Fluttershy's Liquid Love

“Finally...”

An exhausted Starlight Glimmer walked out of the library in Friendship Castle, grinning triumphantly from getting done with the frankly absurd amount of work Twilight had placed on her that day. She stood there for a minute or so, reveling in the freedom and lack of stress, before she began walking to her private quarters.

“That was way too much work for one day,” The unicorn thought to herself while she yawned from mental exhaustion. “And she couldn’t even help me with any of it... So much for that ‘best teacher’ status...” She scoffed lightly at the thought, “Especially given what she went off to do... What’d she say, some sort of ‘personal thing’? Doesn’t she trust me enough to tell me at least something about that?”

She sighed heavily to herself while she continued walking, a little slower now as she became immersed in her thoughts. “Whatever, at least I’m done for the week. Now I can finally read that romance book I’ve been meaning to...” She chuckled as her smile returned. It only lasted a moment though, a sudden sound breaking her from her stupor.

The periwinkle pony stopped on the spot and glanced to the side at a door where the sound seemed to have come from. She next quietly trotted over to the door while listening for any noise coming from beyond it. She finally reached the door and placed an ear against it, listening for something on the other side, and eventually heard it. A moan. Not really a lewd moan, moreso just a pleasant one, but it was definitely a moan. She supposed that made sense, given how she was pretty sure this was Twilight’s private quarters, but the voice coming from it didn’t seem like hers, which seemed odd for the rather awkward alicorn.

Starilight’s curiosity eventually got the better of her and she slowly opened the door, knowing that her mentor probably wouldn’t like it if she invaded other’s privacy, but she still resolved herself to check it out. The moan came again, this one being legitimately discernable as high-pitched and perhaps a touch lewd. Her interest was now entirely piqued, so she slowly peeked her head around the door to find something she certainly did not expect: Twilight Sparkle grabbing hold of Fluttershy’s teats with her hoofs and pressing her muzzle into one of them.

The pink-coated mare gasped at the display, not really out of how intimate it was, but moreso out of the fact that Fluttershy was involved. The fact that such a timid and reserved mare was involved in something so sensual seemed impossible, yet here she was, letting another pony suck on her completely exposed breasts and... hm. That was it. They were not doing anything more than that, even though Starlight had been there for more than thirty seconds. The lilac and primrose mares seemed entirely content in their current situation.

But then she noticed something odd about Twilight; her barrel was slightly bulging. She didn’t think the bookish pony ate enough to give her any sort of pudge, so she wondered why it was there. She realized she didn’t have that belly yesterday, so she assumed it had something to do with the position she was in with her friend currently, but couldn’t think of anything. After all, the only thing that would ever come from teats is milk...

Milk.

She gasped at the revelation, this time loud enough to alert the other mares to her presence and making the yellow one shriek as she tried to cover her huge breasts, but really only succeeded is pressing her friend harder into them.

“S-Starlight!” Fluttershy shouted, blushing heavily from the unexpected visitor while her friend continued to nurse from her mammaries, seemingly unphased by the intruder.

Starlight, though, didn’t respond as she fully revealed herself, still staring at the sight. She shivered lightly from arousal while some of her juices began to flow down the inside of her hind legs.

“S-Starlight?” The yellow-coated pegasus repeated, now confused as to the other pony’s behaviour.

The periwinkle unicorn blinked twice before looking Fluttershy in the face. “I-is that milk?” She asked quietly while pointing at the nursing pony’s belly.

“O-oh, umm...” The shy pegasus hesitated, somewhat confused by the question. “Y-yes...”

A few awkward seconds passed before Starlight asked hesitantly, “Can... can I have some?”

There was then a pregnant pause as the mares stared at each other, rather embarrassed with the question, before Twilight popped the nipple she was sucking out of her mouth and snapped out of her milk-induced reverie.

“Oof, my belly is so big now, Fluttershy,” She commented while rubbing her pudge and looked up to her friend, who remained looking away from her. “Fluttershy?” She said, then traced her line of sight to see Starlight standing there, only glancing towards her before resuming her staring at the other pony.

The purple-maned unicorn took a step forward, paused a moment for any objections, but continued moving as none came. She eventually reached the space beside Twilight and in front of Fluttershy, then put her muzzle level with the busty mare’s teats. The other ponies stared at her while she slowly leaned her head towards one of the large breasts and opened her mouth, next putting her mouth around the nipple and starting to suckle on it.

Milk started coming almost instantly from the mammary, making its owner moan from the light pleasure and Starlight moan from its pleasant taste. The pink mare then put her hoofs on the teat in front of her, taking hold of it and squeezing lightly to pressure more of its content into her mouth. She basked in the taste of the milk, thankful for the gift in a manner devoid of any malcontent as she kept nursing.

She at one point took one of her hoofs off the breast and placed it on her belly to feel it slowly grow, now realizing why Twilight got such a pudge from this stuff; it was addictive as hell. The taste of the milk was lovely enough to always make her want more, but with how she was suckling on somepony’s nipple to get it made it impossible to stop. The soft coos from the big-breasted mare only urged her on further, making her take deeper, more forceful sucks as time went on to get more of that delicious, delicious milk into her belly.

The lack of air eventually got to her though, making her pop the nipple out of her mouth while it kept squirting, leaving it to spray a bit across her muzzle as she pulled away, crouching down slightly and panting heavily. She looked up to the other ponies, finding Twilight to be resting her head on her friend’s other teat like a pillow and looked to be asleep, while Fluttershy was looking at her with a calm, gentle smile with a little concern from how hard she was panting now.

“Are you alright, Starlight?” The pink-maned pegasus asked quietly.

Starlight kept panting for a few more seconds, finally managing to respond, “I’m alright... it’s just...” She inhaled deeply, “That milk was really good.”

“O-oh!” Fluttershy squeaked, blushing and rubbing the back of her head from the compliment. “T-thank you...” She said, then gasped quietly before smiling brightly as she held her forelegs out as if to ask for a hug. The other mare smiled softly in return and stood up on her hind legs, then moved into the hug one one side, careful to not press into Twilight’s sleeping head. The lavender-coated pony gasped as she was held tightly and lifted up, her distended barrel placed on Fluttershy’s shoulder, who then started to pat her back.

“H-hey!” Starlight blurted while her cheeks flushed bright red, “I’m not a foal!”

The patting didn’t stop though, and continued for several seconds while the unicorn squirmed until she felt something catch in her throat, then let out a loud belch. She blushed even heavier and kept silent after that, the other mare smiling contently while she forced a few more belches from the embarrassed pony’s throat before she finally pulled her back down and set her back on her lap.

“How was that?” Fluttershy asked, looking at the purple-maned unicorn with a kind smile on her face.

Starlight found herself hardly able to look at the other pony for several seconds before quietly responding, “Umm... t-that was nice...”

The normally shy pegasus’s smile brightened as she hugged the other mare, gleefully exclaiming, “Thank you, Starlight!” The hug made the unicorn more awkward and embarrassed, letting her get blindsided with Fluttershy’s next question; “Do you want to do that again later?”

Starlight sat in shock from the question for an indiscernible amount of time before quietly responding, “Yes, please.”