Starlight Glimmer looked around the dressing room the castle had revealed to her. The maid uniform was still one of her favorites, but the student one had certainly been good—if only because she had been filled with need to learn.

She walked down the aisle of the room, unable to decide on if she wanted to be a cook, or maybe a hoofmaiden. Her mistress had told her to pick an outfit, put it on, and come back to their playroom.

It was a special day for her, and for Sunburst: today she was going to get pregnant. She had to close her eyes for a moment to think about it. A new life was going to grow within her, and she would be their mother. It hadn't been a light decision; Twilight, Sunburst, and her had spent many hours talking about it.

Starlight froze at a new rack in the room. Her body trembled at the sight of the uniform. Reaching out with her magic, she found the description on the hanger: wet nurse.

"I wonder how far the enchantment on this will go?" Starlight lifted the uniform from the rack, and walked back to the changing area with it.

There were multiple layers to the uniform, it wasn't all about sexual appeal. The shirt was white (of course), and was just thin enough to let Starlight's natural fur color show through. She set the shirt aside. A flowing dress (also in white) looked like it would just brush the floor around her hooves should she put it on: the castle had made this just for her.

The underwear was unique. Normally there was a tight piece that emphasized her vulva and anus, but this time the focus was elsewhere. Starlight held up the underwear and saw the cloth that would normally just slip up between a mare's flat udder instead had two large curves to it, and each curved cup had a hole in the middle.

Of course it was enchanted, but Starlight cast a simple detection spell on the underwear anyway. They glowed brightly to her spell-shored sight, but nowhere so bright as those cups. Squealing in glee, Starlight Glimmer held the panties just before her back legs and stepped into them.

Pulling the underwear up, Starlight already felt a slight tingling from her flesh. When she tugged them into place, the tingling grew focused between her legs. Starlight's mouth opened, and she stared with shrinking pupils and tucked-back ears, as an odd weight seemed to settle into the cups of the underwear.

Starlight clamped her mouth closed again, catching her bottom lip between her teeth. She looked at something else on the hanger, and almost lost control. With a shaking hoof, Starlight reached out to touch the collar. A tiny zap of magic jumped from her hoof to a metal plate on the collar, and before Starlight could respond, the collar jerked to life and launched itself at her.

Shield magic is very special among unicorns. When a magic shield is built, it would seem that the unicorn is cutting themselves off from the world behind their barrier, but they aren't. Any shield a unicorn experienced in any form of combat would create is specially tuned to allow several things to permeate it: air is the most important, followed by sound (although Starlight had found use in creating one that is limited on that front), but most importantly a unicorn's shield should allow their own magic to pass through it.

Starlight Glimmer was an exceptional unicorn. Her magic had been honed in combat on several occasions, and she had studied under one of the most powerful ponies to ever exist. Her shield flew up quickly, tight as a drum and ready to defend her from anything up to and including an alicorn's attacks. Unfortunately for Starlight, the jolt of magic the collar had stolen from her to animate itself tuned its magical aura just right.

The collar flew right through her shield and latched around Starlight's throat.

"What is it do—" Starlight felt odd; her magic shield snapped off, and all her magic seemed to be diverted elsewhere. Wobbling on her hooves, she felt more weight settle into those odd cups, and a strange sense of warmth growing between her legs.

Closing her eyes, Starlight Glimmer took ten slow, deep breaths. She knew full well what the uniform was likely to do to her before putting it on, and she welcomed every aspect.

Fumbling with her hooves, Starlight opened her eyes and reached for the skirt. Recent practice in working without magic had made pulling the skirt on easy enough, until she squeezed her legs together. Pressure against what she now knew to be a swollen udder of milk, almost made her moan.

Setting her back legs a little further apart, Starlight reached for the shirt and pulled it on next. Buttons were tricky with her hooves, but she got each one fastened up, and the shirt neatly tucked into her dress.

Starlight turned slowly, careful of not squeezing with her back legs, and looked in the mirror. The mare that looked back was a far cry from the powerful unicorn the world knew her as. The shirt and skirt made her look more plain, particularly since it hid her magic-adept-focused cutie mark. She half turned back, and used a foreleg to lift her skirt.

With her legs slightly further apart than usual, the two heavy udder pouches were clearly visible, supported by the underwear. Starlight's heart sped up at the sight, and she knew that the uniform of a wet nurse would make her enjoy being milked more than anything. Suppressing (barely) a giggle, Starlight opened her mouth. "Mooo…"

Tilting her head up, Starlight started to walk to the door and felt her udder swaying under her with each step. Her normal walking pace was not going to work. Each step Starlight took caused the udder to shift, and she knew full well that the shift was in time with how full it was, and that to step at the wrong time would cause her to kick her udder.

After a few more false-starts, Starlight finally worked out the pace she needed. It was ponderous, walking with the wide-legged gait that a mare with a full udder would take, but Starlight adored every second of it.

Twilight's playroom was not far from the dressing room, and it was right beside Twilight's bedroom. The castle had seen a need for its owner, and had obliged her. As Starlight neared the door, she saw Sunburst coming from the other direction.

Sunburst's eyes nearly bugged out of his head at the look of Starlight. She looked as happy as a filly, and walked like she had a heavy weight hanging under her. His eyes took in every detail, from the plain clothing to the collar. He opened his mouth to ask what she was dressed as, when he noticed the metal tag on the strip around her throat. It had just a single symbol on it, a foal's bottle of milk.

"I look ridiculous." Starlight smiled from ear to ear. "But wow did the castle pick something good this time. Wet nurse." She shifted her hips as she stopped, her body picking up the natural ways for a mare to move and keep herself from harming her udder. The weight under her stopped swaying and settled heavy in the cups of the underwear.

Blinking in surprise, Sunburst lifted a hoof to his fuzzy chin. "Wait, a wet nurse? But you would have to be able to give—"

"Milk. My udder filled up the moment I pulled the panties on. It's so heavy, Sunburst. I am going to need to be milked." Just saying the words made Starlight grow hot. She wondered if her mistress would milk her, or if Sunburst would be delegated the task.

"You're going to be with foal for real, soon." Sunburst ignored the costume, leaned forward and kissed Starlight. Their lips barely had time to meet before they parted. "We will have a foal."

Starlight purred softly, nuzzling at Sunburst's cheek. "We all will. Did Mistress say she would be ready for us?" She couldn't help herself, giving Sunburst's snout a little lick.

"She said for me to get cleaned up and to knock when we get back." When Sunburst lost track of his thoughts at repeated licks, he had to pull back a little. "By Celestia you are distracting." His face curled up to a wider smile. "I love you."

Three words that never failed to steal a mare's heart, and they stole Starlight's. All the magic and games sloughed away for a moment. "I love you, too." She kissed Sunburst, and reached a hoof up to knock at the playroom door.

"Enter." Twilight's voice, from within, sounded excited.

Sunburst broke the kiss and turned. He opened the door with his magic and stepped through before Starlight could. "Your royal Highness, I present the castle wet nurse, Glimmy." He backed up and to the side, making room for Starlight.

Twilight, well in the mood for just about anything, sat on a pile of cushions. She watched as Starlight practically waddled into the room. "We have a wet nurse?" Her mind ran with ideas for using this new bit of fun. "Very well, fetch me a glass of fresh milk."

Nodding, Sunburst focused for just a moment, and felt a glass in the kitchen below. Teleporting small objects was just about the extent of his magic, but he managed it without breaking the glass. His focus shifted to Starlight, and he watched as she turned to present her back end to Twilight—to their mistress.

Getting hard already, Sunburst realized just how much he was warming up to the dominance games. A pony would always do what their princess said, but now there was something much more intimate about her words, her commands.

Starlight stood still, waiting for Sunburst to do his thing. She had no idea if he had ever milked anything before—let alone a mare—but she was more than excited to find out how he would do. Her dress was lifted, and she knew she was fully exposed before not just Sunburst, but also Twilight Sparkle—her mistress.

The moment his magic touched her left teat, pleasure exploded. Starlight let out a lusty moan as Sunburst squeezed down, but only a small dribble came free. He tried again and again, but barely a few drops left the whimpering mare.

"Royal milker, you are doing it wrong." Twilight leaned forward and lifted herself from her nest of softness. Walking forward, she swayed her hips exaggeratedly, and loved the hungry look that lit in Sunburst's eyes.

Walking closer to the two ponies she now thought of—in this room at least—as her pets, Twilight leaned against Sunburst's side. "If you learn well, maybe there will be two mares getting pregnant today."

Sunburst had been growing harder steadily, but Twilight's words made his shaft turn to iron. He strained to hold still, the animalistic part of his brain urging him to just jump up and to the side, to mount Twilight and breed her.

"Sunny, you need to watch." The sight of Sunburst, one of the most scholarly stallions in all Equestria, losing track of things because of her made Twilight's dominant side purr. She was in full control. "When a foal drinks, they suck and pull down on the teat, like so."

Starlight, having waited patiently for Twilight to take charge, moaned long and low as a firm grip caught the base of one teat and rolled down it. The sound of a squirt of milk hitting the bottom of the glass was pure music to her magic-enhanced senses.

Sunburst gulped. He remembered the insidious outfits, and how they molded the wearer to their purpose. He had a moment to wonder what it would be like as a stallion to wear the dress, before he was given room to milk his beloved.

Twilight watched as Sunburst took over. Each of his three following tries brought moans from Starlight, but when he got it right, when milk flowed from Starlight into the glass, she visibly climaxed.

Clamping her mouth closed, Starlight screwed her face up at the intensity of her release. It had been a rush, coming out of nowhere. She locked her legs and weathered the trembling every other muscle seemed to suddenly do.

"Lick her, milk her, fill my glass and we can continue." Twilight turned and walked to her nest of cushions. By the time she reached them, Sunburst was nuzzling against Starlight's vulva, his tongue pushing the underwear strap aside and diving within. "Good, now milk her."

Not himself anymore, Sunburst felt like an extension of Twilight's will. He was a tool, a toy for the princess to play with. His magic wasn't even on a scale comparable with the two mare's in the room, but he had learned to do something new with it, and put the skill to work.

Just the milking would have kept Starlight rolling through orgasm after orgasm, but with Sunburst's tongue working around inside her, she felt her forelegs wobble and collapse. Starlight barely noticed the change in position. Between the magic tugging at her teat, and the stallion lapping deep into her, Starlight slowly fell into a deliciously thick fog clouding any thought beyond her desire for more.

Sunburst had to adjust the glass when Starlight fell forward. Once he had it positioned again, he continued milking her. Her scent and flavor was overwhelming, and he longed to climb on her back and fill her properly.

"The glass is full." Twilight had let Sunburst spill a little of the white liquid on the floor before telling him. "Bring it here and even her out."

Sunburst jerked to his senses. He shook his head to try to clear the arousal that threatened to take full control of him. Focusing on the glass, he lifted it. "Mistress? What do you mean by 'even her out'?"

Twilight claimed the glass with her own magic the moment Sunburst brought it near. She lifted the glass to her lips and sipped from it. The milk certainly wasn't the richest or creamiest she had tasted before, but the warmth of the source, and just knowing the source, made it the best. "I mean you need to milk her other side to balance things out. Look at her, pet."

Turning from staring hungrily at Twilight, Sunburst gazed upon Starlight's plot, and his eyes focused on her udder. It was hanging sideways, the teat he had milked sitting higher than the other. He started to use his magic to summon another glass when his power was snuffed out by one much greater.

"Pet, not with a glass. Do it—do it the old-fashioned way." Sipping again, Twilight found she quite enjoyed Starlight's milk. When she saw Sunburst look between herself and Starlight, she rolled her eyes. "Suckle from her."

Sunburst's hips twitched at the thought, at the command, and at the whole situation. Twilight Sparkle, his mistress, had just commanded him to go to his greatest love and suckle her milk. His hooves started to move, and his balls ached at all the teasing without him getting any release. When his brain could think a little, he managed to remember to reply. "Y-Yes, Mistress."

Watching Sunburst advance on Starlight gave Twilight an enormous hit of dominant bliss. Her word was not just law, it was everything to these two. She could tell them anything she wanted and they would do it. Laying to her side, she reached between her back legs, and a little further, to rub at her own body. Of course, she could have one of them do it, but sometimes a mare had to get her hooves dirty.

Starlight's brain wasn't processing so well. She was coming down from a wave of orgasms that had left her a gooey mess in more ways than one. She blinked at the sight of the door before her, and with no commands just sat in place.

A touch to Starlight's neglected nipple made her let out a soft whimper of inquiry. The moment a pair of lips closed around the soft flesh of her teat, she released a full-throated moan. Her eyes fluttered shut, and when she felt the first suckle at her teat, Starlight's mind left the building.

Sunburst didn't need a book to know how to suckle from a teat. This particular part of a mare's body was quite literally the only thing in life no pony needed to learn how to work. His tongue curled into a rough cylinder, and his throat worked. Milk filled his mouth. The taste of Starlight's vulva mixed with the new taste for nearly three sucks before it was overwhelmed.

Twilight took out her new favorite toy and lined it up with herself. Casting one more look at Starlight and Sunburst, she pressed the dildo against her vulva, using her own natural lubricant to push it past her entrance. "Oh yes. Suckle like a good pet, Sunburst, fill me up."

Oblivious to his mistress, Sunburst lay on his belly, forelegs lifting his head only high enough that he could angle his mouth up to the underside of Starlight. He closed his eyes as he drank, guzzling down mouthful after mouthful, but each time he did he realized he was gulping a little air with it.

Working her toy deeper with each stroke, Twilight rolled to her belly and arched her back. "The most wise stallion since Star Swirl; the perfect father for my foal." She imagined Sunburst on her back, fully in her control as he rutted her body.

With the toy plunging in and out, it didn't take Twilight Sparkle long to reach her climax. She was filled with the bliss of dominance, and with the physical sensation of a stallion inside her; she just needed one more thing.

Moaning in pleasure, Twilight Sparkle activated the dildo and felt a hot rush of seed blossom inside her. "Yes! Oh Celestia, yes! Fill me with your foal, Sunburst!"

The shout shattered Sunburst's dream-state. He had been a good pet, feeding from his mistress' other pet one moment, then it sank in what Twilight was shouting. He pulled away and swung his head around to see the toy Thunderlane had filled with his seed discharging into Princess Twilight Sparkle. "Oh buck..."

Author's Note

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