In the years since the sisters had retired Twilight had managed to run Equestria itself pretty handedly. While the first year had been rough, the following decade had been smooth. But when things weren’t running smoothly her friends and the sisters were only a letter away.
Today was one of those smooth days. The roughest part during court had been mildly annoying with having to give a lot of noncommittal answers to questions on rumors about the goings ons in her Sister-in-Law’s Empire. Thankfully tonight she should be getting answers as the sisters were returning from the Crystal Empire with Cadance in tow. Given Cadance was coming along things must not be that serious up north.
Of course Cadance could rely on Shining to handle things in her absence. Outside of the stressful first couple of years with Flurry Heart Shining had done well when the various crises that had befallen the Empire and Equestria itself.
With court dismissed for the day Twilight had retired to her room, changing from her chaste formal regalia into something more comfortable and flattering. One thing she had long ago learned was that the newspapers would take any chance to take photos of her and question minor things like hickies, stretch marks, or even a single pound of weight gained.
Thankfully Celestia had given her a decent bit of advice on how to hide such things, and with Rarity always on call for any of her needs she had gotten a fittingly regal wardrobe for public and private occasions. Of course half of her private occasions had been with her friends, and the other half were clothing optional events with her friends.
Regardless of those now fresh in her mind memories of friends in various states of disrobe she slipped into a comfortable set of evening wear. Loose and silky without showing off much more than her collar bone. She didn’t feel this was an occasion for flirting so showing off her cleavage wasn’t a priority.
No, flirting with her former mentor and Luna could wait until later in the week. Plus she didn’t want to distract from the point of the meeting, figuring out what was going on in the Empire. Even her own ears had been hearing some odd rumors about rather public perverse events going on. Though the few bits of information she got from acquaintances and her own officials seemed to downplay it. Well minus the one scholar there who mentioned something about odd magic recently showing up and was theorizing about how it could possibly be reflected and broadcast through the Crystal Heart, which was the main concern of Twilight’s.
Unlike some of the nobility of Canterlot she was a lot more open minded to the whole lewdness thing. Though following the core tenants of consent, which was her worry given the magic might make consent on the more dubious side. It reminded her of the headache when the first Changeling brothel opened. Thankfully that had mostly gone smoothly after the first six months.
So whatever was going on likely was benign and blown out of proportions by the rancorous gossip circles that the more puritanical snobs in Canterlot were liable to do.
Her thoughts were brought back to the now as she took in the scent of fresh coffee. She had just missed Pony Joe, who was always happy to cater her private meetings with Celestia. As such the stallion knew exactly what she enjoyed in terms of casual meeting refreshments, and he had long known Celestia so he knew what she liked as well.
Slipping into her informal throne in the room she let herself relax, slouching her shoulders and closing her eyes for a minute as she decompressed. After feeling the stress in her shoulders lessen she floated over some fresh coffee and doughnuts. As always the coffee was excellent, and she enjoyed the eclairs.
At the moment Twilight had bitten into a fresh eclair the door opened showing her fellow princesses. Their smiles were friendly and welcoming, though a bit mischievous as she was in the process of devouring a cream filled pastry.
“I see you wasted no time in relaxing, glad you have learned well, my student.” Celestia giggled as she floated her own personal selection of refreshments and pastries.
“She takes after you quite well given how she has filled out her role on the throne.” Luna teased.
That made Twilight blush, her alicorn growth spurt had continued for a decade after getting her wings leaving her the same size as Celestia, and the stress of the job left her with a, as he friends put it, matriarchal figure. Which was flattering that they said so but she still had some issues with her body image still. Regardless she knew Luna was just teasing her.
“She has grown to fulfill her role as Queen of Equestria.” Cadance giggled with her aunts. “As it is, it is nice to see you again, Twi.”
A swallow and lip lick later Twilight replied. “It is good to see all of you again, and please refrain from the teasing. I don’t need to start second guessing myself again and researching biomancy again.”
Celestia gave a curious look while Cadance just giggled more knowing Twilight’s past of looking into biomancy. It had been an interesting year, of course puberty does that to anyone.
“Regardless, it is good to see you again, Twilight, I gather you would like to get down to business.” Luna asked.
“Yes, it would be nice to know what’s going on in the Empire. My acquaintances up north have been giving me a rather incomplete picture.” Twilight admitted.
Cadance snickered as she sat down. “So my Sister-in-Law has spies in my empire, I didn’t think you enjoyed that sort of skullduggery.”
“Do you forget us doing the groundwork to get you and my brother together?” Twilight fired back.
“That’s different, but yes, I guess you always had a devious streak.” Cadance purred. “A family trait that I do adore.”
Twilight knew that tone, a flirty tone, it took her back to a bit after Cadance and Shining’s wedding. A rather passionate thank you gift from Cadance.
Celestia coughed to bring Twilight’s attention back to the now. “As it stands, there has been a release of lewd magic in the Empire, nothing overwhelming but it has had an effect upon the Empire itself. Namely, folks are more open to fornication.”
Twilight let that information sink in for a moment before bidding her guests to continue.
“And it has had an interesting set of new spells come into existence.” Luna continued for her sister. “Due to the more open mindset to copulation has caused an increased interest in indulging less normally physically possible fetishes. Generally oversized parts. The upside of these injuries have decreased due to the rapid propagation of elastic enchantments.”
Twilight perked her eyebrow at that and motioned with her hand to elaborate.
Cadance pointed to an earring she had in. “With these it is harder to have the usual issue for sexually inexperienced individuals or those who are taking things bigger than our medical textbooks say they should start with or ever take. Namely ripping, so there is a great deal less pain and bleeding involved. As well as a few other enchantments.”
Swallowing her coffee, Twi asked a question that had come to the forefront of her mind. “So people are… increasing their endowments and subsequently also making themselves more able to take such enlarged endowments. I can only see this leading to a sharp increase in pregnancies.”
Celestia nodded at that. “That was my initial worry, having run the nation for a thousand years I had concerns about a population explosion. Which is why Cadance mandated a contraception enchantment be researched and added to these toys.”
“Okay good, I didn’t want to suddenly need to double our food production. Though I worry about that meaning no pregnancies.” Twi replied.
“Oh no, plenty are still getting pregnant, it is mostly a thing of reduced chance. Which made it a bit trickier to pull off.” Cadance explained. “So our population growth should increase a bit more steadily, but I don’t think anyone minds.”
“Outside of that, are there any other issues that have come up?” Twi asked.
“Well, herds are popular again, more freedom to love and magical encouragement to do so means we had to dig up the laws on governing herds and how to handle estates due to it.” Luna explained. “And there are uh some more stranger fetishes that were previously taboo or impossible being indulged. Things I had assumed were only possible in dreams.”
“Like what?” Twi asked.
Cadance spoke up. “Merging, you know, taking the whole ‘two hearts becoming one’ a little too literally. As well as various forms of consuming one another.”
“Cannibalism?!” Twilight stammered, her coffee falling out of her magical grasp, only for Celestia to catch it for her.
“Not quite my dear Twilight.” Celestia began. “The person consumed doesn’t die, they become one with the individual who has consumed them, and can be recovered if desired. Both parties retain full awareness.”
Twi just sat there in stunned confusion.
“Perhaps an example is required, as much as your former pupil learned well from books, practical displays can be rather informative.” Luna said to Celestia.
Twilight was still confused as to what they meant as the three other princesses disrobed. As always her eyes drank in the beauties of her peers, the softness of Celestia, the motherly body of Cadance, the rather large cock of her brother.
“Wait what?” Twilight asked aloud, staring at her sister-in-law’s crotch. “Uh, why is my brother’s cock…”
Cadance giggled. “Well, you see, we were serious about two hearts becoming one, and so we became one. He’s my cock and balls now.” She pointed to what initially Twilight thought was just a birthmark on Cadance’s pelvis, but was Shining’s Cutiemark.
“I… okay, can you walk me through the process of that?” Twilight asked, blushing as her body was struggling to fuel her loins and brain that were both demanding as much blood as they could get to focus on what was going on in their respective ways.
“Well you see, when people love one another they want to be as close as possible.” Celestia purred having strutted over to Twilight’s left, her breasts now straddling Twilight’s left arm. “And as such they press together.”
Twilight’s brain was struggling to stay coherent as her body pushed more blood to her erogenous zones in anticipation of funtimes.
“Idon’tgethowthisexplainswhymybrotherismysister’scock.” Twilight stammered.
Luna’s soft breasts pushed into Twilight’s right arm as she kissed the dazed monarch’s horn, getting her to spark with excitement. “Well, they became one. It was a rather arousing spectacle.”
“It was, though you were more busy with that cute pegasus stallion, Flash something.” Celestia teased.
Luna’s face was red with blush but her right hand was more focused on pleasuring Twilight as it fondled her right breast. “Yeah and you ate that mare. Just because she had a cake for her cutiemark doesn’t mean she’d taste like one.”
Celetia’s hand had moved down to Twilight’s slit and was gently fingering the still very confused alicorn. “She in fact tasted like frosting. Namely because she fed me cake as well as herself.”
“Princesses?” Twilight meekly squeaked. “Can you stop so I can think?”
The two sisters continued to bicker while applying fingers and soon magic to Twilight’s body to quickly get her dripping with arousal.
“Aunties, you’re supposed to be helping her relax, not bicker.” Cadance commanded.
The two sisters blushed and instead picked up Twilight and laid her down onto the crystal table. Celestia moved to straddle Twilight’s groin while Luna busied herself with half removing Twilight’s clothing so her soft furred breasts were open to the air. A part of Twilight cursed wearing chaste clothing to this, that she should have worn one of the looser outfits she had. At least then it wouldn’t have been hard for the sisters to undress her.
Another part of Twilight was confused at how turned on she was as her hands absentmindedly felt up her former mentor for the first time in a year. Those large soft breasts, the ample hips, that slight pudge. Her fingers gently tracing Celestia’s erect nipples while Celestia gently grinded her slit on Twilight’s naked pelvis as the Solar Sister’s magic lapped away at Twilight’s slit.
“Fuck, I need this.” Twilight admitted before using her magic to slap Celestia’s ass.
“Then just relax, Twilight, let me give you a taste of what we learned.” Celestia purred before leaning down and pressing her body hard against Twilight’s.
As Celestia made out with Twilight, Luna and Cadance were enjoying the show, having a gentle and slow fuck on the otherside of the table. The room quickly was heavy with the scent of arousal and sex. And to those who weren’t drunk with lust they would have noticed the descent of magic upon the room, a lewd magic that had been brought with the three alicorns from the Empire.
Celestia’s tongue wrestled and played with Twilight’s as the two’s minds became fuzzy with heady lust. Their horns pressed together and they began to feel one another’s sensations, making the haze of lust cloak their minds more deeply. Part of Twilight understood now the dangers of this lewd magic, arousal would quickly lead to copulation. But that was barely a danger, maybe a few new introduced ordinances and some new imports from the Empire and that would settle things.
After all, this felt amazing and there was no crime in loving those wanting to be loved.
Celestia stopped kissing her to pull away and draw Twilight’s gaze south, south to where their stomachs met. In her lust clouded mind she failed to parse what Celestia was trying to point out to her, until Celestia groped her own breasts, and Twilight felt it.
“That feels nice.” Twilight cooed. “But how, our horn’s aren’t touching, and I don’t see your horn glowing.”
Celestia used a finger to glide around where their stomachs met and Twilight felt what she was trying to tell her, their stomachs were one. Looking behind the magnificent ass of Celestia Twilight saw her former teacher’s legs were missing, having melded into her own, with a new white coat having taken up the inside of her legs.
“I… how?” Twi asked.
“We haven’t quite figured out the details, but it allows desires to be fulfilled.” Celestia cooed. “And, excuse my vulgarness, but I desire to be part of you. And my mind goes to granting you with something that lets you pleasure others in a new way. To give you a new way to destress, given how many mares in your life, and your collection of dildos, I’d imagine becoming your royal rod would be… Helpful.”
Celestia was blushing as she looked up into Twilight’s eyes, already resting on Twilight’s stomach like a massive member, all that was needed was a bit of reshaping. The thought of which left Twilight filing away research into how all this worked for later. Why? Because documenting how this felt and happened would be helpful, and she couldn’t think of a better way to figure out how it happened than to be a test subject.
Twilight nodded in agreement as she used her fingers to explore what was out of view, her clit and Celetia’s had fused, making both of them moan in pleasure. The waves of lust and pleasure of doing so drew the two to resume making out while flicking their conjoined bean. The sensation of pleasure was double giving feeling one another’s sensations. Celestia deviously switched to using her magic, filling both of their drooling snatches with magical cocks.
Once more the throes of pleasure and lust took the two princesses. Their words stopped needing lips to be said as they could think-talk to one another. Though it was mostly moaning one another’s names and telling one another where they wanted to be touched. They could feel the wants of one another, which led to a lot of touching and caressing.
“Those two are rather enjoying it, and I guess you win our bet, Luna.” Cadance giggled as she rubbed Luna’s cum swollen stomach. “I hope you enjoy your reward.”
“I do, though I can’t wait for what comes next.” Luna purred in return, leaning back on Cadance’s lap watching her sister merge with Twilight. “I do enjoy the lovely two tone coat Celestia is giving Twilight.”
“As do I, makes me wish I had done the same with Shining.” She giggled. “Yes I know hun, you make a lovely cock, and you do have lovely ideas.”
“It’s going to take getting used to talking to Twilight and others as you and your husband do.” Luna giggled as she rubbed her stomach.
“It only takes a few days to get used to.” Cadance replied. “His words, not mine.”
Their attention returned to the two lovers half fused, Celestia’s breasts had fused with Twilight’s and the excess mass was making Twi both plump and amazonian in stance. Given Celestia and Twilight were the biggest ponies out there together they were absolutely massive. Twilight had moved to sitting upright on the table, as the two held one another in their arms, Twilight groaning as she tried to bounce Celestia on her lap.
Strangely to her she felt as if she was fucking Celestia despite the lack of bits to do so. But as the solar matriach became one with her Twilight realize that her teacher’s sex had become a new one for herself. Twilight groaned as she came with her new sex, Celestia was moaning in return as she drooled before kissing Twilight hard.
The flavor was something familiar, it reminded Twilight of giving a blowjob, the taste of cock and pre was heavy in Celestia’s mouth. Or as she realized in a moment, Celestia’s drool was pre, and the taste and scent of cock wasn’t from a great deal of cock worshiping in the Empire. Twilight and Celestia were left in orgasmic bliss as their vision was filled with spots as the two gasped and panted in post climax bliss.
A few minutes later the two were coherent but the process wasn’t finished.
“My dearest Twilight, we’re not done, please let us continue and become one. Then we’ll never be far apart and I can help you rule our nation together.” Celestia cooed as she did her level best to grind what was left of herself against Twilight.
The sensation of Celestia’s work felt heavenly to her, as if all of Celestia throbbed with arousal, and every touch by Twilight elicited a twinned moan from the two merging alicorns.
This was when Twilight realized her need for Celestia to become one with her. And Celestia realized that she was to be little more than her former student’s horsecock. To Celestia the degradation of her status from former ruler of Equestria to nothing more than her student’s cock made her tremble in delight. It was so scandalous, such wonderful new experience, but also an eternal promise to be with Twilight.
Twilight could hardly disagree, already needing to utilize Celestia’s altered form again. “Of course, I want you with me, to be beside me forever.” She groaned as she felt dizzy.
Celestia intertwined her fingers with Twilight’s kissing her once more before replying. “So do I.”
Again they began mating, but it was apparent that Celestia was becoming less and less of former regal self. Her body fusing with Twilight’s leaving her stomach, chest, inner arms and thighs painted white with Celestia’s coat. Twi blinded by pleasure missed a good part of the fusing, but in the last minute of the process she was clear minded enough to look at her new figure. Celestia’s diminishing torso was bereft of tits, and instead Twilight’s chest had doubled in size as Twilight squeezed her own left tit with one hand, she noted she’d need to call Rarity over to refit her wardrobe.
Her attention went back to Celestia who was little more than a shadow of her former glory, her arms had fused with her torso creating a medial ring, her neck having vanished as her head was merging with her shoulders to create a fat cockhead. All the while Celestia’s golden magic grasped herself, jerking Twilight off with as she became little more than her successor’s cock.
Celestia's face becoming the head of Twilight’s new member, her moaning mouth being stuck open as her duty as the royal cock was nearly finalized. Her horn slowly softened and became little more than a small nub at the opening of Twi’s cockhole. The last sign of her former teacher was a wink before her facial features ceased to be. What once had been the monarch of Equestria for one thousand years was gone, and only a marebreaker of a cock belonging to Equestria’s new leader remained.
With one last moan Twilight came, hearing Celestia’s pleasured moans in her mind as she painted her new wonderful body with clear cum. Part of her felt empty with the lack of a proper sack. Regardless of that she felt wonderful, and needy, Celestia in her mind urging her to get off again and the two powered through jerking herself off with her hands, magic of both, and breasts into her mouth.
Finished with her third orgasm in twenty minutes Twilight lay plastered and calmed down atop the crystal table staring at a well fucked Luna and very pleased Cadance.
“Well, now you see how it works and why folks are enjoying this up north.” Cadance purred.
Luna blushed as Cadance lifted the lunar mare off of her cock and set her on the table.
“Luna, be a dear and finish your job, would you?” Cadance cooed, Luna nodded, blushing hard as she sat on Twilight’s lap. “No, not like that. Twilight fused with your sister, piercings included. She’s forever elastic, please, show her the pleasures only our new magics can.”
Twilight lay confused as Luna rubbed Twilight’s cockhole, fingers gently teasing it’s stretchy flesh that was freshly lubricated with more than a few orgasms.
“Luna?” Twilight croaked.
“Now, now, Twilight, you should hydrate.” Cadance chided, levitating water over to Twilight.
Twilight accepted the offer of hydration and drank greedily, not realizing how much energy and fluids she had expended during her merging with Celestia. Part of her was embarrassed to have done this in front of Cadance and Luna. Which was silly given she had fucked both a number of times. It was also raising questions in her mind as her eyes rested on what was left of her brother.
Questions like was she now Cadance’s sister due to the merging of her brother and Cadance. But more lewd questions of wondering how she tasted now, how her cock felt, how much she could cum given the noticeable bulge that Luna still had.
“If you’re wondering about the cum I put in Luna it is so your balls aren’t empty when she becomes them.” Cadance informed Twilight.
Twilight’s brain did the metaphorical equivalent to failing a backflip as she choked and sputtered on the water.
“What? You think I’d let you cum without the full experience?” Cadance cooed. “You’re my sister, legally and maybe more than legally. We’ll figure that out later, but I was always your foal sitter, so I am protective of you, you know that. And I want to make certain you enjoy yourself.”
Those words left Twilight blushing harder than earlier as she felt Luna using her whole body to stroke her off. Luna’s mouth wrapped around her cockhead, making out with it, her tongue slipping into her cockhole making Twi’s eyes flutter as she bit her lower lip.
“Enjoyable is it not? And don’t worry, we have ways to make certain your new marebreaker can fit under your clothing.” Cadance reassured Twilight, who hadn’t had a moment to give thought about her new features and how hard they’d be to explain to the public. “Trust me though, you’re never going to let those two go once they’re in you.”
To that Twilight had concluded that she really couldn’t, with the lovely kind whispers of Celestia in her mind, the ability for Celestia to cast magic through Twilight’s body to pleasure her, tend to her needs? That was far too enticing to give up, as was the overall increased sensitivity she had throughout her body. And what a body it was, she had felt guilt in the past about becoming just like her mentor, even with Rarity and the others telling her she had grown into her station and had a lovely body for her lovely mind. Now? She loved her body, and loved the mare who had joined her mind.
“And I can see you’ve come to accept our lewd gifts, now enjoy Luna’s joining with you, Twily, you deserve this pleasure~” Cadance cooed once more taking her seat once more, using some hoop on her cock making it vanish, given the bump forming in her stomach, she was fucking herself with her own cock as she watched Twilight and Luna fall deeper into the clutches of lust.
Twilight was uncertain what she was seeing as her cockhole was spreading as Luna switched from fingering it to licking. What she did know was how good it felt, it was akin to having her labia licked and reminded her of when Rarity had demanded to give her a proper education on how mares laid with mares.
As it was Luna seemed entirely lost to lust, licking deeper and pressing her muzzle against the flesh that had once been her sister. Making out with Twilight’s cock and huffing her scent as her hands firmly and rigorously jerked Twilight off.
Then Luna pushed her muzzle inside of Twilight’s cock and it left Twilight confused as she stretched to hold a pony’s face. Letting out a long needy moan as Luna wiggled her face around in the stretchy cockflesh. Need started to grasp Twilight, need to feel her cock stretched out by Luna. To facilitate this she lifted Luna in her magic and began pressing her into her cockhole.
Inch by inch Luna slid into Twilight’s cock, her flesh stretching to hold the alicorn as Luna felt softer than she should, her horn bending like silicone allowing for easy insertion. Luna began gasping and feeling herself up as she was consumed by what was left of her sister.
“That’s it, consume both of the sisters so they may guide you from within.” Cadance cooed as she enjoyed the show. “Become the Queen you’re meant to be, Twilight~”
Twilight couldn’t disagree, given how she looked with Celestia in her she craved having Luna too, to complete herself. To have all their magic, knowledge, and mass as her own. For Luna’s part, she was lost in pleasure, the scent of Twilight’s musk having driven her lust into overdrive as her head slid into Twilight’s forming empty sack.
As Luna’s hooves vanished inside Twilight’s cock she could only help but marvel at the tightness of her own cock, of how she could see the outline of the lunar sister writhing in pleasure, feel the vibrations of her moans, and could feel every little movement within her cock. It felt right, it felt good, and she hungered to ‘swallow’ Luna. A feeling akin to hunger ached in her forming sack, a primal need to consume Luna and break her down.
Because of this Twilight began stroking herself off, pulling Luna deeper into her cock, moaning in pleasure and need. Eagerness to embrace this newfound pleasure, to reach its conclusion and feel the reward of completion burrowed deep into Twi’s psyche. She knew that Luna wouldn’t be the last creature she ate with her cock, it just felt too good to have them in her member. At very least she’d need others to fuck her cockhole, it felt too good to have something in it not to.
As Luna came to rest in Twilight’s now immobilizingly massive sack she couldn’t stop herself from masturbating, and Twilight moved her hands to knead and massage her sack, her magic forming five extra hands, two worked her shaft, two helped her with her massive sensitive sack, and one fingered her cockhole. Cadance couldn’t help but laugh at the lewd display, even if she herself wasn’t much better with how much of a mess she was making herself with her own magic and hands.
Luna gasped as she felt her sense of self loosening, she was starting to have a hard time with her body orientation as her sense of self began fading. Overall she was feeling hot all over, like when arousal ran wild, which made it easier for herself, touching anything was as good as touching her most sensitive parts now. Warmth and fluid pressed in all around her as she gasped and moaned, feeling hands rubbing her from everywhere encouraging her to relax more and embrace the warm darkness around her.
She groaned in pleasure as she felt as if something spilled out of her, mixing with the warm fluid around her, some part of her knew it was the load of cum she had in her mixing with the fluids in Twilight’s sack, she tried her magic and got a moment of pale light before her horn melted away. In that moment of light she could see that she herself was becoming little more than cum.
This excited her to no end, to finally become one with her sister, to have found where she was meant to be. Long had she known her place was at the side of her sister, but this felt like her destined place, to be part of something greater than the both of them, in the birth of a new ruler for their realm. Now she could be beside her sister forever, to be able to do her duty of raising and lowering the moon, of guarding the dreams of their citizens. But most of all, doing it in tandem with her sister, serving together to their people and their Mistress.
Embracing her new life as nothing more than an organ of pleasure for Twilight, eternally tied to her sister, she lost herself in pleasure as her final climax rocked what was left of her form before her mind joined her Sister’s within Twilight.
Twilight laid back gasping in pleasure as her cock drooled pre and a familiar ring of magic clamped down on the base of her cock, the color was the same as what surrounded Cadance’s horn.
“Now now, if you cum now she’ll be plastered against your lovely walls. We want her to become part of you, so you can produce plenty of cum.” Cadance chided Twilight, though it felt far more playful. “So let yourself just calm down for a bit before we put the rest of your body to work~”
Twilight nodded, there was much work to do. She had to introduce her friends to this lovely new world of pleasure, and Equestria itself. Maybe it was time to figure out how the Crystal Heart worked to speed up the process of spreading this lovely love magic to all of her subjects. For now though, she rested and regained her strength, even if she had been in a way blueballed, she loved her new body, her new ‘sister’.
In her time of resting she used her magic to view her new self, her body fitting the title of a matriarch was far more lovely than she could have dreamed, she knew she was as strong as Celestia, Luna, and herself combined now. A strength that was going to be rather useful for the fun to come later. Her stomach was white with speckles of her normal purple, her sheath was a dark blue of Luna, as was her sack, while her cock itself was a lovely mottled white and black.
“Mmm, a proper Queen you are now, Twilight, and don’t worry, we’ll cure your case of blue balls I gave you.” Cadance purred as she began to massage Twilight’s sack. “Just lay back and let your Princess of Love tend to your needs~”
Twilight couldn’t argue against it, nor was she one to refuse the masterful work of Cadance.
