Racing into Heat

Author’s note: This is a commission thanks to one of my patrons, thank you so much! Hope y’all enjoy it here!

“Hey there!” Blake groaned slightly as she opened her eyes for the first time that morning. “You, you uugh ok over there babe?” Gently, she brought a hand to Ruby’s back.

“Fine.” Ruby answered plainly and like nothing were out of the ordinary at all.

“You… you sure about that?” Blake questioned tenderly.

“Yeah! Great actually!” Ruby assured.

“Then is there a reason you are… trying to attack me?”

“Attack you! It is just Sunday snuggles! How is that an attack?” Ruby’s head darted up to pout at Blake for a good half-second, but she was quick to return to snuggling rather avidly at Blake’s chest.

“Sweetie, you know I love how excited you get. But why exactly are you trying to push my boobs off of my chest with your face?”

“I! Am not!” Ruby paused and pouted again. Of course, it only lasted another half moment before she returned to snuggling and attempting to bury her existence into the perfect sensation of her lover’s skin against her own.

“I’m not saying it’s not nice- it would be nicer if you were a little softer about it, but…” Blake trailed off as she gazed down at her girlfriend. “Are you sure you’re alright?”

“Yes! I told you I was alright!” Ruby retorted with a shorter temper than was typical of her.

“Ok, but if you’re alright, is there a reason you are humping my leg like that?”

“Huh? What? I-” Ruby paused and looked down over herself where her hips were still rubbing her core against Blake’s thigh. “Mhmm, actually, that feels really nice.” Ruby cooed before putting more than just her hips into it.

“I’m sure it does, I can already feel your eagerness through your pajamas.” Blake tried to relax into bed, but Ruby kept pressing herself harder against Blake as she rubbed, humped, and snuggled into the other woman. She tried to be patient, tried to be understanding, but inevitably, Ruby’s unique behavior pushed her to speak up again. “Hey, babe! Mind telling me why you are so avid about… not sleeping in on our sleep in day?”

“Hmm? I am! It’s Sunday sleep in and snuggle.”

“Ruby, I love you, but this is not snuggling. It is at the very least violent cuddles, but something more overall akin to horizontal attempts at tackling me.”

“I’m not tickling you, am I?”

“Tackling, not tickling.” Blake sighed.

“Oh-” Ruby giggled.

“What’s going on love?” Blake urged Ruby’s head up to look at her.

“I- umm… I dunno?” Ruby’s eyes were so wide, cute, and innocent as always. “I’m just… I don’t know. You smell really good tho! And, and I’m feeling nice and cuddly and! It’s warm in here, but not like warm in the way that it’s uncomfortable to cuddle, just warm in the way that it’s really nice and comforting and I really love it and and and-” Ruby seemed to speak faster and faster with every word, getting more and more worked up as she went on. She likely would have run her mouth till she was all worn out and out of breath, but Blake stopped her with a kiss.

“Love, do you think ‘it’ is starting?” Blake offered in a quiet calm tone.

“It? It? What’s it? Ohh! Is it something fun! Did you plan something nice for our day off! What is it? What’s starting!” Ruby cheered, climbing on top of Blake and nearly hopping up and down on top of her.

“No, not anything I am doing, I mean… your…”

“My what?” Ruby tilted her head to one side.

“Your heat babe.” Blake placed her hands on Ruby’s hips and held her down to calm her. “You’re getting rather old for it to not have started yet. I know sometimes it won’t come when you’re extra stressed or if someone and their life just isn’t ready for… that. But, even still, you’re-”

“Huh? Heat?” Ruby’s eyebrow rose as she leaned back perplexed.

“You- you don’t know?” Blake questioned dumbly.

Ruby shook her head.

“I- your mom never explained it to you?” Blake sat up on their bed with a growing concerned face.

“Explained what? Heats, isn’t that a thing some animals get for like… for… for breeding?” Ruby’s face grew redder than the tips of her hair as she brought herself to speak it.

Ruby found herself fixated on the word as soon as it slipped out of her mouth. Breeding… more than just her cheeks burned at the thought. Thousands of images and ideations flew through her mind as she processed what the word meant; what breeding was. She burned at the concept. Ruby had felt warm since she first woke up, but with that word tainting- no, corrupting her every thought, her temperature seemed to skyrocket.

Ruby couldn’t stop thinking, ruminating, and fixating on everything she had ever heard of both heats and how they related to breeding. What might it be like to be bent over and- to be held down and- to be- Her eyes began to cross as she got caught up in the thought of what a poor beast with their heat being satiated might feel like.

“Shh, shh, Ruby, breathe, it’s alright- oof, love, you’re really warm. Are you doing-”

“Blake, what’s wrong with me?” Ruby’s cheery expressions was long gone as she looked down to Blake. “Wha-”

“It’s ok kitten.” Blake whispered soft and seductive as her hand raised to cup Ruby’s cheek gently.

“I- mhmm that’s nice, but you- you only call me that when we- woah, that’s really nice~” Ruby found herself pressing into Blake’s palm.

“Shh, it’s alright. You are fine, this is completely normal.”

“Fine? Normal? Normal! What’s normal? I- how can this be normal! I- so warm, feels so weird! And- my… my tummy it feels-” Ruby looked down concerned and Blake was quick to press her palm to Ruby’s lower abdomen. “Hmm… that’s nice.”

Blake chuckled softly. “I bet it is kitten.”

“Hey! You only call me that when we are-”

“Oh, I’m sure we’ll be doing a lot of that soon enough kitten.”

“Wait! And- and if it’s normal! Then… then why don’t you…” Ruby couldn’t bring herself to say what it was she was feeling, what her body seemed to be all too fixated on, what her mind couldn’t forget.

“I’ve been taking suppressants since I was like sixteen.”

“Su- suppressants?”

“Did Summer not tell you anything about this?”

“I- about-” Ruby nearly choked, first at the idea of talking about such a thing with her mother, and then about the fact that she would never be able to have that conversation with her. Playful though concerned confusion on her face quickly soured as the thought sunk in. Was this just another thing other faunus women would have learned from their mother that she would simply never get to hear? Tears welled in Ruby’s eyes as the complex emotions and new scary sensations built in her. She- she didn’t have her mom to help, so how-

“Oh, sweetheart.” Blake sighed and sat the rest of the way up to hold Ruby. “It’s ok, it’s all going to be ok. I’m here for you.” She squeezed the younger faunus tight.

“Blake… what’s happening to me?”

“You're just going into a heat Kitten.” Blake kissed Ruby’s cheek and soothed her hands down the back of Ruby’s neck and down to her tail.

“Blake.” Ruby whined in a worried tone as she pulled closer into Blake and her spotted tail looped around her girlfriend’s wrist.

“I know, it’s ok my little Cheetah. I know you always like to race through things, but this we should take slow, ok?”

“T- take it slow how?” Ruby stammered. She wasn’t sure how in the world they could take this slow. Her whole body was burning up and she ached in a way she had never known before. It all only got worse every time her mind drifted back to the thought of what a heat actually meant; about what her body truly wanted- how she wanted to be bred, to be filled up and loved and-

“Shh, shh.” Blake comforted with small kisses up and down Ruby’s neck.

“Hannh~ B- Blake, that’s…”

“There you are, good kitten. It will be alright. You are doing fine.”

“What- what’s happening to me?”

“I think you already know love.”

Ruby whined. “I- it’s starting to hurt!”

“I know kitten. It’s going to hurt.” Blake nodded into Ruby and scratched gently around Ruby’s tail.

“Mhmm- I!” Ruby succumbed to the sensation of Blake scratching at her weak spot but fear pulled her back out from the calm it brought. “But I don’t want it to hurt! I- I don’t like hurt!”

Blake sighed. “I know kitten. But I’m here. I’m right here for you and you are stronger than you know.”

“N- no! No strong! No! I- you said you’re on suppressants? I- let me take those too! S- stop this.” Ruby demanded weak and desperate.

“Oh, Rube.” Blake nuzzled into Ruby’s shoulder. It doesn't work like that. Even if I had some extra to give you, it wouldn’t do anything now, your heat has already started.”

“I! I- but I don’t want-”

“You don’t want what kitten? You don’t want to be taken care of and loved? You don’t want me to kiss, tease, eat, love, and please you? Maybe even tie you up a little?”

Ruby melted into Blake’s arms at the taunting sultry words. They drove her mad and just made the funny feeling in her lower abdomen grow and intensify. It was warm, almost painful, but not quite. Almost pleasurable in a weird way, but she could tell that might turn on a dime at any moment. It could turn sour, evolve into pain with no warning, and somehow Ruby already knew that. Somehow, she already knew what would save her from the pain she feared as well.

“Well, what is it? What don’t you want love? I- is it to be bred? I do have something to help that urge, but if you don’t want, we don’t have to use it. There are plenty of ways to ease a heat without… without all that. It’s less effective, but that doesn’t mean it doesn’t work.” Blake assured with more gentle kisses at Ruby’s neck.

The cheetah faunus whined and began to pant. Her neck burned hot at Blake’s kiss. She… she needed it so much less gentle! Blake always had a tendency to be gentler than Ruby wished; a little precious with her, careful not to hurt her. Ruby normally could deal with that, silently sad that Blake wouldn’t press things farther. But with the pain beginning to build in her, the ache starting in her bones and seeping into her every weary muscle? It felt evil, rude, and mean! How could Blake do that to her, deprive her of what she really needed; to be treated a little rougher, loved, and fucked till she could barely speak; ideally till she couldn’t at all. “D- don’t want… hurt… t’s starting t- ta hurt.”

“Oh, oh, oh, my poor girl. I know, I know it hurts, but it’s going to be alright.” Blake cooed as she held Ruby’s face. “It will be alright. You will be fine. It will hurt, it does hurt at first, but… but when you have someone to help you through, it feels really really good.”

Ruby whined and shook her head. “Nuu! Nuu! Nuu! I- it hurts already! S- stop it! M- make it stop!”

“I can’t make your heat stop, but I can help you through it babe. If you need, I have some dust that can give me what I need to help you?”

“What- what you need to help me?” Ruby paused, tears of fear already welling up in her eyes.

“Don’t you feel it yet? I- umm… empty?” Blake traced over Ruby’s lower abdomen where she knew the ache would be growing.

The word triggered something in Ruby. As if simply hearing it made her realize. She was so fucking empty! She was empty and it hurt! Needy walls clamped down around nothing and it was wrong, it was so fucking wrong. Nothing about it was right! How could she be this empty! Un- unacceptable! Her heavy breaths quickly slipped to desperate pants. “Help! Help! No empty! Fill! Fill n’ fix! No more empty! Just… just…” Ruby couldn’t put a word to what she wanted- she knew what her body needed, but… but Blake didn’t have that. She loved Blake’s body so much. It was perfect, and her favorite thing had always been when Blake let her rest her head between the other faunus’s thighs for the majority of a day, just licking up and pleasing Blake. But- but Blake didn’t have a-

“You want to be filled with a nice hard cock? A fat knot splitting your pretty pussy lips open? Is that what you need my sweet little kitten?”

“Haa- haa- how!” Ruby whined.

“There- there’s some dust. It was meant to help faunus like us when one goes into a heat and the other doesn’t have the ideal hardware to help. I- I can help without it, but-”

“Cock! Cock! Want your cock! Give! Give now! Want! Want full! Now! Please!” Ruby unravel and began to literally attack Blake with kisses and humping.

“Woah! Woah love. Give me a minute. I need to actually take the dust to help you like that.”

“Cock! Cock now! Fill! Knot! Breed! Blake! Now!” Ruby panted out each word with breathless conviction.

“R- Ruby, slow down- hey! Stop that- Kitten!” Blake yelled to get Ruby’s attention, but it did nothing. Ruby still mindlessly humped at her and tried to assault her with kisses. That was when Blake snapped just a little, grabbing Ruby’s wrists firmly and pinning her down against the bed. “BAD! BAD kitten!”

Ruby whined low, broken, desperate. Even she could smell her own wetness, the odor of her desperation beginning to fill the room.

“I- b- bu- Bl-”

“No! Bad! Stay here and I will get the dust I need to help you.”

Ruby fought at Blake’s grasp. It was so firm, ultimate, strong. She was such a good mate, a strong mate, another feline faunus! Strong, powerful, kind, and tender when needed. Beautiful and immaculate how her long black hair cascaded off her head and framed her face- it was even more perfect when she was just a little mad, when she was frustrated and about to make Ruby pay for disobedience. Ruby’s walls clamped. Her body needed Blake, she needed Blake, she wanted nothing other than to carry her kittens, to have a full litter from the strong and virile woman. That was why she fought so hard- her ultimate failing only served to drive her all the more insane at every step.

In her desperation, Ruby even tried to use her semblance to break free of Blake’s grasp, but the firm grip kept her wrists from turning to rose petals and therefore kept her from zooming off.

“I’m going to have to tie you up, won’t I?” Blake sighed in frustration.

Ruby tried to fight a delighted grin from growing on her face- she failed. She failed, and she could see Blake rolling her eyes at the sight.

“Let me find my stash and I’ll get to taking some so we can start.”

Ruby whined and fidgeted. “Hurry.”

“Of course my little cheetah. Always wanting to rush around. I’ll do my best to keep up.” Blake left a small kiss on Ruby’s cheek and released her wrists to go find her bags.

Ruby’s hands quickly fell down, one to her neck and another to her pajama bottoms. She was always eager, easy to get worked up… to get wet. It was embarrassing- and how she enjoyed it didn’t help. But, she had always been ample in her arousal, but this was something else entirely. She had soaked through the crotch of her pajama bottoms and the scent of her need was pressing. She could smell it, and she knew for damn sure that Blake could too. Blake could… she could smell how desperately she needed this! Ruby whined.

A hand slipped under her pajamas and down to play with her soaked need. Of course, it wasn’t enough. All it really served to do was get her frustrated and flustered. It felt nice- in a way, but not in the way she wanted. Not at all. Ruby tried to rock her hips up into her fingers, but that too seemed to fail in helping. As her fingers continued downstairs, she began to feel an itching at her neck, and not just because she had begun to scratch at the spot where it itched. She- her neck felt so sensitive but itchy! She could feel her pulse in the sensitive skin and she needed to feel more on it. Her nails served for some level of relief, but that was in no way what she desired.

Ruby’s mind incidentally stumbled back on Blake, on how those lips felt on her neck. Mhmm… what it might feel like to get a nice hard hickey, to have her neck covered in black and blue marks from where her partner sucked, kissed, and bit- Bit! Ruby needed to be bitten! She needed to wear Blake’s bite! She- she had seen a bite mark on Summer when she was younger. She remembered asking why a Beowulf must have bitten her mom and why their bite looked so human. Ruby remembered the angelic laugh Summer gave her before she assured her she’d understand when she was older. Well, Ruby understood now. She needed to feel Blake’s bite on her, for everyone to know she was Blake’s and Blake was her’s.

When Blake finally returned, a dust crystal between her lips, Ruby had already begun clawing at her neck with both hands. “Hey! Hey! Stop that! Ruby! Ruby! You’re hurting yourself!”

“It hurts! Need! Need! Need!” Ruby whined and cried as she felt her hands being forced away from the spot on her neck from which her body demanded to be pierced.

“Need? What do you need Kitten? It will be alright. Just breathe.”

“Bite! Bite! Bite me! Need bite!”

Blake sighed. “Oh, Kitten. Poor thing. I will bite you if you want, but only when it is time. Sadly sweetie, it is not time yet. I know your skin feels a little itchy, but the bite would hurt far more than it would help right now.” Blake popped the dust into her mouth and crunched down on it before swallowing it. “It’s going to be alright, but I am going to tie you up so you don’t hurt yourself anymore before it is over, alright?”

Ruby whined and pouted, but she nodded.

“That’s it. There’s my good girl.”

Ruby’s eyes crossed at the praise. It felt so good that she barely noticed as Blake turned her over and began to wrap soft ribbon around her legs and then arms. She found herself giving into the restriction even easier than she normally would. It felt so perfect, it was just so easy to yield to whatever Blake wanted. Blake knew what was best for her, Blake loved her, and she trusted Blake with her life. It was likely for those reasons that it was so easy to just give in rather than be defensive like a heat would leave most people.

Before she knew it, Ruby’s legs were tied back onto themselves, her thighs pressed against her calves, and her arms had been tied up behind her. “There, there you go love. How does that feel?” Blake tested at the strength and tightness of the bindings by pulling at Ruby’s hand and gesturing for Ruby to squeeze her finger.

Ruby squirmed but acquiesced and squeezed the other woman’s finger obediently.

"There, there. Is that better?"

"Nooo~" Ruby whined. "H- hurts… empty!" Her holes clenched and prayed for the miracle of any pleasure, any relief for the hollow ache that seared through her. Her world was fuzzy, but she could see Blake’s nostrils flair as the faunus pulled down her pajama bottoms. She could see how Blake’s focus seemed to narrow and a tent grew in Blake’s robe. “I- I- is that…” Ruby whimpered, her eyes locking on the protrusion.

Blake growled softly and a hand went down to her crotch to palm at the new appendage. “Yes, yes it is. It’s…” Her breath grew husky and low. “It is, and it is hungry for you kitten.” She roughly tugged at it with a clear expression of pleasure at the friction.

“Give! Give! W- want! Taste! Gi ve!” Ruby tried to reach out but fell over in the process. As it turned out, being bound with her arms crossed behind her didn’t make reaching out any easier. All the same, that still didn’t stop her and she drug herself closer to Blake’s crotch by her chin and force of will alone. It smelled like Blake but different; like blake if Blake could invade her nostrils and tear every sense of logic and through away from her until she was fucked, filled, and bred.

“No, no Kitten. Not today.” With a mind-shattering show of strength, Blake held Ruby down by a singular hand pressing down on the back of her neck. It restricted Ruby’s airway just enough that she couldn’t help but stick her tongue out and moan in delight. “A- another time for that Love. Your heat needs some satisfaction for now; you need it, and I need it too.” She corrected with a little more honesty as she pulled herself from out of her night shorts.

Ruby was fairly certain she began to drip at the sight of it. She wanted it. She needed it. She had to be filled! Please! Oh, brothers, please! She needed that beautiful head to slip past her soaked lips, inside her quivering walls, and to press against her womb. There was a sudden realization that she’d been keening, that a needy whine had long since begun slipping from her throat.

“It’s ok, it’s all ok beautiful little kitten. I’ll make it feel better in just a moment.” Blake assured as she climbed up onto the bed behind Ruby. “What would you prefer love?” Blake gently moved her hand down to massage along the tense mussels of Ruby’s back. “Do you want me from behind or do you want me to flip you over onto your back?”

Ruby was long since past words. She loved Blake and appreciated everything her girlfriend was doing for her, but she had not an iota of the strength she needed left to give a reasonable reply. What she could manage was to push herself up with her knees. From there, she shook her ass enticingly and arched her back to reveal her need to Blake all the better.

“Such a good girl for me, aren’t you? Arching up and presenting for me?” Blake mused and dipped a hand down to toy with Ruby’s ample wetness. She brought her fingers back up to her mouth to taste- perfect, fresh with the flavor of heat, and it only pushed her newfound instincts to fuck her kitten all the harder.

Ruby whined and shook her ass back and forth. She needed more, that much was obvious. A couple fingers delving down to greet her gently would never be enough! No! No, she needed to be filled to the brim, to feel a knot split and swell inside her needy pussy.

“Here Kitten. Want a taste?” Blake offered the fingers coated in Ruby’s desperation up to her lips.

Ruby helplessly took to it like the first drop of water in the desert. She needed to be good, to obey her lover, and earn every inch of her cock. Licking and sucking, she took the fingers into her mouth and moaned onto them. She tasted better than she could ever have imagined.

“That’s it, there you go. Such a good girl.” Blake kissed up Ruby’s spine and the heat-addled faunus could feel her partner’s warmth against her back; more specifically, the warmth of Blake’s cock so close to her desperate hole.

“Hannh~ B- B- Blake~” Ruby whined onto Blake’s fingers as she greedily tried to suck them down further into her mouth.

“Does it hurt yet?”

“Mhmm.” Ruby nodded limp and weak.

“Are you ready? I’ll help, I’ll make the pain go away kitten.” Blake played with the tips of Ruby’s hair as she whispered into her lover’s ear. “May I help you through this love?”

Ruby more shuttered than nodded, but Blake knew her more than well enough to understand the keening whimper that slipped from her lips. She knew what her Kitten needed, so she lined herself up and slipped in.

The two of them had played around with some toys before. Blake owned a strap, but she and Ruby more often preferred the tactile feedback of being able to pleasure each other directly; plus more often than not, Ruby was happy to just spend hours eating Blake out or with her own head resting back in the pillows. So, despite the fact that penetration was not quite entirely alien to Ruby, the sensation of Blake lining up physically hot, hard, cock with her entrance… it felt about as novel as a sensation could get. She cried out, screamed loud enough to wake the whole building! Blake, ever thoughtful of the neighbors, covered Ruby’s mouth and occasionally collected some of the cheetah’s juices to offer them back up to her in order to keep her mouth quiet and busy.

Ruby coughed and nearly cried onto Blake’s fingers covered in her own wetness. Her noises only grew once more as Blake began fucking into her harder and the other woman began kissing and nipping at her neck. It was when Blake finally caught a good half bite that Ruby really screamed again. She and her body needed the bite! She needed everyone to know who's she was! That she was loved and recently bred! Yes! Yes! Yes! Everyone needed to know how good she had been fucked by her lover.

When Ruby started screaming some barely intelligible version of the word ‘bite’ over and over and over again, Blake got the idea and she began to give in. Ruby was tight and warm, not to mention soaking wet. For her first time with the new hardware, Blake did reasonably well with holding out, but she was approaching her limit and she hoped Ruby was too. That all would help with the pain of the bite- she would know, Adam hadn’t been kind enough to wait. “Close?” She checked with a ragged buck into Ruby- fuck her kitten was just too perfect, too warm, soft, and slick. She had not a hope in the world that she could make it but another two or three thrusts further.

“CLOSE!” Ruby screamed.

“Good, then cum for me, cum for me as I knot and bite you kitten.” Blake requested in her husky but caring tone.

If that hadn’t been enough to send Ruby flying off and over the edge, the sensation of Blake’s bite breaking her skin and the cock being forced all the way inside of her would have. But then, then came Blake’s knot. The base of Blake’s cock began to swell with her first shot. The warmth of her release felt like it could melt through Ruby and burn her soul in the absolute best way; like it could stain her existence; leave an indelible mark of the woman she loved; evidence that she was loved back. But then the next spurt came. Ruby didn’t know much about the average dick, but she wasn’t under the impression that they came that much- or that they had knots for that matter. But Blake seemed to be filling her up with more than enough release; enough that she could almost feel the weight and pressure of Blake’s cum filling up her womb. There must have never been a sensation so heavenly.

The heaven was nearly disturbed for just a moment as the knot continued to swell larger. At first, it was nice, delightful, perfect even. It had been the exact stretch Ruby’s heat needed, but then… it didn’t stop. It kept going, it kept going and Ruby began to worry if the knot could split her apart? Would it rip her in half? It felt phenomenal, but it- it was starting to hurt. It was starting to hurt and she was already full with Blake’s cum and spurt after spurt seemed to just keep coming and- and- and- That’s when Ruby’s walls clamped down again. A half moment of pressure so unimaginable and then she was cumming and squirting her brains out, making quite the mess of their bedsheets. With her final orgasm settling, Ruby laid limp under her girlfriend. Blake kissed at the bite and watched as Ruby’s aura began to heal it. There would be a scar, but that was more or less the point. Gently, she undid Ruby’s bindings and massaged out Ruby’s weary muscles while trying not to jostle their tether too much.

“Hanhh… good.” Ruby whimpered.

“I bet it was kitten. You were no slouch yourself. So tight and perfect.” Blake kissed along Ruby’s neck and slowly shifted them both onto their sides.

“Love… love you.”

“I would hope so; because I love you too babe.”

Ruby purred gently and a hand fell down to her belly. “K- kittens?”

“Well, we might both be faunus, but I don’t think we could actually manage to make baby cats.”

Ruby whined displeased.

“No, not yet, not from this time. The dust I took… though the first round can be ample, it’s rather impotent… but… umm…” Blake trailed off.

“But what?” Ruby questioned groggily.

“We… we kind of have a choice to make now. I can either give you some of my suppressants, or… or we can keep going, and I’ll get… more potent the further we go.”

“More- more potent?” Ruby rubbed her belly and fought to think of how much better it might feel to be filled with Blake’s more potent seed. “We- we would…”

“We could, if you want.”

“I- I want.”

The End.