The Ol' Switcheroo!

Twilight Sparkle, inhabiting Applejack's body, rose the next morning as Applejack did: with the roosters. This time of the morning isn't supposed to exist, she thought as she rolled out of bed. She shook herself and tried to rid herself of morning grogginess. She had to have a clear mind for what was about to happen.

She was in such a hurry to start the day, she nearly forgot her hat in Applejack's room. I need to look the part. After she took a quick shower in the family bathroom (she made sure to be the first one in), she realized Applejack had no brush. But upon closer inspection, she concluded her mane looked just fine after toweling it off. I wish I could get away with not having to brush my mane...

Twilight rushed downstairs, grateful that she knew the layout of Applejack's farmhouse. She had to work quickly; dinner with the rest of the Apple family was awkward enough, and she did not want a repeat of it at breakfast. Disguising herself as Applejack was hard enough on its own, made all the more difficult by the thought of Shining Armour skewering her on his behemoth dick.

At the kitchen table, she helped herself to a quick breakfast of apples, candy apples, apple muffins, apple fritters, apple pie, an apple danish, and some apple juice. The next phase of her plan would be a tricky one. She crept back upstairs and waited in her room. A series of heavy hoofsteps on the wooden floorboards followed by the running of the shower signaled Big Mac's absence from his room. Twilight opened the door and headed into the hallway.

“Hey, sis, where ya goin'?”

Twilight sprung into the air and spun around. Apple Bloom stood behind her.

“Uh... nowhere,” said Twilight. “Just preppin' for a hard day's work.”

“In Big Mac's room?” Apple Bloom cocked her head.

“Yeah. He's got some uh... equipment I need.” In fairness to Twilight, this was not a total lie.

“For buckin' apples?”

Twilight shook her head. “The barn's really messy. I need to clean it up.”

“But we cleaned it just a month ago!”

Twilight glowered at Apple Bloom. “Yeah, well, it done got all messed up again. Stay away from it. I don't want nopony to get hurt.”

“What if ya need help?”

Twilight booped Apple Bloom on the snout. “Don't you worry yer little head about that. I'll be fine.”

Apple Bloom shrugged. “Okay. Breakfast?”

Twilight shook her head. “Had it already. It's a very big job, so I reckoned I'd get started early.”

“Okay. Well, I'm goin' to the clubhouse after eatin', then. Scootaloo's gonna take us over to Sugarcube Corner so Pinkie Pie can teach us how to be Cutie Mark Crusaders Party Planners! Yay!”

Twilight giggled and ruffled Apple Bloom's mane. “Go on. Get on with ya.”

With Apple Bloom gone, the shower mercifully running, and Granny Smith probably still slumbering, Twilight infiltrated Big McIntosh's room. She ignored the equipment she told Apple Bloom she would be getting. Instead, she headed for his night stand and opened the top drawer.

“Smarty Pants?” Twilight stood there and blinked for almost a full minute. “So that's where you got to... This is one side of Big Mac I didn't want to see.” She closed the drawer and continued her search. She rummaged through his belongings, finding nothing interesting, until she finally peaked under his bed. “Ah ha!”

Clutched in Twilight's forehoof was a box of Trojan Horse condoms. Twilight examined the back of the box. It read, “XXXL: Celestia's Stud of Choice.” Perfect. Hopefully these should fit Shining Armour. She grabbed a couple, stuffed them under her hat, and replaced the box in its hiding place. Hopefully the big fella doesn't notice the missing ones... On her way to the door, she nabbed a measuring tape. She had to know.

Twilight left the room just as Big Mac turned the shower off. Her hooves clopped on the stairs as she bounded down them. She waved goodbye to Apple Bloom and left the farmhouse, heading straight for the barn. It would probably be a few hours before her brother would arrive, and she intended to put that time to use.

If this would be her only opportunity to feel Shining Armour's cock inside her, it had to be perfect. She let herself into the barn and closed the door behind her. Fortunately, it was as tidy as Apple Bloom had claimed, so she would not have to spend any time actually cleaning it. She whiled away the time by gathering a few other things along with the measuring tape and the condoms into the barn's hayloft, as well as letting her imagination run wild with ways she would have sexual interhorse with him.

Her pussy tingled from the mere anticipation, but she willed herself not to pleasure it. The time for that would come soon enough. For once in her life, she was glad she had no magic. She was not sure if she could resist making a magic plot device in her estimations of her brother's likeness and rutting herself with it. It would have been good practice for the real thing, and it would help her get used to accommodating such a beast, but she wanted the fun of having to ease herself onto the real thing.

Twilight idly noted that the hayloft was unusually clean, as if somepony had been through it recently. She knew that had to be the place to do the deed. I can just remove the ladder after we've climbed up. It's the most risk-free, and I can use magic to clean up any mess we make tomorrow. With luck, nopony will even notice we were here. When she was sure she had completed her preparation, Twilight hid in one of the barn's stalls and waited.

At long last, the barn door opened. She peeked out from her hiding place to see Shining Armour. Alone. Twilight concealed a delighted squeal and trotted toward him, beaming. “Well, howdy there, Shining Armour!” She bowed. “Or should I say Prince Shining Armour?”

Shining Armour laughed. “Just Shining Armour is fine. Hey, I was told there'd be food here.”

“Oh, you won't have to worry about eatin',” Twilight said. She beckoned him toward the ladder. “This way. I've got a special surprise for ya up in the loft.”

Shining Armour arched an eyebrow, but followed anyway. Twilight made sure to climb the ladder first and “accidentally” give him a perfect view of her dripping pussy, swaying her hips much more than she needed to as she ascended.

When they reached the top, Twilight turned, removed her hat, and bowed low. “Well? Whatcha think?”

Shining Armour's eyes bulged. He noticed the pile of things Twilight had gathered. Namely the rope, saddle, and the condoms. “Applejack? What's all this about?”

“Do I really need to spell it out for you?” Twilight could have rolled her eyes. He could be so slow sometimes. “I wanted to make yer visit to Ponyville one to remember.”

“I think I'll remember it just fine already.”

Twilight sidled up to him and rubbed his chest with a forehoof. “Ever since yer weddin', I couldn't stop thinkin' about ya. Yer such a stud. They don't make 'em like that 'round these parts. I want to know what it's like to horse around with a mighty stallion such as yerself.”

Shining Armour pushed her a couple inches away with his magic. “That's the problem, Applejack. I'm a married stallion, and I'm not Captain of the Royal Guard anymore.”

“But ya did it with the Princesses just fine while at yer post!”

“H-how did you know about that?”

Twilight clapped her forehead with a hoof. “Come on. The Princesses are mares, too; they have their needs just as much as anypony else. Tell me: when's the last time ya heard of Princess Celestia in a relationship?”

Shining Armour sat down and avoided her gaze. “Point taken.”

“And furthermore,” Twilight said, “they're super duper powerful. They don't need much protection aside from ‘sausage wrappers.’”

Shining Armour grunted.

Twilight knew she had won the argument. “Besides, Cadance is the Princess of Love, ain't she?”

“Funny,” said Shining Armour. “I recall having a similar conversation with Twily a few minutes ago.” He glared at her. “Wait a minute! You two are setting me up!”

Oh, horseapples! Twilight did the only thing she could think of: She leapt forward and kissed him on the base of the neck, right where his mane was. She nibbled at him. Shining Armour froze, and Twilight inwardly jumped for joy. She had seen Cadance doing this countless times over the years, mostly when their parents were out. Those two usually disappeared for about an hour soon afterward, and Twilight had only recently realized why.

She slowly worked her way up the nape of his neck, kissing and biting, until she reached his head. Only stopping to softly nibble on the tip of his ear, she looked him in the eyes. “So, what do ya say, big fella?” Twilight turned and spanked her incredible ass, running her forehoof up and down it suggestively. “Want some nice, firm, fresh, juicy apples? Just this once, and nopony ever has to hear about it.”

Shining Armour shifted his hooves, but Twilight knew she had already won; the tip of his cock had ventured forth from its protective sheath. He scratched the back of his neck. “Well, if Twily was in on this, and Cadance is resting... maybe she's in on it, too. Come to think of it, she is rather kinky. I honestly wouldn’t put it past her.”

Twilight gave him a half-lidded look. “Not as kinky as me.”

A loud snort escaped Shining Armour's nostrils. “We'll see about that. Princess of Love, and all that.”

Twilight walked over to the ladder and pulled it up. “Can't have anypony disturbin' us, can we?”

“Nope.”

“Good.” Twilight took his forehoof in hers and steered him toward the bed of hay she had prepared. She pushed him down onto it a lot easier than she had anticipated. Wow, am I really that strong, or is Shining Armour a bit of a sub? Well, only one way to find out...

She bent down and brought her muzzle next to his balls. She cupped them and hefted them in her forehooves as she nuzzled them, taking in their musky scent. They were quite a bit heavier than she expected. I wonder how big his load is, she wondered as she put one in her mouth and sucked on it. She made sure to be gentle as she turned her forehooves' attention to his shaft. Somehow, it was not getting bigger or stiffer yet.

Twilight switched to the other testicle, making sure to give them equal amounts of love. Shining Armour still was not hardening, but his subtle grunting and louder-than-normal exhalations told her she was doing the right thing. When she was finished, she looked up at him and said, “What? Don't ya like this?”

“I do, but it takes me a while to get going.” He cleared his throat. “Look, when you've spent half your life guarding Princess Celestia, the sexiest mare in Equestria, you're trained not to pop a poner at the drop of a helmet.”

“I can see yer point.” Twilight looked glumly at him. Wait, I've got it! She stood on her hind legs and swished her forehooves in the air. “Yee-hoo! Raise this cock, raise this cock! One, two, three, four! Together, we can raise this cock! One, two, three, four!”

Shining Armour blinked at her. “Applejack? What in the name of Celestia are you doing?”

Twilight ignored him and rubbed his phallus. “Up, up, up, goes the shaft! Fill those blood vessels. Work it with me!” She guided his forehooves to his dick and motioned for him to rub it along with her. “Jerk it quick by the right—”

“Stop.” Shining Armour placed a forehoof over her muzzle. “This is doing the opposite of what you want it to. But... your flank. Cadance's is nice, but it's nothin' like yours. Yours is all big and firm-looking. Must be all that working out. I haven't seen one so nice since Princess Celestia's.”

Twilight blushed, even though her fine ass did not technically belong to her. “Why, thank ya. Years of applebuckin' will do that for ya.”

“I'd...”

Twilight giggled. Wow, his cheeks are so red! “You'd what?”

He opened and closed his mouth several times, but no words came out.

“Ooh, you want this in yer face, don't ya?” She turned around and wiggled her flank at him.

Shining Armour nodded.

“Well, ya happen to be in luck.” Twilight lifted her tail and pressed her marehood into his muzzle. In no time at all, his tongue lapped up her juices and tickled her pussy lips. But it never went any deeper. She moaned as he caressed her flank and kept licking, and she kissed and licked his stomach and cock head.

It already felt good, but Twilight needed more. She knew he was only teasing her, and that only heightened her arousal. Her mouth enveloped his cock, and she sucked it for all she was worth. She rubbed his balls like a treasure hunter rubbing a magic lamp, except instead of hoping to summon a wish-granting genie, she wanted to call forth a freakish, fantastic filly fornication phallus.

Still, her brother's meat refused to stand at attention. Enough of this, already, Twilight thought. She clenched her flank against his muzzle, taking advantage of her great muscles, and ground herself against him. Finally, she had broken through. Shining Armour's cock grew at an alarming rate, expanding, lengthening, and hardening. She wondered how getting an erection did not cause him lightheadedness. He groped her harder, squeezing her flank and burying his face into her snatch as far as it would go, his tongue probing her deeply.

Since Twilight was aligned perfectly with his cock, deep throating it was no problem. A good thing, too, considering it had already begun to make its way down her neck and into her stomach. Wow, he's incredible! she thought as his skilled tongue pleased her in ways she never thought possible, causing her to suck even harder.

And still his dick grew, its impossible to ignore girth straining against her throat, and it showed no signs of slowing down as it went all the way down her throat. But Twilight was determined to keep his cock in her mouth, no matter how big it got. She was in uncharted territory. She knew it was already a lot bigger than the Equestrian average, but she could not see just how big it truly was.

Part of her wanted him to reach his peak so she would not have to worry about it suffocating her, but she also wanted to see the look on Applejack's face when she learned exactly how much bigger than Big McIntosh Shining Armour was. Her lover grunted, the sound muffled by her clenching nethers, gave her flank a hard push onto his muzzle, and a final growth spurt shot through his cock, the increase in size sending a shock wave through Twilight's body.

Her eyes watered. It felt like she was doing it with two stallions at once. A combination of pleasure and pain tugged at her body. Shining Armour's forehooves on her flank and his expert tongue in her pussy hit all the right notes with her, giving her escalating sensations of ecstasy. She never even dipped; it only went up. When she and Applejack were fillyfooling, the pleasure she had felt came in highs and lows, but somehow Shining Armour knew how to keep her satisfied without even a slight hiccup.

It's a small wonder that he's good when he's been trained by Princess Celestia and Princess Cadance. He must be the best lay in all of Equestria! Twilight though as she fought to keep control. Her muzzle was right up against his balls, and she could barely breathe. She was completely and utterly skewered, and she could have sworn that his throbbing cock head was pushing against the bottom of her stomach.

Despite the pain of swallowing something so enormous, Twilight's mind was quickly succumbing to the sensations of passion her body was sending her. She gave a muffled cry, bucked her hips into Shining Armour, and came hard. Her body shuddered as the throes of her horsegasm wracked her. Every nerve sent shocks of intense pleasure into her brain.

Instead of feeling the least bit satisfied, she wanted more, but that would have to wait; after such a powerful climax, she had to unstick herself from Shining Armour before she lost consciousness. She pushed against his nice, hard body and pulled back, making sure to stay aligned with his cock. There was no way it would bend.

Realizing what Twilight was doing, Shining Armour grabbed her by the waist and pulled. Her eyes bulged as she saw his cock exiting her. It was more majestic than she ever dreamed. The black and pink spotted shaft was thicker than her forehoof by a good margin, and huge, pulsing veins throbbed all over it. The impressive specimen looked like it did bodybuilding, even if it was not physically possible.

As the shaft withdrew from her mouth, Twilight thought of a parlor trick where a clown pulls an endless string of handkerchiefs tied together from his sleeve as the thick medial ring passed her stretched lips. She could not believe how big it was, as the head was still somewhere in her throat. Eventually, the cock head popped out of her mouth, and she took her first good look at his dick.

It went almost all the way up to his body, stopping just short of his neck, and it was almost as girthy as one of his wide forehooves. I deep throated that? Holy Celestia! Twilight pulled herself back another few inches. Her head was right above his. She took it in her forehooves and kissed him.

She tasted her juices on his tongue, and she almost came again. Leaning into their kiss, she moved her tongue slowly in his mouth, wanting something less intense after choking down such a beast. Shining Armour reciprocated and stroked her mane and neck. Time seemed to stop, and all of her other senses were dulled as the relaxing rhythm of their kiss took hold.

Twilight loved the feeling of being in his hooves more than she guessed she would. She wanted to keep kissing him and never stop, but she had bigger things on her mind. His cock, for instance. She lifted her head and sucked on his lips as they parted. Still connected by a single strand of saliva, she beamed down at him warmly. “You are beyond amazing. Where did you learn how to please a mare so good?”

He gave her a smug grin. “Princess Celestia's been with quite a few stallions over the thousands of years she's been alive. When part of your duty is 'keeping her company' on cold, lonely nights, and when you date and marry the Princess of Love, you learn a few tricks on the way.”

“Mmm...” Twilight stroked his mane. “You should write a book.”

“Already am,” he said. “Cadance and Princess Celestia are helping me. It's called The Kamare Sutra.”

“I'd like a signed copy when it's finished,” Twilight purred.

“Really? I didn't take you for much of a reader, Applejack.”

Twilight snickered. “I'm full of surprises.” She gave him another peck, stood up, and ambled over to her stack of “goodies.” She grabbed the measuring tape. “First, we need some numbers on this here schlong of yers.”

He sat there while she measured it, making sure the end was right at the base. When she reached the end, she let out a long gasp. At its fully erect length, Shining Armour's titanic horsecock stood just shy of a whopping twenty inches. He was twice as big as some less fortunate stallions out there.

Twilight took a moment to bask in its glory. “Whoo whee... Shiny, that just ain't right. No stallion's supposed to be that huge.”

“And yet you swallowed it all,” he said. “That doesn't happen often.”

“Now I know why I could hear Cadance screaming from five towers away.”

“We were that loud, huh?”

Twilight gave him a bemused look. “Uh-huh.”

“I guess that's why you've been interested? Had to see for yourself?”

“Eeyup,” Twilight said. “So, how was I? Was I any good?”

Shining Armour snorted. “Are you kidding? That was some of the best fillyatio I've ever had!” He gave her a long, deep kiss before saying, “Now I hope you're ready to finish what you've started.”

Twilight nodded. She licked his cock from the tip to the base and retrieved the rope. When she began tying his hind legs together, Shining Armour gave an appreciative whinny. So I was right. He does like being the sub. She wished he would stop her, take command, but he let her do whatever she wanted like an obedient sex slave.

When she had finished, she looked at her handiwork. Shining Armour was completely bound. His hind legs were tied, the rope wrapped around the base of his shaft and his balls, then progressed around his body, where his forehooves were tied behind his back. The rope finally wound its way around his neck, leaving about a foot for her to tug on. She smiled and grabbed one of the condoms, ripping it open.

With her brother's cock already slick with her saliva, she had no trouble wrapping the rubber around it. It was a tight fit, but the seventeen inch condom stretched enough to accommodate him. She took one last look at his member before she yanked on the rope, forcing Shining Armour to sit up and point his cock at a vertical angle. Applejack's gonna hate me for what I'm about to do.

Twilight kissed him once again and climbed up the hay bed until her pussy lips were touching the flared head of Shining Armour's poner. “Here goes nothin'!” She lowered herself, and the horsecock pressed against her entrance. It was significantly wider, but she already knew that.

“Hey, Applejack, be careful,” said Shining Armour. “Cadance and Luna sometimes have trouble, and they're bigger than you.”

“I know what I'm doin'!” Every mention of Cadance's name spurred her to greater heights. Princess of Love my hoof! I'll show him. But she would not be able to do anything of the sort until she got him inside her.

A sly grin crossed her muzzle. She rubbed her maregina against his cock, trying to warm it up to the idea of granting it entrance. The repeated motion coupled with the gradually increasing pressure she put on her nethers soon paid off; she felt herself expanding, her gorgeous flank slowly spreading, as her lover's cock ponytrated her.

Her eyes rolled into the back of her head and she whinnied. Her pussy grabbed his cock with the grip of the mighty Thorse himself. Twilight hastily grabbed the rope as her erotic equine ecstasy escalated inside her. She pulled, tightening the rope around his neck and constricting the rest of his body.

Shining Armour whinnied and started thrusting upward. Twilight, the rope still in her mouth, smiled down at him and eased up when he was moving at the speed she desired. Only a few inches were thrusting in and out of her, with the head never leaving her, but it was all she needed as she continued to impale herself on him.

Nerve endings she did not know she had burned with stimulation as she absorbed inch after inch. By the time she reached the medial ring, she figured she was about a foot deep. She had taken things that long before, but never that thick. She could finally lean forward and plant her hooves in his shoulders.

Twilight stared into those blue eyes of his hungrily and started to ride him. She did not need to give the rope another tug to make him thrust harder. He knew exactly when to thrust, too. As she was coming down, he would raise his hips and give her a few small humps. She grunted through the rope as he went deeper and deeper.

Somehow—probably due to her lover's expertise—she did not tear anything. Her body constantly felt like it was about to be ripped in two, but it always managed to barely hold itself together to electrifying results.

Twilight leaned back and planted her hind legs. She was not sure if her body had the strength to do this, but she knew Applejack's certainly did. She spat out the rope, took her Stetson hat off, and waved it in the air as she bucked up and down wildly. “Yee haw! Ride 'em, cowpony!”

As she rode, Shining Armour abandoned his smaller thrusts. He showed off his amazing flexibility and strength by bucking into her with tremendous force, despite being hogtied. Twilight did not break a sweat as she gave it all she had, humping up and down with reckless abandon now that her love tunnel had adjusted to the gargantuan invader.

Somewhere during her dick riding, she had taken her brother's cock all the way to the hilt. They both moaned, whinnied, and snorted as they made the whole barn shake. Twilight was relentless, always going as high as her legs could stretch before going all the way back down, and she never slowed.

Twilight had lost track of how many times she came. She felt like she was having one unending horsegasm as she climaxed over and over again. She had been riding him for a good fifteen minutes, and he still astoundingly had yet to cum himself. But the beads of sweat gathering around his contorted face told her that moment was about to arrive.

“Are—ya—gettin'—close?” she asked as she already felt his cock getting bigger, preparing for release.

Shining Armour grunted and nodded. “A-A-Applejack... y-you might w-wanna get off... I'm a-about to b-burst!”

“Good.” Twilight leaned forward and bit his ear as hard as she could.

Shining Armour's eyes bulged and he gave his loudest whinny yet. A huge shot of his seed blasted against the condom, sending it ballooning inside Twilight. He thrust into her again and again as his cock continued to spurt.

Twilight's already over-full pony pussy could not take the extra mass, so she reluctantly dismounted. Pleasure still rendered her giddy, even as she had less and less of her lover inside. When she finally withdrew, she gasped. Shining Armour was still groaning and cumming, and the condom already held a remarkable amount of horse splooge.

It had grown to the size of her head as still more semen filled it. Rather than leave him high and dry, she wrapped her forehooves around his cock and jerked it as fast as she could, milking him. Shining Armour gave a grateful moan as his horsegasm came to an end. There had to be at least a litre of jizz inside that rubber. It hung halfway down his shaft like a white water balloon.

Twilight gawked at it. “That's a lot...”

“Impressive, huh?”

Still staring, Twilight said, “Do ya always cum that much?”

“Yes, yes I do.” Shining Armour giggled. “You should've heard Princess Luna's yelp of surprise the first time it happened. She wanted me to cum right in her face, too. I tried to warn her, but...”

Twilight whistled. Her pussy was raw and aching, but it was the good kind of ache. The I-just-took-a-cock-so-insanely-huge-Applejack's-gonna-walk-funny-for-a-month kind. “Good thing I put that on. That would've caused such a mess.” She carefully used her hooves to take the protection off, making sure not to drop it before she could tie off the end. Funny... he should be going soft by now.

“So, what's next?” he asked.

Twilight could hardly believe her ears. “N-next?” She tied the condom off and baubled it in her hooves. According to her estimations, it would have taken three or four normal stallions to produce that much foal fertilization fluid. To think there could be more... “W-when ya say next, do ya mean round two?”

“Of course,” said Shining Armour, his cock still throbbing. “It took a while, but Princess Celestia trained me to do it. She gave me some excellent, uh, 'motivation,' heh, heh, heh.”

Twilight gave him a sly grin. So that's why we didn't have many evening lessons after he got promoted. She picked up the saddle.

“So, what do you wanna do? More of the same, or—”

“I want you to put on that there other cock wrap and ride me like the dirty farmpony I am.” She hastily affixed the saddle to her back and presented.

“Come again?”

“Yes, that, too, after you're done givin' it to me good.”

“Like... on top?” Shining Armour's voice was soft and stunned. “I'm never on top.”

Twilight rounded on him. “Well, ya should be! It's that dang trainin' of yours! Whipped is what ya are. Look at ya. You've got one of the biggest dicks in Equestria and the skill to back it up. Not only that, but yer big and strong. And how do they treat ya? Like one of them 'real doll' things. Disgusting. Ya need to take a stand and put 'em in their place, starting with me.”

“But—”

“You can't be filed on the bottom shelf forever. Sometimes, ya need to be top shelf!”

“Top shelf? Bottom shelf? What in Equestria are you talking about?”

Uh oh, think fast! Twilight picked up the rope and gave it a hard yank, bringing Shining Armour to the floor. She rolled him onto his back, grabbed the second condom, put it on him, and lined her marehood up with his cock head. “They're so used to bein' in control. You need to take that away from 'em. Yer a Prince, for pony's sake!” She started teasing his flared head with her pussy lips.

“Can't... disobey...” Shining Armour pathetically tried to ponytrate her, but every time his head threatened to enter her, she moved forward just enough to prevent it while still teasing him. “Let me...”

“Nuh-uh.” Twilight shook her head. “Yer gonna stay like this until ya do somethin' about it. You've got size, strength, and magic.”

“I can't!”

“Well, that's too bad.” Twilight teased his shaft with her tail by lightly brushing it. “So much for a Captain of the Royal Guard or a Prince. All's I see is a big, weak, overblown sissy. Yer a worse Prince than Blueblood.”

Twilight immediately knew she had gone too far. Shining Armour roared, and in one powerful flex of his legs, the rope snapped like an elastic band. He picked her up and slammed her down on the bed of hay. Even with Applejack's body, Twilight could not out-wrestle him.

“Worse. Than. Blueblood?” Shining Armour pressed his forehooves into the saddle as he lined himself up with her entrance. “I'll show you what a Prince can do!”

Twilight was beside herself with glee. She had finally done it. She was pinned beneath her brother, and she could do absolutely nothing to free herself. He would have his way with her at last.

“Oh, one more thing. I'll be needing this.” He snatched her cowpony hat and put it on his head. In one thrust of military precision, he buried himself inside her to the hilt. Twilight gasped as his powerful cock filled her insides once again, and came harder than ever.

Twilight's limbs thrashed about as she lost all control over her body. She clamped the horsecock in her with enough force to bend solid steel. Shining Armour grunted and somehow withdrew his phallus almost all the way out, despite his lover clenching it for all she was worth. He slammed back inside, forcing his way through the tight space.

Twilight's eyes rolled in their sockets. She could do nothing but climax again and again as her brother rhythmically rutted her repeatedly. “Keep goin',” she managed to moan.

“Oh, you like that, don't you?” His voice was strained, but even. “Farmpony flank is so good. It's so firm.”

Twilight had no idea how long he had been pounding away at her. It had been steady and hard, and she had almost blacked out from sheer ecstasy many times. Finally, without warning, he flipped her onto her back. Sweat covered his face, which looked strained. I can't blame him after all this, she thought.

“Hey, Applejack?”

“Y-y-yes?”

He smiled at her. “Thanks.” He bent down, and their lips met. His tongue lacked the disciplined movement it once had, and now writhed wildly in her mouth.

Twilight wrapped her forelegs around him and leaned into their kiss. She noticed his movements becoming erratic, too; they were much smaller thrusts and came faster than before. Her tongue moved with as much passion as his.

Shining Armour pulled back. “I'm cumming, and it's huge.” He withdrew completely and shoved the head in her face. “And you're gonna take it all, you dirty whorse!”

Taking her cue, Twilight ripped the condom off with her teeth and turned all attention to the volcano on the verge of eruption staring her in the face. She placed her hind hooves near the base and her forehooves close to the middle, and opened her mouth.

He grabbed her head and pushed his cock inside. He came the second it entered her mouth. The first shot was so huge, it filled her mouth completely, and excess splooge, with nowhere else to go, leaked from around her lips and shot out her snout.

Twilight gulped it down as quickly as she could. The taste was beyond anything she had hoped for. It tasted like semen, but it had that added flavour that could only come from a stud like him. She milked his cock with all four hooves as salvo after salvo blasted its way down her gullet.

Her stomach began to expand in order to accommodate the copious amount of fluid. When she felt she could not take any more, she pushed against his forehooves, and he allowed her to remove the cock from her mouth, just in time to receive another rivulet right in the face. She closed her eyes and felt at least half a dozen more shots pelt against her before her lover's climax subsided, the dregs of it dribbling down her stomach.

She wiped her eyes and muzzle with her hooves. Her entire head and mane were soaked with semen, and she looked like she had just gained thirty pounds. I think I just swallowed a month's worth of protein, she thought as she took off her saddle and sat up.

Shining Armour lay on his back, panting, as his member finally began shrinking back to its flaccid size. “That sure was something. I've never looked at sex this way. Thank you, Applejack.”

Twilight stood. She could barely walk. “Not a problem, BBBFF.”

“BBBFF? That's what Twily calls me.”

Twilight froze. “Uh, right! She told me before the weddin'. Mine stands for... uh... Big Boner, Best Fuck Forever.”

Shining Armour giggled. “I'll tell that one to Cadance. Hey, I'm really hungry. Can you get me something to eat?”

Twilight pondered for a moment. “I'll fetch a bucket of fresh apples from the pantry before I go. I'll place 'em at the barn door, then go wash up.” She approached him and gave his muzzle a lick. “Ta-ta, lover boy.”

“Bye.”

Twilight took her hat and left the barn. She would have to avoid a run-in with Granny Smith. Unfortunately, Granny was just the pony she found in the farmhouse's lobby. She sat in her rocking chair.

“Applejack?” Granny said. “What in the hay's goin' on with yer face?”

“Uh, got flour in it,” Twilight lied.

“Flower, ya say?” Granny took a sniff in her direction and narrowed her eyes. “What's that smell? Flower don't smell like that, and it don't drip like that, neither!”

“It's uh... gravy!”

“I thought you said it was flower.”

Twilight forced a panicked giggle. “It's flour-gravy. New recipe. Yep. Didn't work out. Gotta go shower now. Bye!” She galloped past Granny and up the stairs toward the shower.

Nopony else was home, so she cleaned herself up without a hitch. By the time she went downstairs, Granny was having her late afternoon nap. Twilight breathed a sigh of relief and left the farmhouse, her gait weak and wobbly. Her wild sexcapade with her brother replayed itself over and over in her head. She was growing horny again just thinking about it. At long last, the library was in sight. Applejack joined her from a side street when she was a block away.

“How'd it go, Twi?” she said.

“Amazing,” said Twilight. “Almost twenty whole inches! Can you believe it? I didn't know a pony could even be that big!”

“Almost twenty, huh?” Applejack looked at the ground as the neared the library's door. “I guess I lose, then. Big McIntosh is only eighteen. Thick as a tree trunk, though.”

Twilight hopped up and down and clapped her forehooves. “Same with Shiny! But don't feel bad. Eighteen inches is huge, too. Come on. I don't think the spell will last too much longer. We should hide in the basement until it reverses itself.”

“Right.”

When they reached the door, it opened before either of them could do it. Inside stood Princess Cadance, her face a mask of cold fury. Her two Pegasus Royal Guards guards flanked her. “Twilight,” she said, looking at Twilight in Applejack's body. “Applejack.” She looked at Twilight's body. “You have been very naughty little mares. Thanks to you, there's been more incest going on in Ponyville than at Casterly Rock!”

The End?