[Contains Breast Expansion, Lactation, Weight Gain, Butt Expansion, and Sexual Content]

As Emerald entered the empty dorm room, she had to admit, it certainly didn't seem like a 'milking room'. Of course, her expectations were being subverted a lot lately, like when she found out that Yang of all people was into something weird like this. Emerald wasn't really in much of a position to be calling Yang's kinks weird though, considering she took Yang up on the offer to use the milking room, and even the formula Yang used to lactate. All Emerald had to do was find it, and she would be able to enjoy it for herself. It wasn't hard to find, it was just sitting on a desk in the corner of the room, the vials of the neon pink liquid just out in the open. However, Emerald also found a box that Yang mentioned that had a few vials that Emerald wasn't meant to use. These vials were also mostly pink, but there were occasional clouds of orange in there. Emerald didn't know what that meant, but she had an idea.

"Guess she just wants me to use the boring normal stuff and keep the good stuff to herself," Emerald thought out loud. "Eh, she's not gonna miss one little vial." With that, she popped the seal on it and drank the pink and orange liquid. As Emerald downed the formula, the liquid tasted strange on her tongue, sometimes bitter, sometimes sweet. At the very least, it was decent enough for Emerald to swallow it down.

"Okay, that was weird, but…"

Before Emerald could continue her comment, her vision flashed white as a bolt of pleasure struck. Emerald let out a shaky gasp as her legs went weak. She reached for the bed to lean on, just in time for another flash, less bright, less blinding, but the bolt of pleasure that followed felt just as good..

"Oh gods, th-this is the good stuff," Emerald moaned as she dropped to her knees, before carefully lowering herself down onto her back. "N-no wonder they wanted it all to themselves."

Emerald's whole body was humming with sexual energy, and it was powerful enough for her to notice when the energy started to build up between her chest and her rear. Emerald let out a moan as the energy spiked in her chest and her breasts began to grow. Each second saw her breasts grow larger and larger. She could feel her bra and top growing tighter and tighter. The smart part of her brain was telling her to get her clothes off, but the horny part of her brain wanted to see what would happen. At the very least, she decided to unzip her jacket, leaving it open as she grew. Sure enough, she felt her bra and shirt squeezing her growing breasts. Her back arched as the pleasure and pressure built. She could hear the seams giving out all over, but it still just felt so good. As she edged closer and closer to another orgasm, the tearing grew louder and louder. Finally, as if on cue, she came once again, right as the seams finally totally gave out. Firstly, her bra gave out as her breasts surged forwards. Without her bra to contain them, her breasts began stretching her shirt to its limits. Despite the splitting seams at her sides, her shirt still did not have enough give to handle her growing breasts.

It started with a small hole in her shirt, just enough to give a tiny peek at Emerald's increasing cleavage. Second by second, the whole grew larger and larger, revealing more and more. Then, in one sudden moment, when all that was left to tear through was the collar and the hem, her shirt exploded off of her chest. This left just her arms in their sleeves and the bit across her back, making her shirt more like a jacket or cardigan with an open front, except without any way to actually close it. Her breasts, free and fully revealed, bounced slightly on her chest before settling down. The sudden release set off an orgasmic after shock, as she shuddered out another mini-orgasm.

"Oof, so heavy, but so good," Emerald murmured as she gingerly reached up and bounced her breasts a little bit. She kept watching as they kept growing, up until they each were about the size of basketballs, although they would have needed some serious support to match the firmness and roundness of basketballs, as they drooped far too much while unsupported to look like that on their own. That was when the weight of them suddenly seemed to increase. They were filling up, Emerald could feel it happening by the second. She reached up and brought a breast down to her mouth, her lips latching onto the large, dark peak. She began to suckle on it, and she was surprised by just how sweet the milk that came out was. When she thought about it, it tasted awfully similar to the sweetness of the formula. She didn't have much more time to think about that, however, as while she was suckling on one of her breasts, she could feel the other one filling up. She could even watch as a white bead of milk began to appear on her other breast, contrasting with her dark skin and darker nipple. Knowing what would happen if she left it alone any longer, Emerald quickly switched breasts, drinking deeply from her full breast. Unfortunately, as she drank from that breast, she could feel her other one filling up. It was like bailing out a sinking ship, no matter how much she drank, she knew that she wasn't going to be able to keep up with how much she was lactating. Still, she did her best, switching from breast to breast to drink as fast as she could and avoid making a mess of herself.

Eventually, the inevitable happened. While she was drinking from her breasts, she just couldn't keep up, and she felt one of them begin to leak. While the release of pressure was a relief, she didn't want to make a mess. She quickly switched breasts, cleaning up the little trickle and suckling on the firm nub. She had only started to drink for just a few seconds when her other breast began to leak. She tried to clean up that trickle and drink up from the leaking nipple, but then the other breast began to leak. She tried switching back again and drinking faster, but she just couldn't keep up, and eventually she just had to leave her breasts to leak, drinking as much as she could before she swapped. As she did that, however, the leaking got worse and worse as she produced more and more milk. The trickle turned into a constant stream and began to pour all over her body. Once they were full of milk, Emerald's breasts began to take on a slightly firmer, more rounded appearance, though they were still at the end of a long teardrop shape.

Then, she felt herself getting full. Her belly felt heavy, laden with milk, but Emerald couldn't stop herself from drinking. The milk just tasted too good for her to stop. However, despite feeling full and despite continuing to drink, she never felt like she was going beyond starting to feel full. Not needing to worry about that, she kept drinking. As she kept drinking, she started to feel her shorts growing tighter. It started with the button popping open and her fly undoing itself. Then, the seams began to split at the sides and her rear. Emerald's mind was a million miles away as she savoured milking herself, ignoring how she was growing. Her belly was gaining a layer of pudge, her rear grew plump, and her thighs grew thicker, second by second. Eventually, her shorts blew open, first by splitting down her rear, then by utterly ruining the sides. Emerald's panties didn't last much longer, as she blew out the sides. Emerald was just aware enough of what was happening to reach down with a hand and pull all of it down, escaping her ruined shorts and underwear. As her hand returned, intending to cradle her expanded bosom, it hesitated. Slowly, it glided across her pudgy belly and down between her chunky barely spent a second there before her fingers dove into her core, lust taking over. Her fingers went to work, fingering her sensitive core. As that happened, she continued to suckle from her leaking breasts, although now she was letting out muffled moans as she drank. And so, Emerald kept at it, her fingers massaging her inner walls, hitting her extra sensitive spots, as she drank from her extra sensitive breasts, her other hand massaging her massive mammaries. With all that stimulation, it was hardly a surprise that Emerald came quickly. She let out long, whining moans, muffled by her breasts, as she came, and came and came again. Her mind was in no state to be keeping track of how many times she came, but it was a lot. Her fingers just kept working and her mouth kept drinking and her core kept pulsing with pleasure. After a few minutes of coming, Emerald was exhausted. She slipped her fingers out of her sensitive core, unlatched her mouth from her breasts, and flopped flat on her back, panting as her head was swimming with pleasure. Her breasts kept leaking, but the leaks slowed to a trickle, before ceasing all together. Her breasts even ended up a little bit smaller than they had been at their maximum, but they were still significantly larger than before. Once Emerald stopped supporting them, they began to sag, gravity taking full effect on the still-heavy mammaries.

After waiting a little while for her mind and body to recover, she eventually sat up.

"Ugh, they're so heavy," Emerald complained as she cradled her bosom. "And so damn big too. Sure hope they go back to normal soon," she added as she tried to tug her destroyed shirt across breasts that were still far too big to be covered by something so small. She picked up a scent that she sniffed to try to identify. "Ah, crap, that's a hell of a smell. I better go clean up."

With that, Emerald got up onto her feet, staggering and swaying as she tried to adjust to her extra heavy chest. Her thighs constantly rubbing together was also distracting, but that was manageable. Once in the bathroom. She ditched what was left of her top and stepped into the shower. The warm water washed off the soaked-in milk, along with some of the scent. It was the best Emerald could hope for, considering that the room itself smelled at least a little bit like the sweet milk, and also considering the lack of soap or shampoo or the like in there. When that was done, Emerald stepped out of the shower and caught sight of herself in the mirror. If not for her distinctive mint-green hair and dark red eyes, she might not have recognised who was looking back at her. Her breasts were the biggest in Beacon by a long shot, even counting the exchange students and teachers, and her belly, rear, and thighs had a thick layer of fat on them. Her belly was chubby enough for her belly to block her view of her feet, although it was flat enough to avoid gaining any rolls. Her hips and rear were wide enough that, even with her wider belly, Emerald still had a very pear-shaped figure. Emerald's first reaction was obviously surprise, but once that wore off, a smile came to her lips.

"I look good," she purred as she turned and twisted her body to get different views of herself in the mirror. "I look damn good." She gave herself a quick spank on the booty and watched as her plush posterior wobbled. "I bet Blondie would love this," she thought out loud, before a realisation came to her. "I'll probably need her to bring me some spare clothes. I really managed to ruin everything I wore here. I guess I can pay her in nudes."

With that, Emerald ducked out to retrieve her Scroll from her discarded jacket, before coming back into the bathroom for a mirror selfie.

Emerald: Hey, Blondie, can you bring me some spare clothes, I had a little growth spurt 3

Attached to that message was Emerald's picture. The hand that wasn't holding her Scroll was flashing a peace sign while her arm covered her nipples. While she wasn't covering much of her expanded bosom, her pose did prop her breasts up a little bit, making them appear perkier and a little larger than they would have been otherwise. She'd also angled her hips out to emphasise her impressive rear and her new belly, not that her massive, almost shelf-like rear needed much help to steal the show.

Once that message was sent, she went back out into the main dorm room and sat on a bed, waiting for Yang's response. Quickly, she saw that Yang had gotten and read her message, but didn't respond immediately. After a moment, however, she got her reply.

Yang: Akskskdkfjansnf

Yang: Jeez, warn me before you send stuff like that

Yang: What happened 2 u? You look good, but wha?

Emerald: I'll explain when you bring me some clothes

Yang: Yeah, yeah, dont worry, be there soon, my clothes are pretty stretchy, so they should fit ya

Yang: Did you touch the expired formula?

Emerald: Uh, maybe?

Yang: Cmon that was the stuff i told you not to touch coz it went bad

Yang: Guess we know what it does now

Yang was right, and Emerald should have listened. Although, Emerald did like the body it gave her. Her booty and thighs would look amazing in the right pair of shorts, and the belly gave some nice love handles to hold onto. Of course, the best part was, undoubtedly, her incredible breasts. No one would be able to keep their eyes off them, and Emerald was going to enjoy that. Unfortunately, not all was well, as she saw tiny white beads slowly beginning to appear on her dark peaks.

"Ah, crap. Guess that's not going away any time soon," Emerald grumbled, before lifting her breasts up for another drink.

[AN: This fic was written for an anonymous watcher over on DeviantArt. I'll be honest, I hadn't expected to come back to Yang Provides, but someone asked very nicely. They also had a lot of very interesting ideas about where to take any further parts, including later parts that they'd like to see written.

Long story short, this is now an AU where Salem and the other main baddies aren't a big deal, Cinder and her team are the Haven students that they were pretending to be in Volumes 2 and 3, and the Battle of Beacon won't be happening. Spoilers, but that last point will be relevant, since there will be stuff set in the future, well ahead of where the show's at now. So yeah.]