AN: WARNING. If you do not approve of Lemons, Wincest, Pastries or Nastiness, DO NOT READ. Please note that this is my first attempt at a Lemon. I would also like to apologize beforehand if there are any spelling errors. My Bad. I hope you enjoy this story. Also, I don't own RWBY or any of the characters, RoosterTeeth does.

'Cupcakes, cupcakes, cupcakes.' They were the only thing on Ruby's mind as she was making her way to the kitchen. She didn't know where her incredible urge for cupcakes came from, all she knew was that she had to have some.

It was spring break and she and Yang had been home for only two days. Although she already missed being at Beacon, she loved being home even more. Especially since she got to hang out with her sister, who was absolutely funny, awesome, beautiful, sexy...

'Nope, nope nope nope, can't think like that. I cannot think like that.' She thought while knocking on her head.

'Just focus on cupcakes.' She then remembered seeing some in the kitchen yesterday, and made a beeline in that direction.

Stepping into the kitchen she froze at what he saw. Yang was standing at the counter, her golden hair cascading past her shoulder and down her back. She was wearing daisy dukes and a tank top that barely contained her supple DD cup breasts.

She held a cupcake in her hand and as she took a bite from the miniature cake, some of the icing slid from the top and landed squarely between her breasts. As she reached down to scoop it off with her finger, Ruby quickly crossed the room and grabbed her wrist and licked the icing from the valley of her great tits, in a long and slow drag of her tongue.

"Ruby!" She yelped in surprise.

Ruby's eyes widened in shock when she realized what she had done.

"Oh god Yang, I'm so sorry. I don't know what came over me. I- I saw the icing fall and I'm kinda craving cupcakes like you can't believe and I just lost control and had to have the icing on your awesome boobs and..." She clamped her hands over her mouth and drooped her head in shame.

Yang blinked at what happened and what she heard. Ruby, her little sister had just licked icing from in between her tits and said they were awesome. It was wrong, it was wrong on so many levels, and it was, it was... Hot.

'Oh god was it hot.' She thought lustfully. She had been horny all day and was looking for anything to soothe her crave for sex and to be touched.

Yang had always known about Ruby's more than "Sisterly Love" for her. But she usually just ignored it and hoped that Ruby would find someone else to be so engrossed with. But Yang was just so horny. She absolutely needed this, regardless of it being her sister.

'And it seems I've found a way to get what I want.' She thought.

Yang didn't care about it being Taboo; in fact, it turned her on the more she thought about having Ruby lick her again.

She groaned ever so slightly at the thought, but was pulled away from her dirty thoughts by Ruby speaking.

"I'm so sorry Yang." Ruby said sadly, her head still hanging down.

Yang decided to make her move.

'Its now or never.' She thought.

Yang grabbed Ruby's chin and lightly lifted her head, bringing them face to face. Ruby looked at her with sad and guilty eyes. Yang smiled, and before Ruby could say anything, she lowered her head and gingerly placed her lips on her sisters and starting kissing her.

Ruby went rigid and kept her lips still for only a few seconds before started kissing back. Yang moaned heavily into her sister's mouth as they kissed. It was so wrong, yet it felt so right. She wrapped her arms around Ruby and pulled her closer, deepening the kiss.

After two minutes of kissing she pulled away. Ruby looked up to her with half-lidded eyes and started to talk.

"Yang I..." But she was cut off by yang placing a finger on her lips.

"Shhh." She hushed.

Keeping her eyes locked with Ruby's, she grabbed a new cupcake from the counter and dragged the top of the cake down and across her neck; covering it with icing.

Instantly Ruby's eyes widened and faster than the eye could see, Ruby's mouth was on her; sucking and licking every inch covered in the icing. Yang found herself moaning in ecstasy from Ruby ravaging her neck. She grabbed a handful of her hair when she began nibbling at the tender skin. Her moans were escalating, and her pussy was growing wetter and hotter by the second.

Yang felt Ruby grip her ass and lift her up and onto the counter. She was surprised by the younger girls sudden burst of strength, but she forgot about it soon after she saw Ruby's eyes pleading for more.

So she grabbed the tank top and ripped it in half, revealing rock hard nipples. She grabbed two more cupcakes and mashed them together on her chest, lathering the mashed cakes all over her tits.

When Ruby saw the sight of her older sisters big round tits, covered in cupcake, before her, she could barely move. She stared in awe and her jaw hung loosely.

Yang giggled at her little sister before putting on a seductive smile and spoke.

"Well come on, don't you want a taste?" She asked lustfully.

Ruby didn't speak as she took hold of the soft mounds and dragged her tongue everywhere she could. She sucked and bit on her sister's hardened nipples, causing her to scream in pleasure. Yang had never seen Ruby so, "Animalistic", before. She ran her icing and cupcakes covered hands through Ruby's hair and over her shoulders, where she held for support.

"Fuck." She whimpered lustfully when she saw Ruby's messy face. She cupped her face and brought their lips together in a fiery kiss. She felt Ruby licking at her lips, seeking entrance to her mouth. She obliged and their tongues danced together heatedly. Yang moaned into her mouth and felt her eyes roll into the back of her head when she grabbed her tongue between her teeth and sucked on it.

As they kissed, Yang grabbed the hem of Ruby's shirt and started pulling at it. Her sister got the message and pulled away for only a second as Yang pulled the shirt off her. Their lips crashed back together and while they made out, Yang busied herself by massaging and playing with Ruby's modestly sized B breasts.

She lightly pinched and twisted her sister's nipples, eliciting squeaks and moans of excitement.

The two pulled apart to catch their breaths. They stared into each others eyes as they panted and gulped for air. Yang could feel a dampness between her legs and decided to push this further. She grabbed Ruby's hand and put it on the damp spot of her short shorts.

"Ruby, you've gotten me so wet. Do you know what this means?" She asked with faked innocence.

Ruby merely managed to shake her to say no.

"It means," Yang started and leaned down to whisper in her sister's ear. "That I Need you to touch me." She breathed huskily.

Ruby's breathing hitched at the words. She stared down at Yang's pants dumbly. Yang decided to give her some direction.

"Pull my pants off Ruby." She said seductively.

Ruby's hands fumbled with the buttons for several seconds before undoing it, and quickly unzipping the pants. She pulled them off and for the umpteenth time that day she stared wide eyes at what she saw.

Yang wasn't wearing underwear at all, and so Ruby saw Yang's glistening wet pussy clearly. It was tight looking, and resembled a peach. And just above her clit was a neatly trimmed triangle of golden pubic hair.

"Do you like what you see?" Yang asked, snapping Ruby from her trance.

"Y-yes." She responded shakily.

"Then why don't you give it a Taste?" She asked wantingly.

And Ruby did just that, sticking her tongue out, she pushed it between the wet folds of Yang's pussy, and began moving her tongue up and down.

Yang fell back onto the counter and practically yelled in pleasure. She fell into a fit of moans as Ruby's soft tongue was destroying her with ecstasy as it slid up and down.

"How does it taste?" She asked between moans.

Ruby pulled away and answered earnestly.

"It tastes sweet." She said groggily.

"Sweet." Yang mimicked.

Suddenly an idea popped in her head.

"Would you like it sweeter?" She asked sweetly.

"Oh yes." Ruby replied excitedly.

Yang reached beside her and grabbed more cupcakes. And just like she did earlier with her tits she smashed and spread the cupcake and icing mush over her pussy. It felt weird at first, but once Ruby placed her whole mouth on Yang's pussy, she couldn't have cared less.

Yang was losing her mind as Ruby smacked and swirled her tongue all over Yang's womanhood. Yang giggled slightly when she realized something.

'She's really, "Eating" me out.' She thought punfully.

But the thought vanished when she felt something push inside of her. She gasped from the wave of pleasure. Looking down her body she saw Ruby had taken the initiative to start fingering her and sucking/licking her clit.

Her legs tightened around Ruby's head against her will, and her back arched off the counter top. Her grip on Ruby's hair tightened as she inserted another finger into Yang.

"Fuck Fuck Fuck Fuuuuck!" She screamed. Ruby's pace quickened and Yang felt her orgasm fast approaching.

"Ru-Ruby! I'm gonna...I'm gonna...CUUUUUM!" Yang screamed as she climaxed. Her pussy tightened around Ruby's fingers and gushed her wetness all over her sisters hand.

Yang's body went limp as orgasmic ecstasy cascaded through her body, causing her to shudder randomly. She panted for air and felt Ruby lay her head down on Yang's Abdomen. Yang absentmindedly played with Ruby's hair as she rode out the residual waves of her climax.

"I've never done anything like that before Yang." Ruby said breathlessly.

"You were amazing little sis." Yang told her graciously.

"Really?" Ruby asked happily.

"Uh-huh." Yang replied.

A few minutes of lying in that position later, she sat up and jumped down from the countertop; coming to a stand in front of Ruby. She leaned down and pecked Ruby on the lips before taking her by the hand and saying in a low voice.

"Follow me." She said, taking her by the hand and leading her out the kitchen and towards her bedroom. Once she stepped in, being trailed by Ruby, she made a beeline for the Queen sized bed. Yang pushed Ruby down onto the bed and crawled on top of her sister's lithe body.

Yang soaked in the sight of Ruby's near naked, pale body, under her. Yang felt especially drawn to the small pink nipples of her sister's breasts. Without a second thought, she leaned down and grabbed the left one between her teeth and nibbled. She busied her left hand by massing Ruby's right boob. The moans that escaped Ruby's mouth was like music to Yang's ears. She let her tongue swirl around the hard nipple while she started trailing her left hand up and down Ruby's side.

"Mhmmm, Yang." Ruby moaned. "I need, ohhh, I need…" she tried to say but could form the words.

Yang brought herself up from her work and came face to face with Ruby.

"What is it sis?" she asked, wanting to know what Ruby wanted.

Ruby caught her breath, brought lips to Yang's ear and said.

"I Need you to touch me." She said with so much need in her voice.

Yang smirked as she pushed Ruby's head back onto the bed and assaulted her lips with a burning kiss. As they kissed she moved her hands down to the button and zipper of Ruby's jeans. Once she found them and undid them, she sat up on her knee's and brought Ruby's legs in the air; slowly sliding her jeans off her creamy white legs.

Yang took her time spreading the beautiful legs apart, kissing her way down from the ankle all the way to Ruby's heart patterned panties. She teasingly kissed all around where she knew Ruby's pussy to be. Ruby whimpered from the teasing.

"Yang, please." She pleaded.

Yang put on a fake pout as she obliged and, to the shock of Ruby, tore the panties off in a quick shred. But before Ruby could complain, Yang shoved her mouth to her sisters pussy, silencing any protests with moans and screams of pleasure. Yang didn't pay any attention to the fact that Ruby was unshaven, she was too lost in the heavenly sweetness of her sister's pussy. It was like eating all the cookies, cakes and brownies in a bakery all at once.

Using her thumb she rubbed and ran circles around Ruby's clit, dragging even more moans from her.

"Yaaaaang, faster, faster." She squealed in her high pitched voice.

And so Yang did just that. She licked faster, smacked and sucked harder, quickened the speed of her thumb. Ruby lost what little control she had then, screaming at the top of her lungs and tearing holes in the bed sheet from her immense grip.

"Yang, I think I'm, I think I'm… AHHHHHHHHHHHH.' One final scream signaled that she had finally hit the breaking point and came. Yang felt the fluids flood into her mouth and down her chin. She quickly gulped down as much of the sweet nectar as she could. She playfully licked the folds of Ruby's pussy, making her shiver from the contact. After waiting a few minutes she crawled up to lay beside Ruby, who laid her head on Yang's bare chest and curled into her side.

"Yang," she said. "That was-"

"Amazing? Fantastic? Dirty and Nasty?" Yang interrupted.

"All the above. But what I was going to say, was that that was my…first time." She said shyly.

Yang's eye's widened in shock. "Really? Damn, your good for a first timer."

Ruby giggled and buried her face shyly into Yang's chest.

"I've always wanted my first time to be with you, Yang. I've always wanted you."

Yang just sighed happily, put an arm around Ruby, and pulled her closer for the snuggle.

"I am such an Enabler." She said with a chuckle.