Runneth Over

Knock Knock Knock-Knock Knock

Having rapped on the door of the Castle of Friendship, Shining stepped back and smiled over at Cadance. “Been a little while since we’ve been here ~ huh?”

Cadance nodded as she peered up at the towering, crystalline keep. “Too long - then again, it’s not like Canterlot doesn’t keep her busy.”

Shifting her weight from one side to the other, she waited alongside her hubby at the entryway. She would have liked to say that the visit with Twilight was just for fun, but there was a bigger reason for going to see her sister-in-law - a big reason. Peeking down at herself, she lifted a hand and caressed her distended belly.

Like with Celestia, her pregnancy had been progressing much, much faster than normal - to the point where, if for no other reason than to have some peace of mind, she’d decided to seek Twilight’s input on the matter. Even though she felt perfectly fine and had been given the all-clear by not two but three of the finest maternity doctors in all of Equestria, having one of the foremost experts of magic give her a once-over wouldn’t hurt anything - that and it was an excuse to spend some time with one of her oldest and most trusted friends. Hearing footsteps rapidly approaching the foyer from just inside, she locked arms with Shining and shied back.

“Shining, Cadance, I’ve been looking forward to…” Twilight began and subsequently trailed off as she flung the door open and gazed out at the couple.

Without skipping a beat, not caring that her friend’s focus had been torn between her mountainous bosoms and rounded stomach, Cadance shot forward and snared the mare in a hug. “I’ve been looking forward to seeing you too!” she chirped, entombing the smaller Princess’ face in her cleavage. Pulling back as quickly as she’d started, she quirked a brow. “Somepony’s hitting their alicorn growth spurt!”

Being the youngest alicorn and only having recently ascended, it would be some time, possibly centuries, before Twilight reached her or Celestia’s size. As she gazed down at the mare, she couldn’t help but marvel at the disparity between them. In an ironic sort of way, there wasn’t much that had changed since her days of foalsitting the little, nerdy mare so many years ago.

Twilight’s appearance was striking in its own right, having a modest chest, meaty thighs, and a respectable rump, but she looked downright flat-chested compared to herself. The weight she’d packed on had filled out her figure substantially, her caboose struggled to fit in most chairs, Her tits were roughly the size of small beach balls - speaking of which…

Twilight tore her eyes off Cadance’s chest and blushed. “W…well - ya know, maybe a little…”

“You have gotten a bit bigger,” Shining laughed, throwing his arms wide and embracing his sister. “Just look at you, you’re almost as tall as I am!”

Giggling like a schoolfilly, Cadance watched as Shining placed a hand on his head and inaccurately brought it over Twilight’s crown. Though he was shorter than her by two or three inches, it was endearing to see him still acting like the bigger bigger brother. While the siblings playfully bickered about who was taller than who, her eyes wandered down Shining’s back and to his deliciously toned tush.

A subtle ache crept into her marehood, she could feel her nipples hardening against her bra, and her pulse steadily increased as an assortment of very inappropriate images danced through her head. While Shining wasn’t as young as he used to be, having white peppered through his azure mane and tail, he was still a paragon of virility. His broad shoulders, his youthful exuberance, and his long, thick, incredible…

“L…let’s get inside,” she stammered, shaking the intrusive and scandalous notions from her head.

Walking inside after Twilight and Shining, she pulled the door closed behind herself and gave a sigh of relief. Being carrying a foal was, in a word, one heck of a roller coaster, although this pregnancy was different from her last two in a number of ways. For starters, she’d ballooned in size way faster than she should have - secondly and a bit alarmingly, her hormones had been running absolutely wild. She was a healthy, passionate mare by any metric, yet her libido hadn’t been so strong since she’d been a rambunctious teenager - heck, it may have been worse than when she was a teenager.

Twilight trotted ahead with Shining at her side, and led the way. “And you said this all started two months ago?”

“A month and three weeks, but who’s counting,” Cadance tranquilly replied.

Glancing back at her, Twilight narrowed her eyes. “You know I’m going to need to know the details ~ right?”

Visibly stiffening, Shining nearly stumbled over his own feet. “A…all the details?”

“All the details,” Twilight flatly repeated. “Listen, I may not be a medical doctor, but I won’t be able to make heads or tails about what’s going on unless I can account for all the variables - oh, and I’m going to need to perform an exam and get a few samples.”

“Samples?!?” Shining squawked. “Twilight, I am not about to -”

“Shiny, it’s fine,” Cadance reassuringly murmured, striding up to his side and placing a hand on his shoulder. “Twilight, I’m sure you didn’t mean you wanted to collect the samples yourself.”

Twilight’s wings flitted out to her sides as her cheeks darkened. “What? N…no! Ew!”

“See,” Cadance snickered, “there’s nothing to -”

“I…I mean, I could get some from you, Cadance - like, if - Ahem - you n…needed some help or something, but I w…wouldn’t want to get anything from my BBBFF!” Twilight interjected, anxiously stuttering and playing with her hands. “I’d have to be crazy to even look at Shining - n…not like he l…looks bad or anything - ya know, because he’s so -”

“Twilight,” Cadance interrupted, sideling over and hugging the flustered mare from behind. “Maybe we should drop it for now.”

“R…right,” Twilight grumbled.

It took everything Cadance had not to laugh at the exchange - not just because Twilight was so out of sorts, but because Shining wasn’t any better off than his sister. Blushing heavily and anxiously sweating, he kept his lips sealed while lagging behind. She’d long suspected that the siblings’ affection for one another was slightly atypical and involved something more than the platonic, but she hadn’t, nor did she have any intention of openly questioning the matter.

Descending into the bowels of the castle, one of the few areas Cadance wasn’t familiar with, Twilight opened and sauntered through what appeared to be a heavy blast door. “Sorry in advance, it’s been a while since I’ve been down here.”

Cadance walked in after Shining and drew to a halt as the room went alight. She’d known Twilight was a science buff for years, ever since she’d been the mare’s sitter, but she was unprepared for the sight which awaited her. The spacious area that she’d been brought to was an honest to goodness laboratory bedecked with all sorts of imposing and wholly unfamiliar equipment.

Looking to one side and spotting a number of dressing gowns, Shining gulped. “You…you don’t need us to change ~ do you?”

“What? No, of course not - well, unless you two wanted to change,” Twilight awkwardly laughed. “I am not going to let you two get frisky and life out some weird, kinky roleplay in my lab - nope, no way, no -”

“Twilight…” Cadance muttered as she closed her eyes and pinched the bridge of her snout.

With her mouth open and finger held up, caught mid-sentence, Twilight lowered her hand. “S…sorry about that - anyways, yeah, so help me understand how all this happened. From what Rarity was telling me, Celestia is in a comparable state to yourself.”

“Yeah…” Shining groaned, stepping forward and rubbing the back of his neck. “They kinda went overboard and ambushed me.”

“Ambushed?” Twilight repeated, askance. “What do you mean, ambushed?”

Unwilling or unable to meet her gaze, he fidgeted uncomfortably. “Ok, so…”

Cadance held back as he delicately explained what had happened. It was actually rather impressive that he was able to give as many details as he did without the provocative minutia involved with the impassioned morning in question, but he was somehow able to pull it off - at least for the most part. One small thing he neglected to mention was how she and Celestia had used a bit of magic on him alongside the potion he’d gulped down. Moments from giving the extra detail, she stopped herself and squinted over at him.

It may have been her imagination playing tricks on him, but he looked taller than usual - broader and a bit beefier as well. The polo he was wearing, one of his favorites, tightly hugged his chest, shoulders, and biceps, while the cuffs of his slacks had settled above his ankles. Whether it was a trick of the light, the result of washing his clothes in water that was too hot, that her brain was on the fritz, or some combination of the three was anypony’s guess - nevertheless, it derailed her thoughts and sent them flying in a dramatically more sensual direction.

Her attention, like many times before and many times assuredly to come, eventually settled on his groin. The imprint of his package was subtle, barely noticeable to a passerby, yet it was enough to dampen her panties in an instant. Darned if she knew what plans he had after their visit had concluded, but she was going to peel him out of his attire and remind him why he was the luckiest stallion in all of Equestria the second they got a moment’s privacy.

“Cadance?”

She’d spent more intimate time with him than she dared to consider, and his every erotic detail had been seared into her memory. His masculine scent, the slight upward bend in his rigid stallionhood, how his seed felt when it flowed down her throat or bathed her interior - everything about him was perfect. Without so much as thinking about it, she inched closer to him and reverently caressed his brawny arm.

“Cadance!”

“W…wha…” she coughed as she was torn from her stupor.

Both Shining and Twilight were staring up at her with a mixture of confusion and concern. Darn it - not again. She’d been losing track of herself with increasing frequency over the last few weeks, and she suspected things were only going to get worse as time progressed. She cleared her throat and backed away from her hot, studly hubby as she wrestled her lecherous subconscious into submission.

“Sorry, I was distracted,” she finally admitted, feeling blood rush to her face.

“Distracted - right,” Twilight whispered. Shifting her focus over to her brother, she cocked her head. “Is this a new development?”

Crossing to and leaning against a counter, Shining hung his head. “Honestly, yeah. It’s not uncommon for her to kinda get out of it when I get out of the shower or if I’m changing, but now it’s happening all the time! Just the other day, when I was on duty with the guard, she nearly tore my cuirass off and -”

“Ooooooooookay,” Cadance hastily interjected. “I don’t think she needs to hear about that…”

Having fetched a notebook from beside a microscope, Twilight sagely nodded and jotted something down. “And that’s abnormal behavior?”

“I’m pretty sure it is - honestly, you’ll have to ask her,” he grumbled. “It’s hard for me to tell if she’s sneaking around and spying on me because she’s good at it.”

Scrunching her snout, Twilight shot Cadance a look of disbelief. “Seriously, you’ve been peeping on your husband?”

“It’s not that big of a deal,” he chuckled. “Don’t be mad at her because she’s better at it than you are - besides, I -”

“Shining!” Twilight barked, her face having gone beet red.

“What?” he shot back. “I didn’t care then and I don’t care now!”

“W…well you didn’t catch me watching you change from outside your bedroom window!” Twilight countered.

Cadance’s eyes shot wide and her jaw nearly hit the floor. “Says the mare I caught doing the exact same thing a few nights when I was coming over to pick him up!”

Reeling back as if stricken, Twilight clutched a hand to her chest. “I…I don’t have the slightest idea what you’re t…talking about - anyways, I need to get changed before we move onto finding answers and forgetting this discussion ever happened. I’ll be right back,” she hastily remarked as she briskly trotted away and saw herself out.

Looking over to the door she’s exited through, Shining knit his brow. “Was that true?”

“I am not getting into it,” Cadance huffed, folding her arms beneath her heavy bosoms. “If you want to ask her about her peeping habits, that’s all you, mister my wife’s a voyeur.”

Appearing simultaneously amused and flattered, he strolled behind her and rubbed her shoulders. “Honestly, I’m not any better than you are.”

She glanced back at him and turned slightly. “Really?”

“Mm-hmm,” he softly confirmed as he nodded. “There’s just something sexy about watching you when you don’t know I’m there.”

Steadily swinging one arm back, she ran her hand over his hip. There may have been stallions in the world bigger than him, buffer than him, and younger than him, but Shining was perfect in her eyes. In spite of having been married to him for ages, more than half of her life at this point, and having known him for even longer than that, she never tired of him - if anything, his looks and suave personality had gotten better with age. Coming just shy of caressing his groin, realizing what she was doing, she stepped away and staved off the temptation of doing anything frisky.

“Looks like Twi hasn’t used this place in a while,” she noted, halfheartedly inspecting a shelf of what appeared to be dressing gowns.

Meandering over to a neatly organized rack of contraptions, Shining picked up a piece of equipment and quickly dropped it. “What the heck was she even doing down here?”

Cadance twisted around and spotted what had prompted his question. There were all sorts of machines and devices throughout the chamber, many of which were unfamiliar to her, although the one that Shining had been inspecting was unmistakable. With a quartet of hoses leading from a central body to four small suction cups, there was only one thing the apparatus could be - a milking machine.

While they had their own milking machine squirreled away in their castle, the model that Twilight had was far larger and seemed to be designed for livestock. How would her output compare to a cow’s? Would Twilight notice if it went missing? Could it actually be used on a pony? Beset by questions, each of which being more depraved than the next, she shivered when she felt a cool moistness against her breasts.

Glancing down at her rack, she grimaced. Even though she was wearing a bra and nursing pads, the wet fabric over her bosoms spoke to how prolific her breasts could be. Celestia may have her beaten in regards to the sheer size of her bust, but she was just as productive as the older, slightly larger alicorn.

“Uh - honey?” Shining mumbled.

She rubbed her temples and closed her eyes. “Yes, I know…”

Fantastic - now she was going to have to deal with whatever Twilight was going to subject her to while she was leaking milk like a broken faucet. Turning and scanning the room, hoping to find some tissues to stuff in her brassiere, her eyes shot back over the gowns she’d found moments prior. Like a bolt from the heavens, an idea struck her as she fixated on the simple garments.

Twilight had mentioned something about samples, and it wasn’t like her sister-in-law hadn’t seen her naked before, so perhaps a change of attire was due. Without saying a word, she reached behind herself, grunted, and pinched the zipper of her dress. She wasn’t sure if she was a genius or just a horny idiot - in either case, she was about to make lemonade from lemons.

“I - ummm…” Shining hummed behind her. “What are you doing?”

Without looking back, once she was finished opening the back of her gown, she lightly pulled the fabric down her shoulders. “Changing…”

She wasn’t about to lie to him, but dancing around certain details would be in her best interest. Shining was a shrewd and resourceful stallion, but he could be a bit gullible at times - something she’d occasionally use against him. It was obvious that she was changing, slowly and sensually removing one piece of clothing after the next, although she wasn’t about to admit why she was stripping.

Practically naked, save for her heels, she leaned against a nearby countertop, pulled at her shoe, and spied movement to her left. She hadn’t seen it earlier, but she’d wound up standing next to a large, wheeled mirror oriented above the stainless steel surface she was using for support. Her reflection only locked eyes with her for a second, before her attention was drawn from her face to her gratuitous curves.

She wouldn’t consider herself an arrogant mare by any means, but she was proud of how she looked. The engorged bosoms resting over her gravid belly, her ample, foal-bearing hips, the absolute dump truck of her tush - yeah, Celestia may have been slightly more curvaceous than herself, yet she looked just as stunning in her own right. Turning around and keeping her eyes on the mirror, she playfully wiggled her tush and smirked.

As she sent power into her horn and levitated one of the uniforms from the nearby rack, her marehood quivered with anticipation. Was it unwise to try and seduce Shining before Twilight returned? Yes. Had her wanton desires overpowered her sense of reason? Again, yes. Straightening up and extending her arms over her head, she hovered the gown onto herself.

The simple article, little more than a long, open-fronted shirt, clearly hadn’t been made for a mare of her size in mind, though that could work to her benefit. With the fabric falling open, exposing her chest, stomach, and bare loins, she lazily wheeled around and strutted over to her hubby. While she may only have enough time to get him riled up, she was going to make sure he’d be eager to get home and give her some personal time.

“Oh doctor,” she dramatically lamented as she pressed the back of one hand to her forehead, “you simply must help me.”

“I…wha…” he sputtered, peering up at her.

Grabbing his wrists, she lifted his arms and crammed his hands under her tits. “They’re just so big and heavy,” she moaned, closing the gap between them and sandwiching him against the exam table. “Isn’t there anything you can do?”

With a wry grin on his face, he slid his palms upward, over her bosoms, and ran his fingers over her rock-hard, practically gushing nipples. She didn’t have to look to tell he was thrilled by the spontaneous and passionate development, and she’d be willing to wager his slacks were struggling to contain his growing erection. There were any number of things she could have said or done to get him more excited than he already was, but there was one particular way that never failed to get his motor running.

Resting her hands on his shoulders, she backed away while bending forward at the waist. “Moo…”

As he stiffened in more ways than one, a smirk split her muzzle. She almost felt bad for tactically hammering at one of his top fetishes - almost, but that didn’t stop her from hitting his buttons. Though their love for one another was limitless, they could and regularly would attempt to mischievously provoke one another in lascivious ways. Sidling over just a bit, she bent forward, placed her hands on the table, and rolled her shoulders from side to side.

Hanging heavily from her chest, her gargantuan breasts wobbled and sprayed milk to the floor. She couldn’t explain it, and it certainly didn’t bother her, but Shining had a profound weakness for cow-themed lewdness. There were a number of costumes she’d gotten over the years, including a very scandalous cow-print sling bikini she liked trotting around with while wearing a bell around her neck and a pair of novelty horns on her head, and she had no shame in parading herself around their bedroom adorned in them for special occasions or when the mood struck.

Simply put, toying with one another was fun in the best of ways. Sometimes she’d be the one taking the offensive, like how she’d just thrown him for a loop - other times, he’d be the one to seize the initiative. On more than one occasion, he’d sneak a collar and leash on her while acting deliciously villainous - even going so far as to don Sombra’s old cape and crown. Watching him walk down her body and glide a hand down her back, she suppressed a moan when he smacked her generous backside.

“Don’t worry, I think I have just the thing to help you out,” he breathed.

As he kneaded her ass and gave it a second, significantly harder slap, setting a shockwave through her doughy cheek, his horn started to glow. Twilight could reappear at any second and walk in on a scene that was anything but fitting for the circumstances, but the threat of getting caught didn’t deter them - in fact, it added a deliciously naughty element to the mix. Eyeing the door and holding her breath as his fingers crept into the cleft of her tush, she gasped when two cold, unyielding metal flanges were pressed to her nipples.

While the contraption was obviously an industrial model, it was only barely able to fit her mammoth teats. The vivid, tender flesh of her areola was only covered slightly by the suctioning cups affixed to her breasts, allowing trails of milk to stream down her bosoms and to the floor below her. If or when she was able to procure one of the devices for herself, she’d have to order larger flanges or possibly get a pair made specifically for her.

She’d been right about one thing - the milking machine was far, far more forceful than the one she had at home. Clamping her eyes shut, she hissed and arched her back. This wasn’t how a mare, much less a Princess like herself, should be treated, yet the intense sensation of having the milk fiercely drawn from her tits felt incredible.

Gently patting her thigh and prompting her to spread her legs, Shining ran a thumb over her clit while kneeling down behind her. “Shhhhh,” he quietly hissed. “It’s okay, Bessy - ol’ Shining’s gonna make sure you’re nice and satisfied.”

She’d be lying if she said she didn’t enjoy pretending to be a cow, but this was the first time she’d genuinely felt like one. The contraption violently gulping down cup after cup of milk from her udder-like breasts, the cool air against her skin, the weight of her bosoms and the foal in her belly - with her eyes shut, she could practically imagine herself as some gravid bovine in some quaint little veterinarian’s office. Whimpering as Shining sank three fingers into her depths, she bucked back against his hand.

“Go on,” he faintly urged, “gimme another little moo. I know you -”

“Mooooo,” she loudly mewled, shedding her regal veneer as though it had never existed.

Continuing to finger her and expertly massage her g-spot, he kissed her upper thigh. “Atta gal…”

This was so wrong, so indecent, yet it was positively electrifying. There she was, one of the four Princesses of all Equestria while being treated like a farm animal, and she loved it - to make matters worse or better, Shining was well-aware of how aroused she was. He knew her inside and out, both in a literal and metaphorical sense, so she never stood a chance against him.

Taking his time with her, alternating between fixating on her clit and her g-spot, he pushed her to the brink of release before snatching a climax away. She adored him with every fiber of her being, but she’d be the first to admit that his particular brand of affection was a double-edged sword. While he could deliver her to the gates of ecstasy with virtually no effort, he’d typically tease her until she was begging for release.

Her fears were brought to fruition when he withdrew his hand and stood up. “C’mon, gal, ya can’t just think about yourself ~ can ya?”

Peeing over her shoulder at him, she fell motionless when she saw what he was talking about. At some point or another when he’d been getting her off, he’d opened his pants and hauled his stallionhood free. Whipping around so fast that she nearly lost her footing and fell, she drove her snout to his groin and deeply inhaled.

If she could have found a way to bottle his musk and sell it, she had no doubt that mares everywhere would be buying it to smell on long, lonely nights - fortunately for her and unfortunately for everypony else, he was a delight that only she and Celestia got to savor. Pulling back and dragging her tongue from the base of his shaft to its blunt crown, she angled his stallionhood toward her muzzle.

For the second time since they’d arrived at the Castle of Friendship, she found herself a bit perplexed. Shining’s stallionhood had always been impressive in both length and girth, yet now it appeared even more imposing. While she could attribute a bit of her confusion to him being particularly aroused, or perhaps that she was more than a little worked up herself, she couldn’t shake the thought that his tool was slightly bigger than it was supposed to be.

Adjusting her positioning ever so slightly, she sandwiched Shining’s shaft between her tits while putting her body to work. Being tall and with an exceptionally large rack came with a few drawbacks, such as fitting through small door frames or into passenger train cars, but the benefits far outweighed the costs. She bobbed her head while rocking forward and back, simultaneously using her snout and breasts to get him off.

His eyes fluttered and he released a contented sigh that fueled the fires of her determination and lust. Pleasuring him was its own reward, as or at times even more gratifying than the physical bliss of being plowed by him, and it spurred him on like few things could. Groaning around him and lavishing his sensitive cock-head with her tongue, she gradually increased her pace.

While she wouldn’t have minded getting a hot, rich load of his cream as a mid-morning snack, her desires grew more ravenous as the seconds dragged on. Contending with the idea of getting screwed in Twilight’s lab, tempting fate and what would assuredly be an awkward moment if they were caught, was titillating to a fault, but the milking machine - sweet, merciful Celestia, the milking machine was driving her insane.

Regardless of whether the contraption would be able to drain her fat, milky tits dry before they were finished fooling around, the rhythmic, almost violent suction on her nipples was amazing. Fighting the urge to lower a hand to rub her aching marehood, she held out for as long as she could. If she was going to cum, a prospect that grew increasingly appealing by the second, there was only one way she was going to do it.

While she rubbed her breasts to increase the flow of milk, it grew harder and harder to concentrate. This wasn’t supposed to be happening, she hadn’t come to Twilight’s castle to have a risky tryst with her husband, yet she’d succumbed to her sinful yearnings. Willing herself not to stop, if only to test her mettle, she peeked up when he ran his fingers through her mane.

“I love you…” he whispered.

He’d told her that more times than she could count, yet the confession shattered her composure with ruinous force. Practically bolting to her feet and detaching from his stallionhood with a soft pop, she eased herself onto the table behind her, rolled back, and lewdly splayed her legs. Subtlety be darned - it was neither the time nor the place to get her brains screwed out, but he could not tell her he loved her while she was blowing him without expecting to deep-dick her into a coma.

He faltered as his eyes shot to her sopping wet, winking marehood. “Right n…now?”

Calling upon her arcane fury, she levitated him from the floor and hurled him at herself. Teetering on the brink of a rut-lust or not, she was not to be trifled with. In the blink of an eye, he flew at her, sheathed his stallionhood in her balmy depths, and fell over her titanic belly. Though she wasn’t even close to being fully to term, her stomach was so large that he struggled to fully hug it with both arms. Buck it - should Twilight end up busting them, she could always blame her wanton actions on her pregnancy.

She sweetly smiled as she lifted his face and gazed into his wide, shocked eyes. “Start moving or I’ll start moving you…”

Nervously or excitedly nodding - honestly, it could have been either or both, he gave her what she wanted. Like a spring-loaded trap, just as the tip of his shaft kissed her womb, her legs snapped shut around the small of his back. He was stuck, like it or not, and there was only one way he was going to get free.

“As - huff - tight as ever,” he snorted.

She’d been thinking the same thing herself, albeit in a different light. Though she wasn’t making any active effort to constrict his length, her marehood was clamped around him. It wasn’t possible that his endowment had gotten even larger than usual ~ was it? Making a mental note to break out the measuring tape after she got home, she experimentally contracted her pelvic muscles.

Peppering her gigantic stomach with kisses, he braced his legs and started thrusting. The logical part of her brain told her that nothing had changed about him or his sensual skills, that his bucking hips and thick, wondrous stallionhood was the same as it had ever been, yet it sent bolts of rapture surging through her frame as though it was the first time he’d claimed her. Constricting her legs in tune with his plunges, she lent him a sliver of her strength while he picked up speed.

“Just gotta,” he grumbled, reaching for the metal cylinders affixed to her right breast.

Looking down at him, she quirked a brow. “What are you - Aaaaaghn!”

Her sinful wail rang in her ears as he threw the still-sucking component away and latched onto her freed tit. The contrast of cold metal against his warm, pouting lips was like night and day. With her pleasure mounting and sending her spiraling to a climax, she clutched the back of his head and pulled his face into her bosom.

She was definitely going to have to figure out where Twilight got the heavy-duty milking machine - plus it couldn’t hurt to pop by the Carousel Boutique to see if Rarity had any cow-print material on hand. A tremor crept into her thighs, her heart was going a mile a minute, and the breath hitched in her throat as she teetered on the brink. She was close - very, very close to cumming; all she needed was a little push.

“If - Nnnph,” Shining grunted, screwing his eyes shut in concentration. “If you give me another moo, I’ll -”

“Moooo!” she howled, knowing good and gosh darn well that he was going to say something about giving her a cream pie. “Mooo - you magnificent stud!”

Her outburst did the trick, setting him into a frenzy, but it worked a bit too well. The force of his plunges increased, he growled around her nipple, and a faint light radiated from his horn. She was sure he was up to something, calling upon his magic for some inexplicable reason, although she was unprepared when she felt the unmistakable tingle of sorcery on her clit.

She came in an instant, braying out in ecstasy while a torrent of marish juices flowed from her stuffed, battered marehood. The climax was a particularly intense one, in part due to the multi-pronged assault she was weathering, and it was punctuated by aftershocks of bliss. There were times when she’d mused on what it was like to be a stallion, but moments like these, having one orgasm rebound and lead into another within seconds, made her immeasurably thankful that she was a mare.

Shining gave her no quarter, angling each thrust to hit every sweet spot in her depths while he used his muzzle, magic, and hands to deliver unimaginable pleasure to her. In the face of such rapture, irrespective of her stature and incalculable arcane might, she was completely and totally helpless - not that either of them minded in the slightest. Keeping her eyes on his face, she coaxed him off her breast and lifted his chin.

Craning his neck and pursing his lips as she leaned in, they kissed deeply and passionately. Their tongues entwined, their breath mingled, and they moaned into one another’s snouts. There were a great many things she was grateful for, from being an alicorn to having two wonderful children, yet every good thing in her life was due to or made all the sweeter by her beloved husband.

By the time she felt him starting to flare, she’d endured another three climaxes. She hadn’t the faintest idea of how long he managed to last, yet the sensation of his stallionhood pulsing and swelling drove her into a frenzy. All but driving her tongue down his throat, and keeping a vice-grip on him with her legs, she held him to herself when he reached his limit.

The nearly scalding heat of his seed flooding into her was phenomenal. Envisioning him knocking her up again, fantasizing about his rich-foal batter claiming her womb to sire an heir, or even better another, she was granted a final climax along with him. As he pulled back, met her eyes, and grinned the same silly grin he’d given her on prom night so many moons ago, she exhaustedly smirked.

Even without the enhancements of potions or enchantments, his output was awe-inspiringly prolific. Each throb of his stallionhood sent a small tsunami of his essence into her, coating every nook and cranny of her depths, and it went on seemingly without end. Though she already appeared heavily pregnant, her belly distended and swelled from the absurd influx of spunk combined with her growing, unborn foal. Maybe if she was lucky and Twilight gave her good news, foals.

She’d never considered herself overly perverse, but she loved how productive he was. No matter if she was gulping it down, getting her face covered in it, or having it flooding into her in one way or another, his cream was a gift to be cherished. Stroking her belly and feeling it swell over her sides and pushing him away from her muzzle, she opened her eyes and peered down at him.

“You - heh,” he half-chuckled, half-wheezed. “You think Twilight would notice if we borrowed -”

“Nnnf…”

Both Cadance and Shining’s heads turned to the side, drawn by the soft sound, and they froze. Lingering just within the room, lightly tweaking a nipple with one hand while the other had disappeared down the front of her skirt, Twilight fell motionless. Everypony held their breath, nopony moved, and the only noise in the lab came from the continual hum of the machine milking Cadance’s one tit and the stream of her unattended one dripping down her body and running off the exam table and pooling underneath them.

“So - uh,” Cadance began, magically turning off contraption. “Did you get this from Barnyard Bargains or…?”

“H…haymakers,” Twilight croaked as she fought with the front of her undersized lab coat. “Come on - stupid…Ugh…”

Quickly waving Shining away, Cadance forced a smile. “To be fair, it’s not like you didn’t just get an eyeful for yourself…”

Twilight pouted and ultimately held the front of her coat closed over her bust. “Yeah, but - darn it!”

The fabric slipped, the coat fell open, and Twilight’s tits lay fully exposed. Cadance wasn’t bothered by the sight in the slightest, having seen plenty of racks in her day, although the effect on Shining was profound to say the least. His blush would have been telling in and of itself, but the sensation of his stallionhood suddenly throbbing inside her was highly incriminating of his thoughts for his not-so-little little sister.

There was no way in Tartarus Cadance wasn’t going to do a bit of digging after this, carefully but tactically speaking to Shining and Twilight about their feelings about one another, but that would have to wait - for the time being, she had to tactfully deal with a literally and figuratively sticky situation. Seeing Twilight look down to the overflowing container of milk attached to the machine, she set her jaw and concentrated. With sparks and flickers of light sputtering from her horn, the vessel shakily drifted into the air.

“I’m guessing this is one of the samples you were wanting?” she inquired.

Twilight caught the ewer in both hands, nodded, and licked her lips. “Uh…uh-huh…”

Biting back a giggle, Cadance shook her head. “You can try it and I’ve got plenty more yet. Considering your brother and nieces have - oh…”

Twilight lifted the container before she could finish speaking and took a long, deep draught - several in fact. With milk dripping down her chin and onto her cleavage, she bashfully wiped her face. It wasn’t until she shifted her focus over to Shining that she flinched. He bit his lower lip, spontaneously bucked his hips, and the way he gave a low, sonorous hum that, in combination, brought her back to her flustered and clearly aroused state.

“W…w…well, I’ve gotta - um - go do science stuff,” she incoherently babbled, backing away and hitching a thumb to the nearest exit. “I’ll - uh - I’ll be back in maybe ten - no, fifteen minutes.”

With her floundering excuse given, she turned tail and ran - ran away and out of sight. Cadance would freely admit that she didn’t know everything, but she’d like to think she knew Twilight well enough to know when a mare was about to furiously rub one out. As she pondered on if the young mare had a toy in the likeness of her brother’s endowment, Shining thrust into her and tore her from her thoughts.

“One more?” he purred, waggling his eyebrows.

Snaking her legs up and hooking them over his shoulders, she clenched around his turgid shaft. To heck with it - they’d already gone this far and been caught in the act, so going a second round wasn’t going to hurt a darn thing. While he bent over and picked up where he’d left off, her hands glided up his arms. The last few weeks had been incredibly interesting, but her gut told her that things were only going to get crazier from here on out…