Milk Factory Yang

>"Well, this isn't as fun as I thought it would be. I can't even come up with any puns."
>Yang sighed.
>Everyone was out doing something.
>Weiss was ordering more Dust, Blake was out reading (and had also gotten much better at finding places where she couldn't be interrupted by lonely blondes), and Ruby was taking her sweet time cleaning her gun
>Probably all their guns, not that Yang minded being relieved of that chore
>Which mostly left Yang to chill in the team's dorm room, bored out of her mind.
>She could only stare at the ceiling for so long
>Sigh
>Rolling over onto her side, she noticed a book lying on her precious little sister's bed
>"Man, Ruby has had her nose in that book a lot lately..."
>Yang smiled at that, remembering the last time she saw Ruby so engrossed in a book was when she bought her a collection of stories about heroic hunters and huntresses
>After the tackle hugging and "I love you, Yang!"s of course
>Might as well check it out, she thought.
>"After all, Blake-y seems to think I need to read more."
>"'You really should consider expanding your vocabulary, Yang.'"
>"Lousy romances novels. My dirty talk is perfectly fine! And punny!"
>Grumbling about bookworms and their high expectations Yang made her way across the room
>Taking care to avoid messing up Weiss' bed, she stood on the edge and reached for the book.
>"Let's see what we got here..."
>"Something something aura effects blah blah. Leave it to Weiss to turn my precious baby sister into a complete nerd."
>She was already most of the way there. If it wasn't for Yang's shining influence, she would have reached that point a long time ago.
>"Well, hello there."
>Yang had noticed that the cover of the book had a picture of what appeared to be a mostly naked woman.
>"Not sure about the number of arms and legs, but..."
>Huh. She seemed familiar.
>Was that Professor Goodwitch?
>If it was, she was quite the looker.
>"Note to self: Never tell Kitten that Goodwitch was hot. Or that I thought she was hot."
>"Or that I was rather bewitched by a picture of her naked. Heheheheh. Be-WITCHED."
>She was feeling better already.
>Oh. Her dear sweet puns. How she missed them.
>"Alright, let's crack this baby open! Ugh. This foreword is so boring. No one actually reads these, right?"
>She glanced around, making sure Blake hadn't somehow ninja'd her way in.
>That would probably lead to an argument. Or worse.
>She looked back at the book again, and decided that there were better places to read than standing up like this. She moved over to Blake's bed, took a seat, and flipped to a random page
>She tended to get lucky with random page flipping.
>"So let's see what's in here..."
>"It is rather well known that Aura is life force, an energy produced by all beings with souls. Its uses in extending the life of the user are well known, mostly through protection and various offensive applications. However, it's impact on giving life to others should  be noted as well. For example, the conversion of aura into nourishment for others, such as through breast milk..."
>"Huh. That sounds silly."
>It's at this point that Yang noticed the book mark on the following page.
>"Ruby's into milk? That's rather amoosing. Not really surprised though..."
>As she flipped the page, she came to the place where Ruby had stopped
>She laughed.
>"Oh. Come on, there's no way Ruby actually buys into this stuff, right?"
>The page contained detail instructions on how to convert aura to breast milk
>Yang glanced downwards at, in her opinion, rather impressive chest
>"Well, I got nothing better to do. And besides, it's kind of the whole reason I have you two lovely ladies, right?"
>"So, now I'm supposed to direct my aura to my chest somehow? Well, whatever you say, strange magic book."
>Laying her hands on her chest, Yang focused, trying direct her aura to her twin suns.
>And nothing.
>"Ha. Knew this whole thing was fake as... Huh?"
>It was ever so slight, but she felt like there was a bit of a change as she allowed her breasts to return to their resting position
>It felt a bit heavier?
>"Well, I guess I could keep doing it..."
>She repeated the process, longer this time.
>She could feel it now. Her shirt gradually tightening as her breasts became fuller and heavier.
>"Mmm. That feels... Pretty good."
>She decided to glance downwards. And judge the results for herself.
>Her hands were moving outward, slowly but surely
>Almost like she was breathing, just without the going back part
>They felt different to the touch as well. Feeling more and more taut.
>As if they were filling
>And swelling.
 >Yang could see the fabric of her top shifting as the cloth started to become more and more strained to contain her chest
>The bottom of the shirt was slowly raising, leaving more and more of her abdomen exposed.
>"Well, if they weren't Sunny Ds before, they are now."
>Yang gave her newly swollen bosoms some gentle rubbing
>"I think I'm starting to see why people are into moms."
>"Guess I'll have to talk to Blake about that later..."
>"Oh. Shoot! There is no way I am going to fit into my normal stuff now."
>*Knock knock*
>"Uh oh."
>"Yang! I'm back!"
>"Uh oh."
>Ruby cheerfully strolled into the dorm, happy to see her favorite big sister in the whole wide world.
>"Huh. Yang. You look different."
>"Do I?"
>"Did you do something with your hair?"
>"No, Ruby."
>"Oh, okay."
>As Ruby walked further into the room, she noticed a rather familiar book on her sister's partner's bed.
>"Yaaaaang. I told you not to go through my stuff!"
>"I'm your sister. I'm pretty much required by law to do it when bored."
>"You didn't move my bookmark did you?"
>"...That's what you're potentially mad about?"
>Ruby only pouted in return.
>"No, of course not."
>Ruby brightened up significantly at that, looking quite relieved.
>"So, why do you even have a book like that?"
>"I-I'm holding onto it for a friend. Yeah. I know that sounds like a convenient excuse but in this case it's true and..."
>"Uh huh."
>Yang crossed her arms under her chest, which only managed to make her engorged mammaries more prominent
>"...Because you know, she doesn't trust her teammates to not do something with it unsupervised and... Oh. Wow."
>Yang's twin suns seemed to have stopped her adorably awkward baby sister's rambling dead in its tracks
>'What?"
>"Y-you look really nice, Yang."
>"I know, right? It takes effort to look this good. Wait a minute."
>Ruby flushed red and suddenly became quite interested in the rather nice hardwood floor.
>Ooh. Mahogany.
>"... I guess you noticed that I did stuff with your book?"
>"Uh huh."
>"And now I'm full of nice tasty Yang milk?"
>"Th-that's what it looks like."
>"Ruby... It's okay. Do you think I'm going to be upset with you?"
>"Well, um..."
>"Sis, look at me."
>Okay..."
>Ruby raised her head to find her big sister smiling warmly.
>And two small damp areas forming on the yellow cloth of Yang's pajama top.
>"Oh. God."
>Ruby's face did a wonderful impression of her cloak and as she shifted her focus to the carpet in the center of the room
>It was a rather nice pattern
>"Ruby? What happened? Oh. I'm leaking. Probably should do something about that... You have any idea, Ruby?"
>Yang just noticed the dampness in her shirt. This was something she would have to deal with.
>"I'm starting to wish Weiss let that Nevermore get me..."
>Yang sighed.
>She walked up to her embarrassed leader and placed a hand on her shoulder.
>"Ruby, it's perfectly okay to like something like this, okay? I'm not going to make fun of you for it."
>She took a quick glance towards the door, making sure it was closed.
>"Here, look."
>Yang swiftly yanked off her pajama top, exposing her bountiful breasts.
>Ruby was amazed she wasn't blinded by looking at the two suns for as long as she did.
>"Like what you see?"
>"Y-yep."
>"Thought so."
>"G-got milk?"
>Yang laughed at that. This might make this easier.
>"You bet. Although it kind of makes it hard for me to get dressed. Besides, I can think of a far better place for it..."
>Yang gave Ruby a knowing poke in the tummy.
>"So, what do you say? I don't have to dair-ya do I?"
>Ruby groaned at that.
>"Please stop."
>"Hahaha. Sorry, dealing with a COW-ering little sister. Throws me off my game."
>Ruby was trying not to think about how hypnotic she found her sister's chest when she laughed.
>"Only trying to do what's breast for us, after all."
>"Yaaaang."
>"Sorry, I got a lot built-up."
>Ruby giggled.
>"Yeah, you do."
>"So, how about it, Ruby?"
>Ruby opened her mouth to respond, but then she noticed that tiny droplets were forming on Yang's nipples, standing out against the darkened areolae.
>She settled for nodding vigorously
>"So, how do you want to do this?"
>Ruby thought for a moment, putting her tactical mind to work figuring out the easiest solution.
>"Could you get on the bed, please?"
>"So, what are we going to do on the bed?"
>"... I'm going to lay on top of you and drink your milk and stuff."
>"So, you like being on top?"
>"Yaaaaaang."
>'Sorry. Sorry. I'm going. I'm going."
>Ruby concluded that the bouncing is going to be the death of her as Yang made herself comfortable.
>Ruby nervously took her position above her big sister's chest
>"Well, here we go. Enjoy, Ruby."
>"Y-yeah."
>Ruby brought her mouth to one of Yang's nipples, and began to suckle
>It started gently, but it the speed of her suckling increased rapidly
>Yang groan in pleasure, and here she thought putting it in felt good.
>She moved her hands from the resting behind her head, embracing her breastfeeding leader and pulling her closer to her bosom
>Ruby did not seem to notice, as she was too busy downing the sweet creamy liquid flowing from Yang's chest
>The life-giving milk seemed to fill her belly with warmth.
>She felt loved and happy.
>The warm smile Yang was giving her certainly helped.
>Yang was also clearing enjoying the sensation.
>Both the physical stimulation, and the feeling of being needed as the girl was nestled safely in her arms.
>This continued until one of Yang's breasts was drained, and Ruby had to come up for air.
>"This is nice, right?"
>"Y-yeah."
>Yang just smiled at her panting little sister.
>"Still thirsty? Because I'm pretty sure we're only half done."
>"Oh.... Right."
>"Not trying to milk this too hard, just letting you know."
>"I know."
>"So, up for Round 2?"
>The sudden suckling sensation satisfactorily answered Yang's question.
>Yang moaned once more, and embraced her thirsty baby sister again.
>Seems like Ruby had quite the appetite.
>And was quite determined to get every last drop of her sister's delicious milk.
>Not that Yang minded. It seemed like it was going to a good place.
>And it felt good. Really good.
>Ruby was also enjoying herself immensely, although that had more to do with being the one who was being fed.
>So good.
>She idly wondered if the reason she felt so warm inside was because it was made from Yang's aura. Was that how this stuff worked? She supposed it did not really matter, as long as it ended up in her anyway.
>And so this continued, until Ruby's suckling began to slow, signifying that Yang was completely milked.
>Ruby nuzzled against Yang's chest, enjoying the warm milky scent as Yang held her close.
>"See, that wasn't so bad, right?"
>"Mmhm."
>"You trying to talk to boobs, sis?"
>"Wha? Nn!"
>Ruby rolled over, putting her back to Yang's chest.
>"S-sorry...."
>Yang laughed.
>"No worries, sis."
>Yang's hands were conveniently located near her baby sister's tummy.
>"Well, what do we have here?"
>"Yaaaang."
>Oh, you have a cute little tummy! That's adorable!"
>Ruby's stomach was indeed rather full after milking her older sister dry.
>Ruby blushed as her sister began to rub her slightly swollen belly.
>"No, really. This is super cute, baby sister."
>"Th-thanks. I guess."
>"I should be thanking you. For you know, getting rid of all the milk."
>"No problem. Anything for you, Yang."
>The sisters laid there for several minutes, just enjoying each other's company.
>Until Yang broke the silence.
>"So...."
>"So, what?"
>"Anything else fun in that book of yours?"
>Ruby smiled.
>"You have no idea..."