The walk down through the castle was effort enough for the two mares given their current predicament, and they were grateful when they finally reached the waiting chariot. Each step caused the belt just to move slightly, resulting in the crystal within to move within their marehoods, slowly building up pleasure. The squeezing of each breath just added to the excitement, as it just reinforced how restricted the pair were.

The restaurant Shining had chosen was luckily far enough away from the palace to justify a chariot so they didn't have to walk there, and the crystal ponies and changelings waved to their leaders as they rode past. Both Princesses waved back to their subjects, but Chrysalis was close to cracking thinking about what would happen if her subjects knew what she was going throught. Oh, Twilights so going to get me back for the public humiliation I caused her...not that that's necessarily a bad thing!

The arrived at the restaurant on the edge of the empire, a large but friendly looking place. As they stepped out of the chariot and thanked the ponies that had pulled them, the trio noticed the maitre d’ was waiting outside and looked a little nervous. A couple of guards would have arrived a few minutes before them, and that was probably the first time the restaurant knew who would be visiting that night.

“Crystal Princess, Crystal Prince…and your guest” he bowed down low infront of them “We are honoured that you have decided to patron our humble establishment”

“Sir, please rise” Shining asked, extending a hoof to the crystal stallion to help him up “We are just here for a nice meal, no need to get all nervous and formal round us.”

“But but but but you are royalty!” the pony stammered.

“Please, just treat us like you would any of subjects, pony or changeling” one of the Cadence’s replied Hmmmm Shining thought to himself I wonder which one said that? Gah, this may end up bugging me!

“But of course Princess…er…Princess and Prince” the stallion looked around nervously “You do have a reservation but not in a private booth or anything…I didn’t know who the booking was for. I apologise!”

“Don't, that’s perfect and why we booked in a false name. We want our subjects to treat us the same as anypony else and so there no need for any privacy” Shining replied warmly to the stallion

Except for the carved crystal plundering my marehood both Cadence’s thought to themselves, causing their muscles to instinctively contract and then relax around the object.

The maitre d' led them in and to a table right in the middle of the restaurant. The restaurants décor would be best described as homely and not too extravagant. As the establishment was known for it’s food rather than its status, it had kept itself humble and that meant there was a good mix of ponies from all walks of life – some were dressed up like the royal party, but others wore simple outfits or none at all. It was the sort of place Cadence and Shining Armour loved to visit during their courtship, good and honest.

The beginning of the meal went smoothly. The two Cadences settled into their positions, figuratively and literally – the tightness of the corset and the occasional twinge from their marehoods were a constant reminder of their bondage for the evening. Moreover, eating and drinking the traditional way like the rest of the crystal ponies just reminded them of the lack of magic as well. The trio chatted about the various things that happened during the day, but Shining could tell that the pair of pink ponies were obviously a little distracted.

About halfway through the meal, the Cadences looked over to each other both with the same thought on their mind. In perfect unison, they spoke to their husband in unison “Excuse us whilst we go and powder our muzzles” and the pair stood up. Shining also got up in the gentlecolt fashion and the two mares gingerly trotted to the little fillies room.

As soon as they got to the door, they asked one the guard to stop anypony else from going into the bathroom with them, which the guard nodded and took up his position. Once they were inside, Chrysalis turned to Cadence “Looks like we both have the same need. But, can we…er…go with these on?”

“Not without using magic, but it’s an acceptable reason to take these off” Cadence pulled the ring off her horn and Chrysalis did the same and both entered into the two vacant cubicles. Chrysalis decided now was the right time to ask something “Cadence, does everything since my arrival feel different somehow?”

“Why yes, now you mention it. Everything intimate has been feeling more powerful than it usually does!”

“I think I know why. I…may have gone a little overboard with my duplication spell” Chrysalis admitted

“What do you mean?”

“Well, I think somehow that when I was scanning you, Shining sudden interruption caused me to not break the link properly”

“And that means?”

“Basically, our minds are linked and the effect is higher when I'm in the same form as you. I think that’s why we are giving the same responses and also feeling more aroused than usual…everything’s being doubled”

The pair left the cubicles at the same time and started washing their hooves. Cadence turned to her duplicate “Oh dear…is it dangerous?”

“Not at all” Chrysalis smiled back “It'll fade once I leave so we'll be fine as long as Shining Armour doesn’t find out. I’m sure he would love to be able to use it against us!”

Cadence pushed the ring back over her horn, the Queen noticing this and doing the same “Oh…how I wish you didn’t say that. You see in Equestria the bathrooms are magically shielded to prevent any peeping toms, but there is no need in the Crystal Empire where there is no magic. That means Shinings been listening in to the whole conversation…”

“Really?” Chrysalis gulped

“Yes, it’s to make sure I don’t cheat!”

Shining smirked as he monitored the conversation from the table, the faint aura of his horn not noticeable in the brightly lit restaurant. He reached out with his magic until he found the two magically charged objects he was after and activated them. Almost instantly the two mares squeaked as the crystals buried deep inside them began to slowly vibrate.

“Wait, do you…” Chryslsis started

“Chrysalis, yes I feel it too." Cadence almost deadpaned back as her breaths increased "And Shining would be expecting us to suffer in silence now.”

The two mares stood there as the crystals vibrations started to grow in intensity. They tried to take deep breaths to steady themselves, but the corsets prevented them from doing so. The lack of air combined with the deep vibrations from within and the shared connection quickly started clouding their minds, and the pair were unable to do anything but stand there, barely able to stand let alone return to the table. Their bodies natural instincts were in control of the pair now, welcoming the pleasure and trying to encourage more from the intruder. The air soon began to fill with their scent, and with the soft moans of the two mares.

Shining could monitor the feedback from the crystals in his aura, using the spells contained within to sense the mare’s simultaneously approaching orgasm. After a few moments, no doubt to the mare’s equal relief and horror, he turned off the crystals leaving the pair panting right on the edge.

Instinctively both princesses pushed a hoof down towards their slits to finish themselves off, and form of decorum forgotten in the need to finish themselves off. However, their hooves bounced off something metal rather than finding their moist flesh crying out for attention. As there sensibilities returned, they remembered the chastity belt prevented them from gaining any access to their marehoods, and the corset covered their nipples preventing any stimulation. The pair stood their looking at each other as their bodies slowly recovered some composure, their wings that had flared out slowly falling back against their bodies. They just moaned in annoyance as they realised release wasn’t coming that easily. After a quick check on their makeup, the pair of pink princess left the bathroom.

Meanwhile, Shining chuckled to himself at the table, the waiter who was just nearby noticing this and looking at him, but having no idea why the stallion was so happy. Oh how I wish I could share this with somepony Shining thought to himself but I don’t think any of the crystal ponies could cope with what I could tell them about my beloved Cadence

The trio of ponies were slowly making their way back through the crystal palace. The journey up the many flights of stairs was much more taxing for the corseted princesses, so it was taking longer, but Shining was in no rush as he still had the rest of Luna's night available to him.

The rest of the meal had gone without too much more excitement. Every so often Shining would just make the crystals vibrate a few times to remind the pair of what was to come. Each time their marehoods would react by trying to move the objects and of course each failure just reminded the princess and the queen just how helpless they were.

Having finally reached their private quarters, as soon as the door was shut and a soundproof shield was cast, Shining armour ordered the pair to remove their dresses. The pair managed to help each other out, struggling without using their horns and soon as they had finished Shining told them over to go over and lay on the bed, where ropes were already been levitated in preparation.

The pair lay down on their backs as instructed and the Cadences soon found themselves spread-eagled by their hooves on the bed side by side, the end of the ropes well out of reach. He then placed rubber balls over their hooves and locked them, preventing them from manipulating anything. Of course it was overkill given nothing was within range, but Shining Armour wanted make sure that his captives weren’t going anywhere.

He sat down between the pair, and used one of front hooves to gently rub each of his beloveds cheeks “Well, you two did a wonderful job and I couldn’t tell the two of you apart. For that you deserve a reward…”

He then moved down and knocked on each of the chastity belts “However, you tried to pleasure yourself without permission, which deserves a punishment!” The pair looked up to the stallion as he rubbed his chin “Now, which one should win” he smirked.

His horn lit up and the two crystals sprung to life again, vibrating strongly within his wife and her duplicates moist marehoods. Shining just sat there between them, looking at them in turn as the vibrations set to work on the helpless ponies. As they began to moan softly, he levitated over a pair of muzzles and forced them over their heads. Of course it didn’t prevent the cute moans and grunts from escaping from the duo, but took away their voices, another thing that they previously could control.

The pair began to lose control of their thoughts as the crystals relentlessly vibrated deep amongst them and the pair’s connection meant their senses combined. It felt like they were being double penetrated but equally they knew that it was only one – the confusion from the mixed signals just added to the sensations rolling around their minds.

As they began to approach release, their bodies struggled against their bonds which held strong despite their enormous alicorn strength. The extra effort as well as the excitement building within meant they tried to breathe as much as they could, but the corset prevented them from doing so. Cadence knew her body could take it and that in fact Alicorns were practically unable to pass out– it was a blessing when required, or equally a curse if used against them. Chrysalis hadn’t done this before and so was worried about passing out before orgasm Oh please let me come, please

The stallion looked down at the two versions of the mare he loved, and started gently stroking his stallionhood with his Aura. He knew that before he had come along, it had been a dry few centuries for the Alicorn since here previous lover, and was glad he could do whatever he could to make her happy Unlike the first time he thought to himself.

Looking down at the pair, he noticed the flickering of the eyelids and knew the tell-tale signs of his lover approaching release. He was tempted to stop the crystals again but decided that would be too cruel given just how close the pair was. Seconds later both Cadences came at exactly the same moment, making Shining Armour smile to himself My, that changeling copied my beloved exactly

As the pair fell from their high, struggling to breath around the muzzles and bound ribcages, shining saw both mares begging with there eyes to turn of the vibrators, but instead slowly climbed off the bed, his engorged member swaying below his belly. “Oh no Sweetie, your rewards was to turn them on, you punishment is that I’m not turning them off”

Both mares eyes bulged and tried to beg with him, but he ignored them and trotted over to the nearby chest, returning with a pair of silk scarves. The pair moved their heads about to resist but he effortlessly blindfolded the pair of them. Cast into darkness, within moments they both came again in perfect synchronicity.

Shining lowered the rate of the crystal vibrations, sat himself down on a nearby cushion, and monitored the alicorns for the next hour or so as the pair came five more times. Each time was a little softer than previously as their energy reserves started to deplete. Shining knew that any normal pony would have passed out many times by now, but that his wife was blessed with such inner strength, one he loved to make her test.

As the seventh orgasm of the night subsided, shining turned off the crystals, he assumed to the relief of mares. Both lay there panting as much as they could, sweat dripping off of them and the smell of arousal and their juices wafting around them. Shining teleported the corsets off the pair allowing them to take deeper breaths, and their bodies expanded meaning the chastity belts reminded securely on.

Shining climbed up between the pair and leant down between the heads, so he could whisper into both of their ears.

“You two have been such good mares tonight, I think you deserve a little treat, so I’m going to leave those wonderful likeliness of mine buried deep inside of you. Really, I don't know if you deserve such an honour” he finished with an inward smile.

Shining removed the ropes from one of the mares hind legs but before they could move much he bound the fetlocks together, as well as the hock, forcing the legs closed. He repeated the same to the other mare, receiving no resistance. He then proceed to undo one of the the hoofs and connected the ball from one hoof to the other, binding the front legs together. He repeated this to the other mare as the first wriggled around a little, testing the bonds that were secure.

Shining used his aura to move the pair of princesses into a comforting spooning position, and then placed a sheet over the three of them. “Well, it’s time for bed, so goodnight. With those covers on, and suitably muzzled, your should be unable to remove the rings. But don’t even try as if you succeed, you’re going to have a bad time when I wake up!”

Chrysalis woke up to find herself still bound, gagged and blindfolded, but felt completely safe as she could feel a pony in front of her and behind her. The pony in front was squirming a little and from the soft downy feathers on her chest she knew it was Cadence, equally as helpless as her. And behind her Shining Armour held onto both of them tightly, his warmth spreading through her body, and she nestled up into him There's something about the Sparkles thats so comfy Chrysalis thought to herself as she snuggled into the stallion.

Some time passed before a loud yawn was heard and the pony behind heard started shifting "Good morning Cadence" Shining spoke softly and nipped Chrysalis ear, causing her to yelp through her muzzle. Shining then wished the other cadence a good morning, but the queen didn't hear a yelp. Shining then proceeded to remove the blindfolds, muzzles and finally the suppression rings off of the pair, and levitated over a glass of water to each. The mares shifted themselves despite their bounds until they were sat up and then took the glasses in the aura, before gulping down the drink quickly.

Shining sat there watching them "I now at least know which one of you is the real one. Cadence knows always bite her ear in the morning, so you - " he pointed to the changeling " - must be Chrysalis. But last night, I really couldn't tell the difference!"

"Does that mean I get punished now I've given it away?" Chrysalis asked

"Nah, you girls did wonderful job! But I suppose I'll release my wife first as her reward"

Shining slowly undid the ropes binding Cadences legs with his hooves, rubbing her legs softly as he did. He then proceeded to release the rubber mitts from her hooves, allowing her to stand for the first time in hours. She got up onto her wobbling legs and looked down to the once piece of bondage remaining. She tried to use her magic on it, but it resisted as it was designed. "This damn contraption, I'm so regretting bringing this old piece of technology into our love-life!"

Shining smiled as he undid the belt with his magic, and slowly started withdrawing the crystal stallionhood. He moved it as slowly as possible as one final tease to his wife until it emerged. Putting it to one side, he took a deep smell of his wifes marehood, enjoying the aroma "I'm not, if only you could have seen your face when your hoof knocked against the metal!" and he turned to face the bed "Oh, I suppose with Chrysalis there, you could!"

Cadence turned round with mock fury "Shining, what you did in the restaurant last night was very cruel of you” she scolded her husband, whilst giving him a gentle peck on the cheek "You have no idea how frustrating it was for the rest of the meal!"

"I do!" the bound changeling called out, causing the three of them to laugh.

Cadences stomach suddenly let out a growl, and with the two other ponies looking at her, she blushed "I'm hungry I guess, I couldn't really eat properly last night with that tight corset. Has breakfast arrived?"

"It has, I've laid it out already, but shouldn't you shower first?"

Cadence stomach rumbled again, followed by her duplicates "I'll shower after I've eaten" the mare half sang as she skipped over to the breakfast table "I suppose we better untie Chrysalis so she can join us for breakfast"

Chrysalis "Well, actually, I haven't eaten for nearly 36 hours"

"Thats why you should have breakfast, it's the most important meal of the day!" Cadence replied as she scanned the food laid out for them.

"No, I mean my sort of eating...the sort I did on you two nights ago"

Something clicked in shining brain "Hmmm, and whilst you haven't eaten, I haven't had my release yet either," and the stallion turned towards his wife "Cadence, I don't suppose..."

"No, go ahead," she interrupted waving her fork with her magic "this salad is more then enough to satisfy me right now!"

The changeling rolled her eyes, guessing what was to come.

"I think it will be nice if you changed back into your natural form for this one Chrysalis. Can you change back whilst keeping yourself bound?" Shining asked

"The ropes and cuffs yes, but not the chastity belt as it's magic resistant, remember" Chrysalis replied. Shining proceeded to remove the belt, and the crystal as slowly as he did his wifes. Once it was free, Chrysalis slowly retook her form using her magic to adjust her own restraints as she did until she was her usual dark self.

"Perfect!" Shining grinned, and he quickly placed the suppression ring over the changelings horn, cutting off the queens magic again.

"Hey, I need my magic to feed!" she whined, met with another rumble of her stomach.

"You'll get that back just when you need it" Shining began, as he levitated the scarf back over the changeling eyes and blindfolded her. "But first, you need to earn the love you're about to extract" The Stallion picked up the changeling in his Aura and helped her settle down in the centre of the bed in a more suitable position. Without magic or eyesight, she couldn't be sure what was about to happen, but the prod of a familiar object at her mouth soon told her.

She opened up her mouth and the prince slowly pushed his stallionhood in, slowly to allow Chrysalis to get used to it. As soon as it had entered, the changeling instinctively started lapping at it tip, before shining pushed it further into her mouth. The Queen rocked her head backwards and forwards, sometimes pulling back so she could lick the sensitive tip, other times taking as much of the stallion inside her as she could.

Chrysalis had done this before with Shining Armour, but only when disguised as Cadence. As the Queen was larger she found it easier to cope with his girth and could use her century honed techniques on the stallion. She had to be very careful about using her mouth on the stallions flesh, making sure her fangs stayed well away, and she focused all her thought onto not hurting the stallion.

Cadence watched from the breakfast table as the bound and blindfolded changeling pleasured her husband, and found the site of their former enemy helplessly sucking her husbands stallionhood quite a turn on. Without realising it, a hoof made her way down to her marehood and she began to absentmindedly start to pleasure herself as she spoke out loud "You know, we could keep her as our plaything now, couldn't we?"

"It would be a suitable payback for what she attempted" Shining replied, his breath shallow from the pleasure building up within him "I doubt she would have been as generous had she suck-ceeded!"

"It'll be fun to have a pet around the place" Cadence replied "Once we properly break her in that is. It'll be nice for the foals to play with....should we have any!"

"We make the laws up for the Crystal Empire, I can't see why we can't make changelings our pets. And she does look very cute all tied up like this. Imagine a little collar with a bell on..."

Chrysalis was pretty sure that the pair was just toying with her, but she found herself not caring as she focused her thoughts on just pleasing Shinings Stallionhood. She felt it quiver under her mouth attention, and suddenly her magic returned as the ring was removed. She used her magic to start to draw the love up through the stallions cock, and the pleasurable warmth that accompanied it was enough to push Shining over the edge. Chrysalis suck the seed and his love in equal measure, until she had taken her fill of both.

Cadence watched this unfold from nearby when suddenly releasing where her hoof was she sadly removed it from her attention and continued eating. She knew that there was a lifetime, well her husband lifetime, of experiences to come and she could wait until the evening for her next orgasm.

Meanwhile Shining regathered himself after his release, and moved off of the Queen. Using his magic he removed the ropes, cuffs and blindfold from the Queen, and helped her up to her hooves. Giving the Queen an affectionate nuzzle, he whispered a thank you before the pair joined Cadence for breakfast, a more traditional start to the day.