Three days of working her body and Milky had decided sleeping in might be a fine thing to do. When the morning sun came around instead of getting up right away she let herself lay in bed for a little longer. Not without a peek under the covers to see that her body had returned back to prime working form after her day with Rarity and her unique method of milking her. While that had been a new and enjoyable experience she wasn’t sure how many more of them she could take before they put her down for the count.

“I’ve never been this popular in my entire life.” Milky mumbled, using her hooves to push her teats across the bed as she rolled over to get comfortable. “Also why are you two so active lately? Something in the water in this town...” Closing her eyes Milky gave a yawn and let herself drift off again.

That is until there was a knock at her hotel door.

“Who the hay... I know I paid up for the week when I got here.” It better not have been housekeeping. She had the sign on the door for a reason and hadn’t yet stowed away that special outfit Rarity gave her to take back home. Stumbling out of bed Milky staggered to the door and swung it open.

“Hello? Who’s there?” She asked, looking around before tilting her head downward and eyes widening in shock. “Whoa... are you a dragon?”

“Yeah... wow... you must be Milky Way.” The little purple dragon said, looking through her legs where he had a perfect vantage point to see what was hanging between them. There was a moment of surprised silence until Milky broke the tension.

“So... can I help you?”

“Huh!? Right, hello! I’m Spike. Rarity said that you would be staying here so I came by.” The little dragon said, now looking up at her eyes.

“You’re a friend of Rarity? Did she need me again?” Milky asked, wondering if maybe the seamstress had come up with more clothing for her to model.

“Actually someone else wanted to talk to you. My friend Twilight Sparkle is in the library here in Ponyville. She wanted to know if you could come meet her. Something about a job she wanted to hire you for?” Spike asked, shrugging his shoulders.

“Word is getting around pretty fast... sure, I’ll be glad to meet her. Can you tell me where the library is?” Milky Way asked, Spike giving her directions as best he could with her limited knowledge of Ponyville. Once they were both sure Milky knew which direction to go she said her goodbyes to the little dragon and headed back into her room to clean up.

While it might have been nice to take a break during her trip it would have been foolish to ignore good money. Work was her first priority and after doing up her mane to satisfaction Milky Way got a bite to eat and headed off to the library to meet her next client. The directions Spike gave her were easy enough to follow and thankfully the library itself was even easier to recognize, the building being made out of a hollowed out tree. Approaching the door Milky gave it a knock.

“Just a minute!” A pleasant voice called out, the door opening shortly after as a purple unicorn greeted her. “Hello, can I help you?”

“Um... are you Miss Twilight Sparkle? A little dragon named Spike said you were waiting for me.”

“He did? Wait, yeah, of course he did! Right this way, please.” Twilight said stepping aside for Milky Way to walk in. “Sorry about that, I’m a little scatterbrained when I have a number of things I’m working on at once. It’s nice to meet you, Rarity said so many nice things when she let me know how you helped her.”

“Really? That was kind of her, we just met yesterday.” Milky said, looking up the walls around her. “Wow, this is a really impressive library.” Twilight giggled in appreciation at her words.

“Right? I can’t take credit for it. I just moved in after the previous owner moved out, but I really do like it.” Twilight said, admiring the view of books along with Milky Way.

“So did Rarity mention um... why I’m in town?” Milky asked, not wanting to push the subject towards business so quickly after meeting but not sure what else to say, really.

“Indeed she did, you’re here to sell your milk, right? She mentioned it was your special talent.”

“Yes, it’s kind of an odd one I know but it’s the one I earned.” Milky said with a shy smile. “But I don’t know what exactly I can do for a librarian?”

“Oh there’s lots you can do to help me. Would you mind joining me in the basement?” Twilight Sparkle asked, moving behind her staircase and opening a door to reveal another set that lead down stairs. Milky agreed and followed along.  As they went down the zigzagging stairs Milky noted that there was a lot more room than she expected beneath the library. Not only was it well lit and spacious it was filled with a number of pieces of equipment.

“I’ve never seen a room... scratch that, I’ve never seen anything quite like this before.” Milky Way complimented, looking around at all the machines and strange vials. “This was all here when you moved in too?”

“Oh no, I had to add all of this on my own as time passed by. Thankfully when you can teleport your equipment magically it really helps moving things without having to squeeze them through the door.” Twilight said proudly. “But you’ve got a keen eye, all of this is going to help us today. If it’s not too much trouble can you stand in the center of the room for me?” Twilight asked, Milky looking around to find a spot that seemed cleared out specifically for her to be in. Walking forward she stopped and turned to look at Twilight. “Actually if you could face away from the door that would be great.”

“Like this?” Milky asked, adjusting herself to look at the back wall of the basement. She still didn’t really know what was going on here but since Twilight was clearly willing to pay and she’d already been made aware of why Milky was in town she figured it must have something to do with her special talent.

“Perfect.” Twilight said and pulled a lever, two thick cloth straps rising from the ground below Milky by strong chains that were retracted up through a mechanism.

“Whoa!” She said, feeling one of the cloth straps cradle her under her front legs and the other under her back, openings cut in them holding her in place securely and preventing her from moving as she was lifted off the ground. “Uhh... Twilight... Sparkle, was it? What are we doing again?”

“From what I hear you have a pretty remarkable special talent.” Twilight said, moving around below Milky faster than she could keep track of. “Producing that much milk and you’re not even a mother. Not only that, it has magical healing properties.”

“Uh... how did you know that?” Milky Way asked, curious how this mare she had just met knew that much about her.

“Fluttershy told me. After I spoke with Rarity and found out you went to Fluttershy’s first I talked with her, and then made a stop at Pinkie Pie’s place. You made quite a lot for all three of them. Do you feel like you can make more milk today?”

“Yeah... I do. Is that what we’re doing?” Milky asked hesitantly, trying to get comfortable in this position as she hung off the floor.

“Fascinating, four days later and still able to go. Is it all magic induced from the cutie mark or is there something else to it?” There was the sound of things rolling around beneath her and Milky felt a familiar surface against her teats. “I’m going to use a milking machine I borrowed to take a sample, is that okay?”

“Oh, that’s fine. Actually I’m used to using a machine like the one I have at home.” Milky said, despite this situation being very unusual it was nice to have something normal for a change.

“Great, we’ll get started then.” Attaching the suction cups to her teats, Twilight Sparkle started the machine and let it go to work against her. Milky let her body relax and just accepted the relief as she was pumped of her milk. It was a little weird having an audience but compared to everything else that had gone on lately this was hardly the strangest. As she was hanging around Milky Way took in the sights and began stretching her legs out to get more comfortable.

“So... you’re friends with a dragon?” Milky asked, looking to do something to fill up the silence.

“Spike. Yeah, we’ve known each other since we were little. Honestly, I can’t imagine life without him around.”

“He lives with you? I had no idea. I feel like every pony I meet here has something very special or unique about them. Rarity is a seamstress, Pinkie lives above a bakery and is a cook, Fluttershy had that adorable house that lets her animal friends come and go.  And you live in this amazing library with a dragon.”

“I wouldn’t say we’re that special. All those things you listed are just part of what we do for our daily lives. Besides, you’re pretty special yourself you know? I’ve never seen a pony with a talent like yours before.”

“If you did I bet she’d stick out.” Milky said, feeling her teats jiggle a little as she swayed in the harness.

“It’s not just your body, your magic is something else. Milk that heals ponies is incredible. There has to be some kind of special magic to it I haven’t seen before but I’m not sure what. Clearly it’s increasing the recovery rate of the pony themselves but if that’s the case, how does it do it? Do you yourself have any special healing properties? Have you ever recovered from an injury at greater speed than normal? Do you notice differences in your metabolism that you can’t explain? Are you-”

“Overflowing! I’m overflowing!” Milky Way called out, feeling the milk back up against her nipples where the machine was sucking. Noticing this as well Twilight Sparkle turned the device off and removed the suction cups from her, pushing the machine back where it had been. “Phew... that’s better.”

“Hmm, they’re still fairly swollen.” Twilight commented, applying a little pressure with her magic and pulling at her nipple with her powers.

“Oooh! That... feels different.” Milky said, milk dripping from her nipple where Twilight pulled.

“Wow, to think you filled up the tank and you still have this much.” Twilight said in fascination.

“Yeah... I don’t really know why but it seems like I’ve been producing a lot more than normal lately.” Milky admitted, feeling embarrassed another mare was looking at her body this closely. Again. On top of that you’d think she’d be used to it by now but when a mouth clasped around her nipple she still shivered in surprise. “Whoa!”

“Mmm.” Twilight mumbled, sucking at her breast and getting a mouthful of milk. “Well... that’s more tasty than I would have expected. I imagine it’s the same on the other side but just to be sure.” Her head shifted to Milky’s other teat, tongue pressing against her skin as her mouth sucked at her and nipple just as vigorously. To her credit Milky Way endured the sucking but was happy Twilight Sparkle couldn’t see the rose colored blush on her cheeks. “Mm! Delicious. Pinkie Pie knew what she was talking about.”

“I was hoping she might have left my name out of the mix when she talked about using it for that purpose.” Milky said not wanting it to get around too much that there were ponies drinking from her.

“We may as well not waste a drop, I’ll collect a few more samples.” Twilight said, moving under her and using vials to collect samples of milk as her magic squeezed her teats towards each one. The feeling of the magical grip wasn’t unpleasant but Milky found herself missing the feeling of hooves on her teats. After what the other girls conditioned her to this was almost too sterile.

“If you don’t mind me asking, what will you be using this all for?”

“Since your special talent is making milk that can heal I want to see what other properties it has. If I can isolate the cause and amplify it there might be a wide range of benefits for ponies because of you.”

“A wide range of benefits... because of me?” Milky Way said, feeling a sense of pride at that thought. Sure she’d done some good in the past using her milk to help others but knowing that it could be done on a much wider scale, well that was something special. While daydreaming Milky didn’t notice Twilight climbing the stairs behind her, taking a position on one of the higher steps.

“Can you try drinking this?” Twilight asked as a cup was floated to Milky’s lips by magic.

“Sure, if you want.” Milky said, taking the mixture happily down her throat. “Hmm... that was kind of an odd tea. I think it could use some honey or maybe some sug... sug... sugar cubes and crackers what’s happening?” Milky asked, feeling the pressure between her legs start to increase. “I’m... feeling really... pent up.”

“It’ll go better if you don’t fight it.” Twilight said, Milky looking over at Twilight Sparkle to see she’d put on protective goggles. “And don’t worry about making a mess, I installed a special drain just for this.”

“Just... for.... unngh!” Milky moaned, feeling the pressure building beyond what she could take any further. Her teats releasing milk at a much faster rate than she’d ever experienced before. Even with the help of a machine. “It’s... really a lot!” She moaned, finding an odd satisfaction in letting so much go at once.

“Wow, I didn’t expect THAT much to still be in you.” Twilight said, looking at the ground beneath her. It was true that there was a pretty large puddle where Milky had let out so much of her special liquid, white in color and smooth in appearance as it slowly drained out and collected below them.  Milky Way gasped for air feeling her body finally start to calm down and no longer forcefully push any more out.

“I’m spent.” Milky Way sighed, suddenly glad she was on these straps to keep her above the mess she’d made.

“Okay, next test. Drink this one please!” Twilight said cheerfully, another cup coming up to Milky’s lips.

“Um... I don’t really have anything more to give.” Milky said, feeling out of breath.

“Oh don’t worry, this doesn’t cause that effect.” Twilight assured her and Milky Way wanted to trust that was the case. Opening her mouth she took the next liquid in, drinking it down. “Oh, almost forgot! Silly me, this test would be wasted otherwise.” She said, Milky feeling something stick to the underside of her teats.

“What was that?”

“Just some seals to put over you while the next experiment starts.” Twilight said cheerfully, Milky about to ask what that could be but feeling an odd sensation in her body. It was like she was filled with a determination of sorts but she couldn’t place what it was she was determined to do.  Just that she wanted and needed to do it. That was when she felt the swelling.

“Hey... I’m... feeling heavy.” Milky said, letting her head hang down and watching her teats slowly swell up. “Whats... happening?”

“That was another mixture that’s designed to help charge up your cutie mark.” Twilight explained, now walking down the stairs to stand under Milky and look over her growth. “Since your talent is directly related to your body, I wanted to see if the two would correlate if I gave you a little magical push in that direction.”

“Twilight... I’m feeling... really warm.” Milky said through hot breaths, her teats continuing to grow beneath her as they filled with milk. Twilight took a few steps back, eyes widening as she saw how big they were getting.

“Umm... heh, I kinda mixed in a little bit of hormonal acceleration too. Just in case we needed to move things along a little faster if it took a while.” She admitted. Though Milky wasn’t listening anymore, her breasts stretching and growing even larger than they had ever been in the past. At her most pent up her breasts were overly sensitive but this made them nearly unbearable. Even the feeling of them rubbing against each other as she swayed in the harnesses caused her to moan. “Soooo... how do you feel?”

“Heavy.” Milky moaned out. “Pent up... hot... sensitive.”

“Sensitive?” Twilight asked, lightly stroking a hoof down the side of Milky’s engorged teats and listening to the milk mare moan from the touch. “Wow, I barely laid a hoof on them.”

“Twilight... this is... too much.” Milky groaned.

“Yeah, I’d say the test is a success on how it ties to your cutie mark. But uh... we better not try that ‘rapid release’ potion again. I’m a little worried what that might do.” Twilight admitted. “Guess it’s up to the old fashioned way.” Leaning her head down underneath them Twilight used her lips and gently peeled off the seal she’d placed on one of her nipples. Milky letting out a deep moan feeling that restraint taken away and milk leaking from her right away.

“That’s soooo much better.” She admitted. “Other one... please.”

“Sure thing, I’ll just... get down here.” Twilight said, twisting her head around to get another grip and pulling the seal away again. Milky panting as she felt herself naturally giving into the pressure and leaking onto the ground in two, slow continuous streams. “Well that looks like it’s already starting to help.”

“Please... milk me more?” Milky Way asked.

“Excuse me?” Twilight said, looking up at the mare whose cheeks were blushing red.

“I need help getting it all out... please?”

“Well… I suppose it is my fault you’re like this to begin with.” Backing up and using her magic Twilight caused two bands of telekinetic force to pull down at her teats, spilling milk onto the floor that much faster and making Milky moan with relief.

“That’s good! That’s so much better!” Milky yelled out, finding the magical touch stranger than a physical one but still enjoying it compared to nothing. As Twilight watched her work on the pony hanging above her she got an idea.

“Judging by your physical reactions it seems there’s more of a pleasurable stimulation going on than just a release of pressure. Maybe further rewarding that kind of stimulation will make the results happen faster?  Guess there’s no harm in testing while you’re here.”

“Reward.. stimu... whatever?” Milky mumbled, in a bit of a stupor while she got the milking of her life and didn’t really follow a thing Twilight Sparkle had said. Though her voice came back when she felt a pressure entering her from behind. “Wha-what’s that!?”

“Oh, is it not that pleasurable?” I kind of shaped it after my horn.” Twilight said, looking at Milky’s back side as she used her magic to make a telekinetic force slip into her pussy while she milked her. Milky’s head jerked up and her legs shook as she felt it pressing inside. “I’ve only tried this on myself a few times, it’s embarrassing to say. Maybe if I make it a little wider and move it around?”

“Uuugh... it’s... really deep!” Milky moaned, her body rocking back and forth from the insertion of Twilight’s magical sex toy inside of her while she was milked down below with generous strokes. She could feel her excitement run all the way down her back legs and even onto her large teats. “How does this... keep happening?”

“Wow, you’re actually flowing a lot more now.” Twilight said happily, watching the results as the milk drained out of her onto the floor and the size of her teats began to return to normal. “I guess there’s a sexual stimulation involved with milking? I wonder if it feels that good for all ponies?”

“Guhh! Nnnghh! Oh... I’m... getting...”

“Does it feel that good?  You don’t have to feel shy and hold back.” Twilight asked, licking her lips as she watched the pretty mare building up to her climax. “Well, I guess I’ll never get to have another chance like this, huh?” Walking forward Twilight Sparkle wrapped her lips around one of Milky’s teats and drank from it while her magical “horn” worked into her faster. The mixture of milk and her excited juices coating her nipples. It was all too much for the milk mare as she let out a cry of pleasure, excitement squirting out not just from her teats but from her pussy as well. Her legs outstretched both directions before hanging down along with her head, panting hard.

“That was insane.” Milky muttered, looking beneath herself to see her teats had shrunk down to a normal size with that last big push and Twilight Sparkle was beneath her. Mane and face covered in Milky’s wet orgasm while wearing a big grin.

“Good thing I kept on these goggles.” Twilight said cheerfully. “Okay, I think that’s enough testing. Why don’t I help you down and we can get you cleaned up. I could use a bath myself.”

“I sure have seen a lot of bath tubs on this trip.” Milky muttered.

“Come again?”

“I’d rather not, my legs can’t take it.”

“Oh? Oh! Uh... well, never mind all that. How about I teleport us upstairs instead of climbing the steps?” Milky nodded, not even able to stay on her feet after all of those “tests” she’d been put through. A purple flash later and she was once again bathing in warm water, washing out a number of different things that had coated her fur and mane. Like clockwork afterwards her client had a towel and a cup of tea waiting for her as they sat at her table.

“So, did you get what you wanted?” Milky Way asked, never really sure why exactly Twilight had been so interested in her to begin with other than knowing the source of her Milk’s abilities.

“And then some!” Twilight said happily, sipping her own tea. “There were some surprises along the way, but with how much I’ve collected I’m sure I can turn it into a potion of some sort to help heal injured and sick ponies of all kinds.”

“That’s a relief.” Milky Way said. “Before I was just selling my milk because... well... I knew there were ponies out there that preferred mare’s milk over cows. But knowing it can do more than just make people happy is great to hear.”

“Not only that, I learned how a cutie mark can directly affect the physical body of a pony. Your body must be built specifically to accommodate your talent. Not just any mare could have handled having teats that big or releasing that much milk at once. Plus three days prior’s worth.”

“Well I’ve always been built sturdy.” Milky Way said, not sure how to take that compliment.

“I also learned about how your body relates sexual stimulation along with your talent. I’m guessing you’ve probably combined milking along with enjoying yourself on more than one occasion for you to have that strong of ties between them.”

“Uh... yeah. If we could keep that part between us I’d be really grateful.” Milky said, not really wanting it to get out that having her teats played with got her off that hard. Ponies usually only ever had their tails to hide embarrassing things when it came to sex and with what else was between her legs it was even harder for her to keep those things private.

“Oh sure, of course! Now considering just how much milk you gave me I thought it was only fair to be sure I compensated you accurately based on what my friends paid.” Twilight said, dropping a big sack of bits on the table that she had floated from her upstairs bedroom with her magic. Milky’s jaw almost hitting the table as hard as the money had.

“That’s enough to fix my milk pump completely!”

“Oh really? I didn’t know that’s why you were collecting these funds. I’m glad I could help you.” Twilight said cheerfully. “Had I known you were in trouble like that I’d have lent you the money if you really needed it.”

“Oh... that’s really kind of you. But I’d rather earn it than just take it, you know?” Milky Way admitted. “Plus you just met me, it would be a little awkward giving some pony you barely know a loan.”

“My friends all speak highly of you and I learned a long time ago to trust their judgment when it came to other ponies. But you know... if you want to get to know me better I don’t mind you staying a little longer.”

“So long as the tea isn’t enchanted this time, I’d like that too.” Milky said, the two sharing a laugh together as they chatted into the night. Learning more and more about one another as the hours passed and Milky Way getting a few book recommendations while she was there. When Spike finally returned the three shared a nice meal and they escorted their new friend back to her hotel room. With her bits finally secured Milky was able to see her goal to the end. As of tomorrow she could head back to Trottingham and settle back into her day to day routine.

Pulling the sheets up in her bed she let out a big yawn and settled into her pillow. “Only one more day and I’m back home. It’s sure been a wild adventure.” Milky thought out loud. “A lot of really unexpected things happened but... maybe it wasn’t all bad. In fact I’m going to miss those girls.”  With happy thoughts of time spent with new friends Milky faded off into her dreams to await the next morning.