Big Mac’s O So Sweet Surprise

Chapter 1

The mystery that starts it all...

****

That had been a damn long meeting with Mayor Mare, dragging on to finish almost half an hour after the work day was over. The fact that Big Mac had needed to go during the entire thing hadn’t helped either. He really should have asked for a bathroom break, but it had always seemed like they were just a few minutes from completing the task, before it inevitably dragged on for more than a few minutes more. Nevertheless, all the questions about the farm had been answered, and the answers were good. If things continued like they were, then the farm would be debt free by next harvest.

Big Mac sighed contentedly as he shook off the last drops from his quite sought after stallionhood. He took a few lengths of paper from the side container in the stall and dried and cleaned himself before tossing the paper down and flushing.

He was just about to walk out of the stall when a little knock was heard from his left side. He looked in surprise as a hole suddenly became unplugged, and one second later a little note was pushed through it. Big Mac caught the piece of paper, as he looked down he could see in very fine writing. “Please let me suck your penis, I’m quite good at it.”

Big Mac looked with wide eyes from the note to the hole connecting his stall with the next. Whoever was on the other side wanted to give him a blow job? That was just… wow. He had heard about these kinds of places, but he had never actually had the inclination to look for one. After all, Big Mac had an average of two or three mares dragging him to their homes each week for a little fun sexy time.

Although, it has been almost a week-and-a-half since I last screwed Cheerilee… Big Mac thought while he felt a little twitch from down below. A free blow job is a free blow job.

Still, there was the problem that this was a unisex toilet. It could be either a mare or a stallion on the other side of that wall. And he was no colt cuddlier… okay, he had experimented once, but that had ended rather quickly.

Although that raised the question: how did the occupant of the other stall know he was a stallion? He could just as easily… actually scratch that, it was a lot higher probability that it would have been a mare in this stall going by pure chance. This meant that whoever was on the other side knew who he was.

Could he really do this?

“‘Scuse me,” Big Mac said in his very distinct voice, “but this ain’t some joke, is it? Ya serious about it?”

There was the sound of scribbling from the other side, and then a new note was shoved through. In the same quite beautiful writing stood, “No, no trick. I really want to taste you. And if you’re good, I’m quite flexible in accepting requests as well. Pussy or ass: if you’re a good boy, you can have it all.” There was a little winking eye drawn at the end of the sentence.

So it was a mare, and she was offering more than just a blow job. Big Mac grinned to himself; now it was getting interesting.

“Alright, just a minute,” Big Mac said in his calm voice while he started to fantasise about some of the wilder mares he’d fucked before, massaging his flaccid dick with his hoof.

In a few moments he was nursing quite the semi, and then, with a bit of awkward maneuvering, the big red stallion managed to get most of his cock through the hole in the wall.

A cute little gasp could be heard from the other side, and then the head of his cock was instantly engulfed in a very pleasurable warmth. The mare on the other side started sucking him off while she let her tongue work around the edge of the head of his penis.

Big Mac moaned quite happily, and came to the conclusion that yes, she knew what she was doing.

His cock started to grow rapidly under the pleasurable assault of the mystery mare. She then started bobbing her head up and down while twisting from side to side. The mare’s tongue slithered and expertly massaged the underside of his dick. It was all making Big Mac hiss in pleasure as he could now feel the head of his stallionhood hit the back of the willing mare’s throat.

“Oh, you are good at this,” Big Mac said through clenched teeth. He was going to cum, and soon if this continued. But he didn’t want this to end quickly; it was a far too surreal and wonderful experience not to make it last.

“Can… can you… gah! Hold on for a second?” Big Mac asked to which he felt the mare stop her ministration, but the mystery mare still kept his cock in her mouth massaging it lightly with her tongue while she waited for instructions.

“If yer so into this...could ya turn around?” Big Mac asked hopefully.

The mare’s mouth released his dick with a wet pop, before she dragged her tongue from the base of his cock in a slow long lick ending at the tip. Then it was left alone in the cold air. Big Mac almost started to fear she was denying him, when he finally heard shuffling. Then he felt, what was clearly the nether lips of a female, the soft velvety folds being pressed against his length, dragging sensually along the top of it, before stopping and pressing itself against his flat cock head.

With quite a bit of effort, the mare forced the tip of his quite generous dick into her sopping wet pussy. This unknown pussy, warm and velvety, constricted his throbbing pole with surprising ferocity.

“Oh fuck, you're tight!” Big Mac exclaimed in absolute delight. The only thing he could remember that was even close to being this wonderfully constricting was the times a mare had agreed to take it in the ass. And of the mares that did try, only Cheerilee and Fluttershy had come back asking for more of the same.

Soon the mare had wiggled and brute-forced her way down his long, thick shaft. Big Mac could hear her panting quite loudly. And from how she sounded, she was biting down on something to try to keep herself quiet. Picturing the mare biting down on a ball gag actually made his dick twitch inside of her, and the mystery mare moaned happily.

Being more than ready for it now, Big Mac started to pull out before shoving his dick back into the unknown mare. Because of the wall, he only managed to get maybe two-thirds of his cock inside of her, being generous with his estimation. But still, he was pretty sure he connected with her cervix on every other stroke. Although this wasn’t the first time he had encountered the problem of being too long to fit entirely inside a mare, this was definitely the shallowest pussy he had ever fucked. Then again, with how wonderfully tight said pussy was, he really couldn’t say he minded too much.

After a few minutes of intense thrusting, Big Mac’s dick was suddenly grasped so tightly his eyes almost crossed in pleasure. The mare on the opposite side of the wall squealed through her gag in delighted ecstasy while her pussy quivered in spasmodic bliss, while Mac continued fucking her clenching core.

Big Mac grinned as he realized the mare was orgasming hard, so he gave several extra strong trusts to keep her orgasm going for as long as possible. Even after she came down again, the mare continued moaning happily.

Big Mac had worked up quite a sweat, fucking at such an awkward angle. But still, this was probably some of the best sex he had ever had. The sheer tightness of this mystery mare was glorious, and the fact that he didn’t know who he was riding so vigorously actually added to the thrill.

The two of them keeps on fucking as if this were the only chance the two of them would ever have at intercourse in their life. After twelve minutes more of intense screwing the mare's vagina once again coiled around his dick like a boa constrictor. The sheer pleasure shooting up through Mac’s spine once again skyrocketing while the mare climaxed, Big Mac grunted in euphoria while he forced his big cock as deep into her velvety warm cunt as he possibly could.

The two of them were in elysium, Big Mac fucking her as hard as he possibly could through the hole in the wall, grunting in pleasure though he tried to keep it as quiet as possible, though the chance of being discovered was probably pretty slim — he and Mayor Mare had been the last meeting to finish, and she had actually left ahead of him, saying she had a quick errand before leaving for the day. So Big Macintosh and the mystery mare were most likely the only two ponies in the building right now.

After some more heart throbbing, mind blowing and unrelenting sex, where both participants had most definitely gone all out on their different ends, Big Mac could feel himself coming towards the inevitable conclusion. The mare climaxed for the third time, the wonderful feeling of her pussy clamping down on him like a vice, her velvet walls massaging him like nothing he had ever felt before.

Big Mac let loose a somewhat restrained scream, and buried himself as deep as he could in the mystery mare, clearly feeling the top of his cock grinding against her cervix. As the gates opened, his semen started to flood into the tight pussy which was gripping him, milking him for all he was worth. When Mac finally could feel his squirting spunk starting to subside, he made a few last desperate thrusts trying to extend both of their orgasms as long as possible.

Finally Big Mac fell back against the other wall of the stall sliding down it until he was sitting on the floor panting heavily, with the goofiest smile ever across his muzzle.

From the other side of the stable wall he then suddenly heard the loud thud, indicating that the mare on the other side had most definitely fallen over. There was a pained moan before everything went quiet.

“Miss?” Big Mac asked while he looked at the hole in the wall.

“Miss, is everything okay?” he said a little louder and stood up. But there was no answer.

With a bit of worry, Big Mac exited the stall and stood in front of the next one where the mare would be and knocked on it before speaking loudly. “Y’all okay over there? Talk to me, Miss!”

There was a pained moan before something shifted on the other side. Not wasting any more time, Big Mac grabbed the handle and ripped the locked door open. Then he froze in place.

On the floor in front of him lay a little filly; a little filly he knew quite well. Sweetie Belle, Rarity’s little sister, and one of his kid sister’s best friends. She was rubbing her head a little bit, having apparently fallen down from the toilet when she had slipped on some of his semen that had spilled out of her overstuffed pussy but a moment ago.

Oh dear Celestia, I fucked a filly… I fucked Sweetie Belle… Big Mac thought; his mind felt like it was working in slow motion as he tried to understand just how this had happened.

When Sweetie Belle finally looked up and met Big Mac’s gaze, her eyes turned into pinpricks. They were both frozen in place like that for a while, Big Mac trying to comprehend what he had done, and Sweetie Belle quietly panicking at being discovered.

They just stood there, unable to move, as if they had both looked into the stare of a Cockatrice.

Finally it was Sweetie Belle who broke the spell. “Please, Big Mac… don’t tell any pony… especially Rarity…” Sweetie said in a very pleading voice.

Big Mac’s only response was to sit down rather abruptly, still unable to take his eyes off Sweetie Belle.

“Mac?” the white little filly said as she stood up slowly.

With a worried expression, she started to slowly walk towards the great big stallion, who immediately started scotching backwards until his back hit the wash basin. He looked behind himself only to discover he had nowhere to go. Big Mac looked forward again only to meet the bright green eyes of Sweetie Belle, who was now standing right in front of him.

“Mac, please talk to me,” she said in a worried tone.

Big Mac opened his mouth and closed it again, then tried a few more times before he finally managed to speak just one word. “Why?”

Sweetie Belle’s ears laid back flat at the question. She started dragging one of her front hooves lazily over the other, all the while looking completely adorable. The young filly nonetheless took courage in the fact that Big Mac had not run out the door screaming, and hoped that if she had a chance to explain herself, then maybe this wouldn’t end in disaster after all. “Weeeeeel… it started maybe year and a half ago-”

“You’ve been doin’ this a whole year?!” Big Mac interrupted loudly before clamping his hooves over his mouth, looking from side to side in dread that some pony had heard him.

“What? No!” Sweetie said a little bit annoyed at being cut off, “I’ve only had real sex for… like… six months maybe? Now, don’t interrupt me again, okay?!”

Big Mac blushed and looked a bit sheepish before answering. “Okay…”

“Good, now it actually started almost two years ago,” Sweetie said while tapping a hoof against her chin as she was trying to remember the events all over again. “Anyway, I woke up hearing some funny noises coming from Rarity’s room. I walked over and notched the door open a little bit. Through the crack I could see Thunderlane on top of my sister. His penis was buried all the way in her folds,” the little filly said with an impish smile. “I watched them fuck each other’s brains out for over twenty minutes. They both seemed to enjoy it quite a lot, although Rarity got a little annoyed that he finished inside of her, since she didn’t have a day after potion at hoof.”

“Day after potion!” Big Mac suddenly said in panic.

Sweetie Belle snorted before giving a laugh and smiling up at Big Mac. “Relax you big lug, I’m way too young to get pregnant, you know.”

“Ah… right…” the big red stallion said with a sigh of relief before looking down at the little pink and purple curly maned filly, “Sorry for interrupting…”

“That’s okay, Mac,” Sweetie said while she tapped his thigh with her hoof.

Big Mac looked down at her with surprise. When had she gotten that close again?

“So…” Sweetie said, picking up the story, “I went back to my room and started… experimenting with myself, and boy did that feel good!” She squirmed as if the little filly, remembering the wonderful things she felt that night. “Since that night I couldn’t stop masturbating. I did it every night, more or less. Then came a real breakthrough about a year and a half ago: I found this strange magazine in a hedge, featuring some mares and stallions doing some really crazy stuff with each other. And on the back of the magazine, there was an ad where you could order all sorts of fun stuff to masturbate with. It was quite easy ordering it in Rarity’s name, and then I made sure to be home to intercept the package when it was delivered.”

Big Mac just nodded that he was following the story so far.

“Well, that was how I entertained myself up until six months ago. It had become quite a regular thing for me to find one of those magazines in that same hedge every now and then. And in this one particular issue, there was a story about glory holes… and that’s when it hit me! I could have sex with a real stallion whenever I wanted!” Sweetie Belle said from where she now sat between Big Macintosh’s large thighs, one hoof on each of them, spreading them apart, looking down at his cock which had started to emerge again of its own accord. “And now… I finally have a lover I can be open with, who can satisfy me, without me having to hide who I am.”

“Wait! What?” Big Mac said in shock while his dick emerged a little more as Sweetie Belle had started to playfully massage around his sheath with one hoof while looking up at him with sultry eyes.

“Of course,” Sweetie Belle said with a big smile, “you loved the feeling of having your big cock inside of me. Look into my eyes and say that you didn’t, and I’ll leave right now.”

Big Mac looked down at her with wide eyes, sweat running down his forehead. He had to do this; it was for her own good and his. All he had to do was say he didn’t like it.

“Best mare I ever had…” Big Mac looked perplexed; that wasn’t what he had intended to say at all.

Then he gasped and looked down, finding Sweetie Belle with his cock buried in her mouth, once again giving his semi-erect penis a blow job. His head slammed back against the wash basin, groaning loudly in pleasure as he looked up at the ceiling.

No! Big Mac thought desperately, I… I need to stop her… this is… so wrong… This… this feels so fucking good!

He could feel his resistance melting away like a snowball being tossed into a bubbling volcano. He looked down and found that his right hoof had grabbed the back of Sweetie Belle’s head pressing her down onto his throbbing shaft. And he could feel the smile on her lips, all the while her tongue was playing with the veins criss-crossing his massive cock, letting her feel the pulsing of his heartbeat.

Big Mac groaned again, while guiltily wishing her throat was big enough to take him down his entire length, but that would not be happening for quite a while.

Wait a minute? Was he really going to do this? Continue to have sex with this underage filly?

His head slammed back again as he felt Sweetie Belle’s tongue make a particularly pleasurable circle around the head of his dick.

Oh fuck yes! Mac thought in glee. He was going to screw this filly for as long as she would have him!

His mind made up, Big Macintosh released his grip on her head, allowing Sweetie Belle to pop his cock out of her mouth, only for her to give his member along sensual lick from the base to the tip. She then started kissing it lovingly down each side.

“So…” Sweetie Belle said between kisses along his stallionhood, “are you ready for another round?”

Big Macintosh looked down at this wonderful little filly, his filly, his fillyfriend. And for the first time since this conversation started, he gave a genuine smile and answered, “eeyup.”

Sweetie Belle immediately started crawling up on his stomach, where Big Mac helped her to realign herself with his cock. Then as they looked into each other’s eyes, Sweetie started to sink down on his stallionhood while giving a long sensual moan.

Macintosh hissed through his teeth while he felt his bulky length once again being enveloped in the most fantastic pussy he had ever had the pleasure of entering. Her moist, burning hot velvety walls, slowly but surely stretching out to receive his iron hard rod.

Sweetie meanwhile was moaning and whimpering at the wonderful feeling of being stretched almost beyond her capacity. The wonderful feeling of slight pain overridden by immeasurable pleasure coursing through her, making her want to take Big Macintosh’s throbbing cock even deeper inside of her core.

Then the top of Mac’s dick finally collided with Sweetie Belle’s cervix making her gasp before she bit onto her lower lip to keep from crying out.

Feeling that he’d reached the end of Sweetie’s pussy, Big Mac stopped and looked down to see that he had once again only buried a little over two thirds of his entire length inside of his lover.

The two of them stared into each other’s eyes, both just feeling the wonder in the fact that they were together like this, the absolute pleasure of being connected so intimately with each other.

“Big Mac…” Sweetie Belle breathed huskily.

“Yes Sweetie…” Big Mac answered just as softly.

“Please…” Sweetie began, “fuck me, mount me, rut me, penetrate me, ram me, plough me, pound me, buck me!” The little filly said it with desperation in her voice before she once again got a hold of herself. “But most importantly… make love to me…”

Big Mac just looked down at Sweetie Belle with acceptance and affection in his eyes before answering, “eeyup.”

And with that Big Mac easily picked Sweetie up in his forelegs, before turning her around with his cock still buried inside of her. Sweetie Belle moaned, feeling her back now resting against Big Macintosh’s muscular chest and stomach. The big red stallion hooked her rear legs with his front hooves and proceeded to lift her up, until only the tip of his member was still inside of her. Then slowly he let gravity impale her on his shaft again.

Sweetie couldn’t help it; she gave a little outcry in pleasure. Feeling her stallion’s throbbing length once again entering her pink quivering and very moist depth. Her back instinctively arched off Big Mac’s stomach while she cried out again. He hadn’t even begun to really fuck her, and Sweetie Belle was already on the verge of her next orgasm. The feeling of being spread so incredibly wide overwhelming her. That good pain, like stretching out muscles she didn’t really know she had.

Sweetie Belle started squirming and grunting as Big Mac increased the pace of their intercourse, her excess pussy fluids starting to run in rivulets down Macintosh’s now gleaming cock. Every time his dick left her, she yearned for its return, and every time it hit her cervix, her vagina clamped down on Big Mac’s wonderful cock as if her pussy was trying desperately to suck the shaft even deeper inside of her privates. Very soon she cried out fully as an orgasm rocked through her young body.

Big Macintosh meanwhile was panting heavily, having grabbed hold of Sweetie Belle quite roughly, pinning her legs against her own body while lifting her up, and then shoving her down on his cock again, going harder and faster. He buried his face in her mane, breathing in the scent of the vanilla shampoo she used for washing. Then he started kissing down the side of her cheeks, continuing down her neck and out on her shoulder.

That was enough. Sweetie Belle cried out again as the orgasm gripped her body, her vagina clamping down on Big Mac’s cock so hard it almost locked in place. But with his immense strength, Big Macintosh managed to continue fucking Sweetie Belle even through the most intense orgasm she had ever had.

When she finally came down, Sweetie Belle could feel how Big Macintosh’s dick was throbbing inside of her. She understood that he was getting close to ejaculating, but she wasn’t done yet: she wanted more, and she wanted to give more.

“Mac… Mac hold-up…” Sweetie Belle managed to squeak out.

“What!” Big Mac asked a bit loudly. He was still fucking her, but his pace slowed down enough for her to speak now.

“I… I have something else I want you to do… please…” Sweetie Belle said breathlessly.

Reluctantly Big Macintosh had now stopped, although his shaft was still buried as deep as it could go. He gulped down a few lungs full of air and spoke. “What is it?”

“There’s… there’s still one place you haven’t tried,” Sweetie Belle said while blushing fiercely.

The words processed through Big Mac’s brain, and then his eyes went wide with understanding. “What?! No, you’re...that ain’t gonna work,” Big Mac said but nonetheless smiled down at Sweetie Belle. “Appreciate the thought, though.”

“And why not?” she said with a bit of annoyance. “You think I haven’t played with my own ass? I've got quite a selection of butt plugs, and I’ve tried most of them.”

“Still…” Big Mac looked down at Sweetie Belle’s petite body. “Ah’m not the easiest stallion to fit in tight spots.”

Sweetie Belle rolled her eyes. “Yeah, you think I didn’t notice?” Then Sweetie tilted her head up, kissing Big Mac’s chin lovingly. “I know it might not work, but I want you to try. I want to give you all of me. Besides I do have something that might help.”

With that she leaned forward and landed on the floor in front of Big Mac, although his dick was still connected to her pussy. With a final little tug, she freed herself from his impalement, which made both of them give a reluctant little sigh. Both their ears perked up at this, causing Big Mac to smile and Sweetie Belle to giggle.

With a pep in her step, Sweetie went into the stall she had been occupying earlier, retrieving her saddlebags. She scooped up the tennis ball she had used as a gag earlier before she brought the bag out and opened it. As Sweetie Belle put the still wet tennis ball back in her bag, Mac got an opportunity to see inside it. He could see papers, quills and a bottle of ink. Sweetie Belle reached into the saddlebags and withdrew a different bottle. It was square, and when Sweetie Belle presented it to Big Mac he almost laughed out loud.

“Extra virgin olive oil?” he said with a crooked smile. “Ya really want to try this?”

“Yeah, I do. It wouldn’t be my first time either, Mac… But you’ll definitely be the biggest I have ever tried to take in my ass,” Sweetie Belle said and somehow managed an innocent smile.

“Okay...” he said with a nod. “We’ll try.”

He then uncorked the bottle, and started pouring the oil along the top of his cock. Sweetie immediately stepped forward and started stroking his appendage lovingly, spreading the slick substance all over his massive shaft.

Sweetie Belle was looking at Big Mac’s dick like she was in a trance while she worked it over, causing Mac to smirk down at her.

“Second thoughts, Sweetie?” he asked.

“What?” the little filly said while she looked up at him. “No! It’s just… it’s so… so… majestic!” Sweetie Belle said with a strained smile.

“Ah think ya mean ‘big’,” Macintosh said with a teasing voice.

“Oh, shut up!” Sweetie Belle answered in a good-natured jab. “Now would you be so kind and add some oil at this end too?”

With that Sweetie turned around and presented her rear to him, making sure her tail was as far off to the side as she could possibly keep it.

Big Mac nodded and let a bit of oil drizzle down on her ass cheeks and sphincter. Putting the bottle down, he started massaging the oil into her ass, paying close attention to her rectal opening, using the tip of his hoof to massage it, and making it relax as much as possible.

Moaning pleasantly, Sweetie Belle’s front hooves gave way and she slumped down to the floor while Big Macintosh continued to tenderly stretch her asshole. “Wow… that actually feels really good, ” Sweetie Belle commented.

“I’m glad you like it so far,” Big Mac answered and started using his second hoof tip to stretch her sphincter even more open.

“Mmmm… I can’t wait to feel you inside of me again, Big Mac,” Sweetie purred teasingly.

“We’ll see,” Mac answered, still not sure that was going to work.

Finally certain he had done all he could, Big Mac stood up, only to realize a small problem. Namely how little Sweetie Belle was in comparison to him. Even if he was standing on top of her, as he did when he normally fucked a mare, their size difference would most definitely complicate things.

“Hmmm…” Big Mac hummed while he looked around. Then he saw the solution, if he put Sweetie Belle on the wash basin, he would be able to fuck her quite happily from behind.

With a surprised yelp, Sweetie Belle was picked up and then situated between the two sinks; where there was a perfect flat area for her to lie down on. This also gave the added bonus of the two of them being able to watch each other in the mirror as they fucked. Big Mac gently pushed Sweetie Belle down so she lay flat with her hooves underneath her, her ass just sticking out over the edge of the wash basin.

He then proceeded to stand up above her, towering over her like a Titan, making Sweetie Belle feel just how utterly under his power she was right then. And it kind of thrilled her; after all, she felt completely safe with Big Macintosh. He would most likely abort this way before she would ever ask him to do so.

“Ya ready?” Big Mac asked Sweetie Belle in the mirror.

As Sweetie Belle looked back at him, she let out a little moan of anticipation, “oh yes, and please do give this some real effort. I’m quite flexible you know.”

“Once Ah know it’ll fit at all,” Big Mac said and brought the flat tip of his cock to her puckered little anus.

Both Big Mac and Sweetie Belle took a deep breath in anticipation. And then he pushed forward, but instead of entering her, he only made Sweetie Belle glide across the counter top. He quickly brought a hoof to her shoulder, dragging her back to her original position and then pinning her in place with both of his powerful front hooves.

Once again feeling the enormous strength of the stallion who was about to mount her, made Sweetie Belle shiver in anticipation. The contact between the two of them where he gripped her shoulders seemed to heat up as if electricity was shooting between the two lovers.

With Sweetie Belle now firmly secured in place, Big Macintosh started pushing forward again, rocking his hips, and massaging her reluctant anal sphincter with his cock.

“Harder,” Sweetie Belle ordered him from below.

As ordered, Big Mac leaned even further forward, increasing the pressure on her asshole. Sweetie Belle grunted and squeaked below him, but she wasn’t telling him to stop. If anything, Big Mac could swear he felt her press back against him.

“Harder, Big Mac! I know you’re holding back!” Sweetie more or less yelled up at him.

With that, Macintosh gave a loud snort, clenched his teeth together, and really laid into Sweetie Belle. A pained little squeak escaped her, and he was just about to pull back and say this wouldn’t work, when the first inch of his shaft was suddenly and quite brutally forced into her back door.

Sweetie gave a cry of pain, and desperately clung onto Mac’s front hooves. Big Macintosh looked down in wide-eyed shock at what had just happened, and started to pull back out. Only for Sweetie Belle to quickly reach up with one of her front hooves and grab onto his pelvis, keeping him in place.

“No!” she forced out through clenched teeth, “stay where you are!”

“But-”

“Yes, butt!” Sweetie hissed. “As in, the butt you’re going to fuck!”

“Sweetie! This is… we oughta stop! I’m too big for ya!” Macintosh protested.

“Naha… it’s… it’s already starting to hurt less,” Sweetie Belle panted. It was a lie, but Big Mac didn’t need to know that. “Just give me a little time to… adjust.”

“Okay…” Mac said reluctantly.

Although he had to admit, if Sweetie Belle’s little pussy felt spectacular, then her ass was nothing short of Elysium made flesh! Only that little inch he had managed to force into her was pulsating with a pleasure he had never experienced before.

“Okay,” Sweetie Belle suddenly said, her voice still sounding a bit squeaky, “keep going…”

Now having a small indication of what was awaiting him inside of Sweetie Belle’s tight little plot, he was feeling a lot more enthusiastic about the prospect of pushing in deeper. With more eagerness, Big Mac once again used his considerable strength to force his way further into the soft and supple flesh of Sweetie Belle’s ass.

Sweetie Belle meanwhile was biting her lower lip to the point that she was almost bleeding, and still she could not keep from grunting and moaning in pain. Even though she could feel the slickness of the lubrication working its magic, she was in quite a lot of discomfort. The enormous difficulty Big Mac had at pushing forward into her should have been an indication to stop. But Sweetie steeled herself and took it; she could after all feel her reluctant ass slowly but surely give way to Big Mac’s well-oiled shaft.

As more and more of that wonderfully pulsing stallionhood penetrated her spasming and clenching rectum, it screamed in protest. Then suddenly, almost a quarter of Big Mac’s shaft abruptly sunk into her ass in one fluid motion, several sphincters in her colon having given up their attempts at resisting the intrusion and instead conformed to the invasion in Sweetie’s asshole.

“Wow!” Big Mac exclaimed, almost dizzy from the sheer pleasure coursing up his pulsing stallionhood, which was now buried quite a respectable way inside Sweetie Belle’s tight little back entrance. “Oh, Luna’s teats! Ya feel...ngh, fuckin’ fantastic, Sweetie Belle!” Big Mac proclaimed ecstatically while he started rocking his hips back and forth, slowly moving his massive cock inside of the tight and mind numbingly pleasurable tunnel of lewd wetness and all-consuming warmth.

Finally Sweetie Belle managed a weak grin. She was still in pain, but it was nowhere near as bad as it had been just a moment ago. She took a large shuddering breath, realizing she had been holding it for quite a long time. Her burning lungs gulped down the sweet cool air, making her discomfort subside even more.

Big Mac could feel the petite little filly beneath him finally starting to grow less tense, even as he shifted his considerable girth back and forth inside of her. Still he had to use a substantial amount of strength to move his cock even a little bit inside Sweetie Belle’s asshole. She was so tight; so gloriously, wonderfully, euphorically tight.

As Big Mac was washed away in a sea of ecstasy, Sweetie Belle lay beneath him, whimpering as each powerful thrust into her sent a new spike of pain through her body. And still she did not cry out for him to stop, even as she felt how he began to fuck her harder and more insistent with each passing thrust.

Big Mac meanwhile couldn’t believe it; it was just getting better and better. There was no question any more, this was the best sex he had ever had. And it was with Sweetie Belle, a little filly that he had thought to be so innocent and pure.

Then his eyes shot wide open as another plateau of pleasure was reached. His medial ring was popping in and out of her tight little overstretched sphincter with every unyielding thrust. Big Mac looked down in wonder at the spectacle, but what he saw below wasn’t the happy little filly he had fucked earlier. She was biting her lip to keep quiet, her face was scrunched up in what could only be agony, and there was a small tear running down her cheek.

Big Mac froze, half his impressive length buried inside of Sweetie’s quivering asshole. Oh by Celestia! Big Mac thought guiltily as he realized what he was doing. He had lost himself in his own euphoric pleasure; he had never lost control like this before. Usually he was a very tentative stallion to his mares; trying to make sure they felt as much pleasure as he did. And for the last, Big Mac didn’t know how many minutes; he had been railroading Sweetie Belle in the ass, completely lost in his own desire. Quite frankly he had been brutally pushing further and further into the little white filly without mercy.

He took a deep breath and looked down at Sweetie Belle. She lay beneath him, breathing heavily and clutching his front hooves for support while she waited for the next thrust into her heavenly tight asshole. No, it doesn’t have to be like this. I can make this a lot more pleasurable for her, and still get what I want for myself, Big Mac thought, and with his mind made up, he carefully rolled Sweetie onto her back, locking eyes with a very surprised Sweetie Belle.

“Big Mac?” the little petite filly asked in worry, still a bit out of breath. Had she done something wrong? Didn’t he like fucking her anymore? She had been as quiet as possible, and she had let him do anything he wanted to her. Just like the magazines told her to do if she wanted to keep her stallion happy.

“Ah’m stayin’,” Big Mac assured. “Don’t worry.” Big Mac said and leaned down, he had to bend his back rather awkwardly since his cock was still half buried in her ass hole. But he still managed to capture Sweetie Belle’s lips in a tender and loving kiss. He poked her lips with his tongue and she let him enter, their wet muscles coming together for but a moment before Big Mac much bigger tongue overpowered hers completely. His tongue reaching deep into Sweetie Belle’s mouth, exploring and ravaging her, sending waves of pleasure into her brain.

He let go with his right hoof and slowly trailed it down her side until it situated itself between Sweetie Belle’s widely spread legs. Softly and tenderly he started stroking her velvet nether lips with the tip of his hoof.

Sweetie Belle couldn’t help but arch her back a little bit at the wonderful contact, the delightful pleasure it sent as he caressed her vaginal entrance so tenderly, Big Mac’s hoof moving up and down the length of her slit several times before he settled over her swollen clitoris and started massaging it lovingly. She had been moaning happily into Big Macintosh’s mouth, but when he started massaging her clit, it took barely a minute before she broke the kiss, crying out in pleasure while the orgasm rocked through her trembling body, Sweetie’s back rising off the wash basin as she tried to force Big Mac’s hoof to grind against her clitoris harder.

As Big Mac gently brought Sweetie Belle down from her orgasmic high, softly massaging her pussy and clitoris, the green eyes of Macintosh and Sweetie Belle met each other, each shining brightly with desire and love.

“Sweetie… Yer beautiful,” Big Mac said dreamily, making the little filly beneath him blush at her stallion’s praise. “An’ ya feel so good...I can’t describe ya. Ah never had a mare that feels...even half as wonderful as you. Even yer big sis...doesn't come close,” he continued with a broad smile.

"Really?" Sweetie Belle whispers while she smiled back up at him, and he knew it was time. With a node, Big Mac brought his hoof back to her shoulder grasping it firmly but gently. Then he pulled out a bit from her asshole before pushing in again, slowly but surely starting to once again fuck Sweetie Belle in her anus, although being much more mindful of her this time around.

Sweetie Belle immediately moaned, but not just in pain this time. There was still a lot of strain put on her from his considerable girth, but besides that and the little spike of ache that every other thrust caused her, it was nowhere near as bad as it had been. And she could most definitely feel an ember of pleasure from Big Mac’s wonderful stallionhood getting pushed in and out of her tight little anal sphincter.

Taking a leaf out of Big Mac’s book, Sweetie Belle brought her hooves down to her marehood. She used one hoof to stroke her velvety pussy lips, while the other massaged her clitoris in firm confident strokes.

Sweetie couldn’t help but moan loudly now, the pleasure coursing through her from her own masturbation, plus the equal measures of pain and pleasure coming from Big Mac fucking her in her ass. It all somehow mingled into an altogether new and wonderful feeling inside of her burning core.

Big Mac looked down at the little filly while he continued to fuck her gently but firmly, the expression of pure bliss spread across her face was one of the most beautiful things he’d ever seen. He leaned down again, even if it made his thrusting a bit harder to accomplish, and captured her lips in another wet and slobbering make out session, both of them moaning into each other’s mouths, as they slowly rose together on an endless tidal wave of pleasure.

The minutes rolled on as Macintosh continued to penetrate Sweetie Belle’s wonderful little backdoor. He had his head resting against the mirror now, sweat dripping off his body, his eyes closed to be able to enjoy every single thrust into his wonderful little filly friend.

Suddenly he heard a faint slap. His eyes shot wide open as he looked down in astonishment, only to see his next thrust bearing his entire stallionhood inside the petite white unicorn. Sweetie Belle’s wonderful ass had swallowed his entire, quite considerably sized cock, all the way to the hilt.

Mac and Sweetie once again locked eyes, both as surprised as the other at this development. After a few more thrusts, which were each accompanied by the wet slap of Big Mac’s hips meeting Sweetie Belle’s plot, they both smiled at each other.

“Big Mac…” Sweetie Belle panted, “you are inside of me… completely inside of me… it feels so good… your cock feels so good… I love you so much, Big Mac… please take me as your special somepony!”

“Oh Sweetie…” Big Mac replied, interrupted only by the slapping sounds of his thighs and his own strained breath, “Yer...yer wonderful, an’ beautiful…no filly ever felt…nice as you do. Of course yer my special somepony!” he finished, seeing how he liked the feel of saying it.

“Gaaah!” Big Mac then roared as his semen started to pump into Sweetie Belle’s tight ass. He desperately and sporadically continued to thrust into her while he came, trying to prolong his pleasurable apex as long as he cud. With a final thrust, he hilted himself inside Sweetie Belle and stayed there, barely supporting himself on shuddering back legs.

Finally they gave way, and he fell back on his plot, his cock popping out of Sweetie’s ass with a wet slurp, followed by his semen gushing out of the still widely gaping hole. He looked at the lewd display in both bewilderment that he had actually fit inside her so completely, and no small amount of pride that Sweetie Belle had been able to take him like she had.

Sweetie lay panting on the wash basin, her rear leg twitching sporadically after the absolutely mind-blowing fucking she had just received.

Big Mac rose up again on shaky legs, before moving over to Sweetie Belle. She was barely able to lift her head to smile at him, but smile she did. With a mischievous grin Big Mac lowered himself towards Sweetie’s crotch once more, using one hoof to spread her legs wide again.

Sweetie Belle looked up in surprise, not knowing what was happening, and then gasped out as Big Mac’s entire mouth encased her nether lips in a deep lewd kiss. “Ahhh!” Sweetie cried out in pure pleasure as the great big stallion pushed his tongue deep into her pussy. His tongue wiggling inside her quivering vagina, in dexterous displays no cock could ever hope to imitate. He could still taste himself inside her, but Big Mac didn’t care. Sweetie Belle had not received an orgasm at the same time as he did while fucking her in the ass, so levelling the playing field was the least he could do for her wonderful gift to him.

“Oh! Yes, yes, yes!” Sweetie cried, writhing underneath his administration. “Right there! Right there! Oh, please yes! Oh! Oooooo! Yeeeees!”

Big Mac continued his lewd slurping as he completely ate Sweetie Belle’s privates out, her eyes having rolled into the back of her head, while she gasped, submerged in pure ecstasy.

Big Mac felt her filly juices running down his chin, while he now repeatedly licked along her pink slitted opening, before he once again covered her entire honeypot with his mouth, massaging her insides with his tongue, and using his upper lip to sensually stroke and massage her wet clitoris.

Sweetie Belle screamed to high heavens as the most intense orgasm she had ever felt rocked through her, her head whipping from side to side while she was babbled gibberish about fucking, sucking and things she should have no idea what they were at her tender age.

As the little filly finally came down from her orgasm, she could feel how Big Mac was kissing her tenderly along her inner thighs, giving her still quivering pussy lips a tender lick every time he changed from one thigh to her other. She lay gasping where she was, while she continued receiving tender love from her wonderful stallion. She was completely and utterly sexually satisfied, in a way she had not even been close to before in her life. Finally she gathered enough energy to lift her head and watch her red big stallion tenderly kiss her right inner thigh while he looked at her with a wide smile.

“So,” Big Mac asked in between kisses, “did ya enjoy me ruttin’ ya?”

“Big Mac,” Sweetie Belle said as she gave a loud satisfied sigh, “it was a pure delight giving you a blow job. Every time I felt your cock inside of my pussy, my whole body was singing in pleasure. Even the way you were fucking me in the ass felt good at the end…” Her eyes went wide with delight. “And, oh my gosh! Do you ever know how to eat my cunt out!”

Big Mac gave a little laugh at Sweetie Belle’s sudden use of a rather crude word. “Glad ya liked it, Sweetie, ‘cause no mare ever felt nice as you. Do ya...ya really think we’ll do this more?”

“Are you kidding?” Sweetie Belle asked in bewilderment. “You are the one I’ve always wanted to sleep with, every time I followed a stallion into the stalls. You were the one I’ve always dream about. You’re the one I wanted to get ready for, and you are the one I want to feel inside me again and again and again.”

They both smiled at each other. This was the beginning of a beautiful relationship: Big Mac could just feel it. But they’d have to keep it quiet for a long time still, or things would not turn out well. If the rest of Ponyville found out that they had become lovers, they would most likely throw him to the Timberwolves, no matter how much they try to explain things.

“So… what do we do now?” Sweetie Belle asked timidly.

“Well...gettin’ kinda late, so how ‘bout we wash up before gettin’ you home? Yer big sis is gonna worry before long,” Big Mac answered.

“I know, I know. And I brought shampoo and stuff for us to clean up." She shuffled a hoof guiltily on the ground. "I might have planned this out… having done this a few times already. But what are WE gonna do now? Are we really together? When can we fuck again? How do we make sure nopony else finds out and breaks us up because 'it's not proper for me to have a coltfriend yet'?" she finished, in a faint mockery of Rarity's voice.

Big Mac hummed in thought while he picked up Sweetie Belle and placed her on his broad back, together with her saddlebag. He continued to think while he pushed the door to the bathroom open, carefully looking out at the dark hallway outside. Yes, there is definitely no pony left beside us in the building.

“Well…” Big Mac began as he made his way down towards the shower Sweetie had indicated, “we got a shed way on the east edge of Sweet Apple Acres. Usually just keep tools there, some hay...bet Ah could do some work on it when Ah got the time.” He looked back over his shoulder grinning at Sweetie Belle. “Ya like that idea, Sweetie? A li’l love nest, sneakin’ over there and ruttin’ loud as we like, as long as we like? Nopony’d ever bother us that far out.”

“Really?!” Sweetie Belle exclaimed excitedly.

“Eeyup!” Big Mac said as he opened the door into the shower. “Anything we wanna do there, we can. Bring yer magazines too if ya want someplace to hide ‘em...or maybe use ‘em for ideas. Got a few ideas of my own on what to do with you next.”

“Like what?” Sweetie Belle asked questioning, a little grin across her face.

“Oh, no you don’t, Ah won’t spoil the surprise,” Big Mac said with mock sternness while he placed Sweetie Belle in the shower.

“Oh, come on!” Sweetie tried in a pleading tone. “You can tell me!”

“Nnnnope. Yer gonna have to wait an’ see, my naughty li’l filly,” Big Mac said while he turned on the water, taking a few seconds to adjust the temperature before grinning down at Sweetie. “But since ya ask when we can fuck again…”

Big Mac moved his left front leg, showing Sweetie Belle that his dick was once again fully stiff and ready.

“Wow! You can go again? This will be the fourth time!” Sweetie Belle said excitedly while she could feel her pussy quickly getting wet again, and not just because she was standing in the shower.

“When ya got two or three mares a night lookin’ fer a helping hoof, ya get good at keepin’ yer stamina up. And that ain’t even half as wild as you girls can get during estrus,” Big Mac said with no small amount of pride. “Can’t say I’ll go again after this, so what does Sweetie Belle want this time?”

Sweetie Belle squirmed a little bit as she thought about what she wanted, looking up at Big Mac a bit uncertain. “Would…” Sweetie began shyly. “Would it be okay if I gave you a blow job again? I’m still a bit sore in my butt and pussy.”

Big Mac only sat down and smiled, nodding approvingly to Sweetie Belle who immediately shone up at not being reprimanded for not giving Big Mac what she thought he wanted. So then with the enthusiasm only a filly could produce, Sweetie Belle leapt forward and closed her mouth around Big Mac’s generous stallionhood.

The big red stallion sighed contentedly as the little white filly started her masterful ministration of oral pleasure. Oh, she is so good at this… Big Mac thought with a grunt as he felt his cock hit the back of Sweetie’s throat, her wonderful little tongue slithering all over his dick, as if it had no higher purpose than giving him pleasure, curling around his shaft as she twisted her head from side to side, finding all the places that just made Big Mac want to cry for joy.

It was probably a good thing he had said this would be the last time for them tonight, or else he was pretty certain they would not stop until the Mayor’s office opened again tomorrow… or wait a minute, it’s Friday. They wouldn’t stop until it was Monday morning at eight o’clo-

Oh, FUCK! She is good!

****
The End
(for now at least…)
****

Author's Note

Well... more is to come I think, it's a one shot for now though.

Have a nice one! Leon out!

Oh! And many thanks for the help editing Mr VitalSpark! You were a blessing!
Now also with the talented help of Misharra, to make Big Mac sound even more like Big Mac! Many thanks for the help!