brother taking advantage of his little sister like that...'
>You put a hoof around Applebloom and pull her closer to you as you walk
>She looks up at you, and you look down at her and smile
*Ya better stay away from little Applebloom, or I-*
'Or you'll what? What's wrong with a big brother showing his little sister a bit of affection?'
*She ain't yer sister. Ya ain't me!*
'She's not your sister either, Big McIntosh. She's your daughter. What would your parents say if they knew what you did?
 
 
>The rest of the journey was fairly uneventful
>You could feel Big Mac's hatred of you burning in your head
>The headache was making you start to sweat
>As you come within sight of the schoolhouse, Applebloom dashes off ahead
>You can see her Cutie Mark Crusader friends run to meet her
>They begin to play some sort of game in the schoolyard
>It looks to be similar to tag
>As they play, you see them leaping and bouncing in the air, trying to avoid being tagged
>You think back to when you were a human
>You always did have a thing for the CMC
>If they only knew the effect they had on you
 
>As you approach, dong partially expanded, you bid them a good morning
>"Oh, morning Big Mac!" Scootaloo shouts, ducking out of the way of Applebloom
>Sweetie Belle turns to face you, looking you up and down
>Her gaze seems to rest between your legs for a moment, before she looks you in the eyes
>"It certainly is a good morning now..."
>You stare open mouthed at her for a moment, before she's tackled to the ground by Applebloom
>"Tag! You're it!" she cries, before getting up and running away from her friends
>She comes up to you and whispers
>"What the hay are ya doin' big brother? Yer gonna get inta trouble!"
 
>Suddenly, you hear the school bell ringing
>"Aww, but there's still ten minutes until school starts!" you hear the girls moan as they trot towards the entrance
>Cheerilee is stood at the door, greeting the foals as they enter
>She looks towards you coldly, before shutting the door as the last pony enters
 
 
>You're sat down on the floor of Fluttershy's cottage
>Fluttershy is sat across from you, on the other side of a small dining table, complete with tablecloth
>The table is definitely not meant for ponies, as it stands about a foot off the ground and the tablecloth drapes over your legs
>The two of you are sipping from dainty little porcelain teacups, chatting about little things
>Fortunately your [spoiler]supreme faggotry and[/spoiler] knowledge of the show meant that you could hold a conversation with her
>It's actually quite nice, you haven't had a conversation with anyone since you arrived in Equestria
>You've managed to tune out Big Mac for now, so the two of you are left in peace
 
>"And, according to Pinkie Pie at least, that's how Equestria was ma-"
>Fluttershy is cut off by a loud rumbling from your stomach
>You realise that you haven't eaten anything substantial all day
>Maybe skipping breakfast was a bad idea
>You smile apologetically at Fluttershy, but she's already stood up and panicking
>"Oh, goodness, I've been a terrible host. Oh dear, I've ruined our little tea party. You must be starving, let me see what I can find for us."
>She zips towards the kitchen, and begins to rummage through the cupboards