Chapter 1 - Lustful Beasts

Notes - All characters in this story are the age of 18 or above. This means that if a character happens to be under this age in the show canonically, in this story they are to be depicted as an adult version of them. I do not want to nor wish to condone sexual intercourse with minors. 


A/N - I have a Discord Server available on my profile where you can receive updates whenever I post my stories, ask questions or receive an update where you are in the commission queue. There is also a Patreon available where you can submit/vote on community polls, receive discounts and shortened waiting times. 


Tags - Incest, Creampie, Impregnation.    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


Garfiel Tinsel was an energetic young man who was intense in several facets of life. He was moving about in the Manor in a manner similar to his duties on the Sanctum, mostly in order to keep himself busy and distract himself from a more personal problem that had dawned on him. It was something that certain demi-humans similar to himself experienced at some point in their lives once they would mature and grow into adults. What was troubling him so was the first mating heat, something that beastkin would go through, but always keep the situation to themselves, never really talking about it outside of their own family members, typically their parents who they could rely on. Of course, this was an option that wasn’t available for Garfiel, considering that both his mother and father had already long passed away. There wasn’t anyone else that understood the pain, grief, and uncomfortable circumstances that he was going through. That is, apart from his Grandmothers, and his sister. Although there was no way in hell that Garfiel wanted to talk to those two ladies about it, his pride wouldn’t allow it, and Garfiel was far too embarrassed to talk to women about it. 


Besides, the common symptoms that beastskin would suffer from during their period of mating season was typically known to be intense, in some specific cases, they would even go berserk. Yet the worst he has felt thankfully was feeling a little hot under the collar, and a painful boner that hadn’t subsided for the entire day. That was certainly a cause for concern, but at the very least he wasn’t going ballistic and destroying everything in sight until he found a lady beastkin to mate with. If he were to attribute a reason behind why the symptoms hadn’t affected him as badly as it would some others, it was most likely because he was actually only a quarter beast, so Gar figured that he could probably work this out on his own. He would be fine so long as he maintained his routine and ignored the problem, trying to distract his brain from thinking about the his straining erection or addressing his feeling of lust, waiting until nighttime to deal with it like most men dealt with cases of arousal, except his was on the extreme side of things. 


“As long as I don’t see Ram, I should be okay.” he thought, the sole woman who’s charms that he couldn’t resist. It was almost like a bad charm that this thought crossed his mind, as he happened to come across her, seeing her from a distance. It wasn’t only due to his overwhelming beastly attraction, but he also had a crush on the girl too, and he couldn’t help but want to talk to her, having long admired her from afar. Garfiel approached her and immediately regretted his actions, feeling his tool twitch but managing to cover it with the boxes that he carried in his hands. 


“Y-Yo, Ram.” awkwardly spoke Garfiel, his heart skipping a beat from merely seeing the cool expression on the pinkette’s face as she turned around to see him. 


“Oh, Garf.” she responded.


Their conversation was rather typical, except for the unique and pungent smell that seemed to be radiating off of her. It was immensely thicker than the small that would grace his uber-sensitive nostrils, his animal senses allowing him to better smell the aroma surrounding Ram, the beautiful, short-stacked woman. Garfiel couldn’t explain why, but with his senses in overdrive he was somehow capable of realizing that Ram was fertile and capable of bearing his children at this very moment, the tempting thought crossing his crazed mind, still self-aware enough to recognize that he wasn’t in a calm state of mind. 


“T-This must be an effect of the heat I’m in!” he thought, yet the realization did nothing to stop his mind from jumping to several erotic thoughts, mixed in with sexual fantasies of him utterly pounding Ram with all of his might, trying his absolute hardest to breed her, responding to his instincts that were screaming at him to inject his seed into a breedable woman, imagining that Ram would beg him to bear his children also. 


Garfiel’s thoughts, or better accurately, his sexual daydreaming was thankfully soon interrupted by Natsuki Subara who stumbled upon them talking, and of course given his lack of social awareness, he stumbled right in between their conversation, looking to talk to Ram about something or other, the young beastkin could care less about meaningless conversation at this current moment if it didn’t involve the woman of his dreams. He didn’t care much as he was more preoccupied with what he was thinking about, noticing that he most likely didn’t have as much control as he thought, his twitching boner already threatening to rip the front of his pants. He was a secretively thoughtful person, and for both the sake of Ram and potentially the sake of “Boss”, he decided to tuck his tail and retreat for the time being, waving them goodbye and putting up a farce like nothing was wrong, having to deal with these troublesome emotions himself, swallowing his pride and deciding that it was time to receive some help. 


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Garfiel had nobody else to turn to except the person closest to him, that being Frederica Baumann, his older half-sister. He demonstrated a bashful side that nobody else was allowed to see, his face flushed a crimson red as he confessed everything that was going on with his body to his elder sibling. 


“Hahahaha!~ If you want me to tell you the truth, this was the last thing I’d think you’d ask to talk to me privately about. You’re in heat, huh? My cute little brother has become a big boy now, hmm?” teased Frederica, an amused smile on her face, as Garfiel’s heavy blush somehow reddened even more than it already was as he shouted irritatedly in response.


“H-Huh?! Don’t make fun of me like that, Big Sis! Do you want me to clobber you?!” threatened Garfiel, although he didn’t mean it in the slightest. After the years they’ve been apart, Frederica had grown immensely, in fact, she was even taller than he was. He joked about having to be the one to call her “Big Bro” now because of their difference in size, considering that her body had matured significantly, shaping out to become a gorgeous, bodacious woman. 


“I’m just teasing you, Garf… I’ll help you. That’s what older sisters are for, right? Said Frederica, still giggling to herself slightly much to his dismay. 


“Well, thanks! I know you’re having the time of your life making fun of me, but it’s really becoming a pain in the ass for me, you know?!” expressed Garfiel. 


“I can imagine! It’s actually not a good idea to completely leave it alone and try to forget about it. There’s a reason why we enter mating season, and abandoning your instincts only leads to the effects and your desires to grow even stronger. This isn’t something that I want to tell my brother, but… I’ll provide you with the same help that I received that guided me through my experiences with mating.” explained Frederica, poking Garfiel on the forehead as he backed away and covered it, his breath noticeably becoming more ragged compared to the first time they’d seen each other. Before he could snap at her again, she held his hands out and placed some materials that she used when it was her time of need. 


“Listen carefully, Garf. This is embarrassing to say, from the bottom of my heart, but I assure you these practices are important. You must-.. Um… How do I put this? You must alleviate yourself-” 


“Alleviate myself?”


“Are you really going to make me say it?!” 


“Well, I have no clue what you’re talking about!” 


“Ah, gosh! Fine. Make sure that you masturbate at least once at night, and especially in the morning! If you forget to do this even once, it can drastically affect how you feel the following day!” shouted Frederica, a hint of a blush on her cheeks too as this wasn’t a topic that siblings would normally talk to each other about, although it was inevitable considering that Garf had nobody else to turn to that could provide help. His resolve was to avoid hurting his friends, and the girl that he loved, Ram. 


“M-Masturbate?!” he reacted.
“Yes, masturbate.” sighed Frederica.


“....”


“What is that?” he asked.


“You’re not serious, are you?” she replied, flabbergasted.


“I’m not the type to joke around with something this serious!” expressed Garfiel.


Frederica’s jaw dropped, having never known that her younger brother was still so innocent. Under the false impression that he’d definitely grown, he was still young at heart, although his body had definitely matured compared to when they were kids. He was still experiencing a lot of firsts, he was an inexperienced man in this world. She let out a sigh of disappointment and covered her face with her palms, feeling that there was a lot of work ahead of them. If Garfiel didn’t know what masturbating was, he was already completely oblivious to the fundamentals of dealing with a mating season, and the unbearable heat that was in. She almost found it remarkable that nobody had ever told him what it was, but it sort of made sense considering the type of people that he came in contact with on a daily basis. 


After what felt like an entire minute of contemplating, with Frederica clicking her tongue, biting her bottom lip, and sighing frequently, she finally broke the silence as Garfiel didn’t know what to do other than wait for her internal struggle to finish. 


“Okay… I’ll teach you. Ah, but this is really weird! You can’t tell anybody about this, okay, Garf?! I’ll seriously hurt you. I’ll help you get started, but nothing more!” yelped Frederica, confusing her younger brother that looked at her quizzically with a tilted head, there wasn’t much that could make her as flustered as she currently was. Whatever masturbating was must’ve been something that was seriously embarrassing, figuring that his older sister was mature enough not to waver by much of anything. For some reason, he felt hesitant to accept her assistance given the nature of the topic, and although he wasn’t confident that he fully understood exactly what she would be helping him with, Garfiel was in a time of desperate need, having no other option but to trust his sister’s judgment. 


“Alright. Go ahead, Big Sis. Teach me whatever that is you need me to do.” responded Garfiel, a surprisingly determined look on his face. If it was for his lover and his friends, Garf would do anything. 


Frederica looked a lot cuter than usual, perhaps it was because of the effect of his rampant lust, but she smelled amazing. It was like a sweet aroma that pulled him in, but Garfiel didn’t want to admit any of that because at the end of the day, she was his sister. They were blood-related, even. 


“Stop staring at me like that, it’s not good for my heart! Could you keep your eyes closed for this, Garf? Ugh, I can’t believe I’m really going to do this for my little brother! Don’t speak a word to anyone, got it?!” she scolded him even though he’d done nothing to deserve it. 


“Alright, alright! I got it!” he responded.


“It’ll probably help if you imagine that I’m someone else instead… What was that girl that you liked again, Ram? Yeah, pretend that I’m her, okay?” she insisted. 


Garfiel’s imagination had already been vivid in his mind ever since he’d entered this state of arousal, and it seemed to be working wonders as his hardness reached the peak of its sturdiness. Frederica’s hand was trembling as she reached downwards, and pressed against the apparent bulge at the front of his slacks. He recoiled slightly from the intimate contact, as did Frederica who had just touched her brother’s penis through his clothes.


“W-What are you doing, Big Sis?!” he gasped.


“Shh! I’m Ram right now, remember?! Don’t look!” shouted Frederica, keeping his eyes closed with her left hand, while her right hand recovered and brushed against the tent forming in his pants again. 


“U-Um! I guess I was right about one part of him growing up… Garf is pretty big.. And it’s really hard…” she thought, her slim fingers trailing along the outline of his erection, gently squeezing it with her fingers, testing the thickness and the hardness as she was blown away by the proportions. It was definitely hard enough for her to jerk him off, which was her intention considering that he genuinely had no clue what masturbating meant, so Frederica was going to show him a first-hand demonstration. If she’d just resorted to telling him how to do it, she was confident that Garfiel would’ve messed up somewhere. Since he was a kid, Garfiel had always been a visual learner. He wasn’t the smartest person, so an actual demonstration was the most effective way for him to learn. 


“Is it normally this big?” asked Frederica, who couldn’t help but ease her curiosity. Even though Garfiel was the one in heat, she found her heart racing wondrously, for some inexplicable reason. She tried to empty herself of any elicit thoughts, all she was doing was helping her brother, that was what she tried telling herself over and over again. 


“Huh?!.. Ggh… Ram!...” grunted Garfiel, too immersed in his fantasy to respond to her question. Frederica didn’t mind, this time firmly pressing her palm against his junior, definitely confirming how large the object was. There was no way that he’d be able to cum from just rubbing himself through his pants, so Frederica started to carefully strip off his pants, pulling them down and gasping at the eye popping size of his boxers. She wasn’t a virgin, but she was acting just as inexperienced as Garfiel, having never seen a dick so impressively big. It wasn’t even completely revealed, hearing Garfiel’s heavy breath as he seemed to maintain his boner despite the fact that it was his sister touching him. It was truly an admirable feat that Garfiel knew what sex was, but had never touched himself before. Even if it didn’t actually make anything less weird than it already was, Frederica tried to keep her eyes closed throughout the process, feeling the lurching object lunge out at her after being freed from its confinements. She started at an uncertain two-hand stroke at a very slow pace. Starting from the top all the way down to the base of the shaft, restarting the cycle and bringing her hands back up again. Frederica’s hands were supremely soft and slender, feeling wonderful against his veiny engorgement that seemed like it was aching to ejaculate. The astounding heat that radiated off of it was unlike anything she’d ever felt, certainly not a temperature that any ordinary human was capable of producing. She had to remind herself that the dick that she was touching so profanely belonged to her younger brother, mistaking him for an attractive man that was seducing her with his fabulous cock. 


“T-This is Garf! Don’t be silly, Frederica!” she thought to herself, retracting her hand when she felt the elongated member throb intimidatingly as Garfiel groaned out Ram’s name. Although he was acting like the only person he was thinking about was Ram, at the back of his mind he knew that it was none other than his own sister that was handling his penis. They both knew that they shouldn’t be enjoying this, and Frederica promised herself that her actions were nothing more than a lesson. However, it was the most stimulating lesson that Garfiel had ever had. Forgetting about having to close her eyes, she accidentally peeked her eyes open, catching a glimpse of his extremely hard and long dick, gasping as she lost her breath at the sight of it. Even though she was groping it with her hands, it was somehow even bigger than she’d initially thought, feeling like a hard brick in her fingers. 


“Aaahhhnnngghh. That feels really good.” he groaned, completely forgetting about how pathetic he sounded thanks to his sister’s delicate touch. Frederica knew that she shouldn’t allow his compliments to entice her, but she couldn’t help but pump him more forcefully when he said that, now completely forgetting about wanting to close her eyes, and staring at Garfiel’s pleasured face and her eyes darting back and forth between that and his crotch and his meatpole. 


“Yes… This is what masturbating is, Garfiel. Remember it well, and the technique that I’m using.” muttered Frederica, licking her lips like a thirsty animal eyeing down its meal as her glazed eyes focused on his bulging erection. Garfiel nodded his head, still struggling between imagining that it was Ram was the one jerking him off, but whenever she’d talk he’d constantly be reminded that it was none other than his sister. If he were being honest with himself, after Garfiel’s reunion with Frederica he recognized how sexy she’d become over the years, her body was incredibly voluptuous and she was extremely tall for a lady. Garfiel would never admit it, but Frederica was just the type of powerful woman that he liked and admired. 


Frederica couldn’t help but think that her brother looked hot squirming around from her grasp, it was cute, even. She was a woman that liked dominating in bed, and also enjoyed teasing her little brother, too. Although she’d never imagined that she’d be teasing him in such a perverse manner. 


“H-Huh?…” panted Garfiel, feeling something wet drip onto his mushroom shaped tip. He didn’t dare open his eyes, but he felt what he assumed was saliva pour down over him, hearing the sounds of Frederica gathering it in her mouth then spitting it over the tip. 


“W-What are you doing?” he asked, frantically.


“I’m just making it faster! It feels better when it's wet.” responded Frederica, double checking that Garfiel’s eyes weren’t open as she lowered her head to get a better view of his impressive cock. Without fear that he’d notice her solicitous gaze, she openly ogled his burly cockshaft, admiring the sheer girth of it, ending with the sexy crown at the peak. Equally as admirable was his humongous balls, the sack of leathery skin carrying pouches of two enlarged testicles, in terms of his overall manhood, Garfiel was way bigger than average. 


“This is wrong, I know that! But!… I want to try it. I’ve never done it to one so big before… He said he’d leave it to me. Garf looks like he’s loving it, too. Then… I should just go ahead and do it!” thought Frederica with resolve, feeling her nostrils flare from the musk radiating off of Garfiel’s prick. It was almost hard to discern who the person that was suffering from a mating heat truly was, from an outsider's perspective. Frederica grabbed a chunk of her luscious hair that was blocking her way, and tucked it behind her ear, opening her maw as wide as she possibly could, ensuring that her teeth were tuckered behind her glossy, soft lips. Her teeth were exceptionally sharp and dangerous, meaning that performing sexual acts like the one she was going to surprise Garfiel with was risky if not exercised with caution. The young beastkin was oblivious to the pleasure he would be running into, having believed that the feeling of her gentle fingers already had been one of the greatest feelings in the world, pretending that it was Ram that was giving it too amplified the sensations he felt twice fold. 


There was no reason for Frederica to bring things this far, but it was her womanly urge that tempted her to do so. She felt like spoiling Garfiel, and having underestimated his development as a man, she never expected to be attracted to her own sibling. 


“S-Sis!~” he grunted.


“S-Shut it! I’m Ram, remember?! Don’t call for me, shut up and be quiet, Garf! Take off your shirt, it’s getting in my way.” commented Frederica, her warm breath tickling his penis as Garf couldn’t imagine why he could feel it. The bossy tone that she used reminded him of Ram and her snappy, sharp tongue. Better immersing into his fantasy that it was his crush that was getting frisky with him, other than his hot older sister. Frederica strokes helped her angle his pillar of man meat towards her descending mouth, and before Garfiel could process what he was feeling, the slick, watery cavern engulfed his broad tip in the matter of seconds. Her plush lips completely wrapped around his fat cockhead, creating a velvety, wet suction around his ridge. Garfiel moaned as it felt like his penis was basking in literal heaven. In his state of unparalleled arousal, even the slightest touch stimulated him greatly, the feeling of Frederica’s sweet mouth progressively swallowing his inches was absurd, nearly packing enough force to make him ejaculate on the spot. 


“Oohhnnghh! Oooh, shit!” cursed Garfiel, nearly shooting his eyes open due to the abundance of pleasure. Frederica didn’t need to suck him off, but the irresistible urge to sluttily fellate her younger brother got the best of her. Collecting his sensitive balls in her hands, she soothed his boiling hot nuts that were a victim of this breathtaking surge of lust, holding the fate of his world in her palms as she gently squeezed them to force those addictive grunts to escape Garfiel’s lips. 


“Mmm~... Hmmm~... Mmm~...” lightly hummed Frederica, her half-lidded eyes staring at the exceptional dick that was entering the tight seal of her hot mouth. Her tongue slipped out and expertly licked the taut smooth skin on the top directly over the slit, swirling her pink flesh slowly around the helmet several times, then proceeding to circle the ridge with the tip as she breathed heavily through her nostrils. In doing so, she was able to get a better look of how built her brother has become, noticing the fine details of his muscular, athletic frame. His infallible inches become sloppy with her saliva, pulling out his fine-tasting dick for a moment only to shower it with kisses, her pursed pink lips kissing the head lightly, and then teasing, giving it a longer kiss and staring at his dramatic reactions. 


“What an amazing cock…” thought Frederica, her tongue lifting the heavy object and twirling circles around it before inhaling him back into her oral cavern. The salty tanginess that graced her taste buds was one that she learned to fall in love with, her luscious lips leaving behind a gooey trail of saliva as she kept her eyes opened and marveled at Garfiel’s appendage, unbothered by the drool dripping down her chin, her cheeks hollowing out while she began to suck him with all of her might. Garfiel’s voice hitched and trembled slightly as he grabbed his hair roughly in a fit of perplexed exhilaration. If he were to look down at his sister, he would’ve seen an unrecognizable face that belonged to a woman gobbling his cock with thirsty fervor. The “lesson” was a mistake in the first place, and Frederica and Garfiel were soon realizing the reasons why. Even if they were siblings, the chemistry shared between the two was undeniable. 


“Ooh, god! What is this?!... It feels fucking amazing!... Ohhnnghh, what are you doing to me?!... Ggh! Ram!~” gasped Garfiel, tilting his head back in wonder as he couldn’t stop his hips from lightly thrusting upwards, his thighs incidentally smacking against her tits. Frederica acted impulsively as she took this as a cue to undress herself from the top, allowing her pendulous breasts to sway as they spilled out of their confinements, the fatty udders smushing against Garfiel’s muscular thighs as she slid them up towards his outwardly pointing prick. It amazed her that his humongous cock was somehow able to stick out from between her bountiful boobs as she squished his fuck rod in between her cleavage like a sandwich, continuing her oral assault on his veiny monstrosity as she found herself entering a heat of her own. 


“Mmnph!~ Mmnph!~ Mmnnph!” her louder, exaggerated moans escaped and provided a delightful vibrating sensation as spit slathered up against the massive bellend and the many inches that she was taking into her hollowed mouth. The throbbing organ was secured inside of it, capturing the aroused beast between her lips, bending down and wiggling her ass from side to side, lifting her enormous tits and jerking him off with fast, quickened strokes while she slobbered all over her pale flesh and meat. Her cushions of soft, supple boobage served as a landing space for her thick strings of spit, and after wildly jerking her head back and forth, bobbing it into her glorious tits, she momentarily snapped out of her lust-fuelled adventurous rush. Federica had completely become preoccupied with how sexy her brother and his breeding stick had become instead of teaching him about how to pleasure himself and to be pleasured, as if to save any semblance of dignity that she had, Frederica gulped the excess spit in her mouth and dragged her lips up and free to talk. 


“Are you enjoying yourself, Garf?” asked Frederica, attempting to alter her voice in the best way possible to mimic how Ram would speak, immediately noticing the results that it produced, hoping to have tickled his fancy as Garfiel moaned as she continued, “You have such a big dick, Garf. I’m impressed.” 


“Ggh!” 


Her tactics definitely seemed flawless at a glance, but none of her words had actually produced the intended effect. He was moaning because of her skill and the overwhelming feeling of being buried within her mountainous milkers, a development in her matured figure that he simply couldn’t ignore. Frederica was planning on making him climax faster with the entire “acting as Ram” scheme, but her younger brother knew the difference between Ram and Frederica’s voice all too well for it to work. 


“Big Sis!~” a virile moan slipped, forgetting that he wasn’t supposed to call her by name. Frederica’s heart fluttered when called, a reminder of the taboo they were committing. If trying to copy her voice wasn’t working, then she opted to resort to dirty talking with Gar on what he wants to do to Ram. 


“G-Garf… I’ll stop pretending that I’m Ram, since it’s clearly not working. Instead, why don’t you tell me what you want to do to her? If it were just you and Ram alone in this room together…” muttered Frederica, lapping aggressively at his intended piss slit that was oozing precum that lathered the tip, slipping her tongue back into her mouth to drink it and shivering at the profound taste. 


“Oooh, I wanna fuck her pretty face!” he growled.


“Do it. Grab my head and let loose, Garf. Don’t hold back, your big sis can handle it.” promised Frederica, fire ignited in her eyes as he grabbed her by the skull and pulled her head down towards his abrupt flurry of thrusts, reaching all the way towards the back of her throat after piercing the entrance of her gullet. A noticeable bulge formed on her neck as Frederica did her best to maintain the pace of her breathing, choking and gagging as her brother did whatever he willed to her body. 


“Gghk!~ Ghhkkk! Hnngghh!~” 
It was apparent how riled up Garfiel had gotten, this time her dirty talking had spurred him on significantly. His swinging balls smacking directly against her chin as she mewled and embraced tightly around the back of his thighs, humping her face flush as her nose brushed against his pubic region, moaning incessantly as his sister turned her mouth into a human vacuum, sluttily inhaling him and leaving a sheen of her shiny spit over his pulsing member. After dishing out a pair of thrusts that were too deep, Frederica coughed and had to separate herself from his enthusiastic cock in order to breathe, spitting all over the bed as she held her neck, recovering from the abuse that it had just received. Before Garfiel had the chance to kill the mood and ask if she were okay, Frederica gripped him tightly and slapped his gigantic rod against her flexed tongue and cheeks, before nestling it in between her tits, smashing them back together and making a tight area of cleavage for him to reside in. 


“What positions would you like to fuck Ram in, hmm?” asked Frederica in a sultry tone, returning back to form and giving him an erotic, slimy paizuri combined with her staggering fellatio. 


“Uungghh! I want her to ride me cowgirl! I want her facing me when she’s doing it so we can kiss, then I want her to turn around to see her nice ass!” moaned Gar, returning back to his prior fantasy from earlier on in the day, his imagination running wild and unrestrained as Frederica created the perfect environment to unleash every single one of his salacious desires and inhibitions. 


“Is that right? You want Ram to ride this huge dick of yours, my hot little brother?” teased Frederica after releasing him with a wet plop, then returning to slip him in and out of her full lips, saliva coating the entire lower portion of her face. The messy cocksucking, tit-stroking session produces an excessive amount of saliva. 


“Yess! I want her to ride me until I cum inside of her!” he gasped.


“Hehehe, how naughty!~ Do you want to get her pregnant? How many children do you want to have with her?” asked Frederica, a question that completely sent Garfiel over the edge of sanity. A flood of unhindered thoughts flowing through his brain as he imagined breeding Ram with several kids, making Frederica’s balloons of titmeat produce resounding slapping noises as he humped it, possessively palming his older sister by the head and surprising her when he forced her head down further onto his protruding dick, wanting her to swallow as much of it as she possibly could. 


His fantasy devolved further and in the blink of an eye, thinking about all of the dirty thoughts that he’d ever had, wishing to live them out as inconceivable pleasure showered his junior. Garf imagined his own mother being there with them when he’d finally get to fuck Ram, she was one of the most important women in his entire life, and he imagined her encouraging him in the same way that Fredrica was now, actively telling him what to do, and motivating him to fuck Ram as best as he possibly could. His vivid imagination served to make his beastly penis swell with excitement, somehow his perverted fantasies reaching rock bottom as his incestual oral sex that he was enjoying with his sister influenced him to imagine fucking and knocking up his own mother pregnant at her insistence, a curious thought that passed his mind after he’d finished drilling Ram in his daydreaming. A twisted,wild thought that he’d never think about if he retained any form of his mind's rationale. 


“B-Big Sis!~ I’m!-… It’s coming!” stuttered Garf, unsure of how to deal with the incredible surge of stimulation that he’d suddenly found himself relishing in. Frederica’s lukewarm breath and her soaking wet tongue flicked the winking slit of his throbbing erection as she backed away at the exact moment that heavy spurts of dense, viscous cream shot straight out of his engorged head and splashed all over her face. Frederica yelped as his violent release was far messier and potent than she could have ever anticipated, not expecting to take a shower in her younger brother's sperm when he’d called her over for a “talk”. It ejected out of his proudly beefy cock with tremendous force, the copious amounts spraying directly into her half-opened mouth, allowing his older sister to savor his unique taste, closing her lips and reflexively swallowing what landed inside of her mouth, as the barrage of cum splattered all over her gorgeous face, looking down onto her ample bosom and seeping into the crevice of her pale, jiggly titties. A dirty, slight moan escaped out of her lips, and Frederica tilted her head back and gulped her brothers milk down, swiftly swiping her tongue around her lips to clean herself up and taste more of his seed, a delicious chill coursing down her spine as they both panted heavily to catch their breaths.


“What just happened?!” was a mutual thought that they both shared, overcome with their natural mating instincts. They were family, but perhaps their time separated had diluted their perception of each other, recognizing how physically drawn towards one another they truly were. Frederica preferred big cocks, and she’d never think that Garfiel was as hung as he was, having the time of her life working his huge tool with her mouth and tits, even more shocked by the flavourful taste of his semen. The thick pungent smell intoxicated the blonde beauty, her head swirling from the heavily scented, tantalizing liquid. 


“Oh, Garf…” muttered Frederica, her face painted white in the color of her brother's seed, dewy eyes as she stared at his appendage with such admiration. After blowing a load of that immaculate size, one would expect that his penis would have completely deflated. And yet, Garf was still as hard as a rock, having opened his eyes and taking in the sight of Frederica’s hanging tits, her beautiful erect nipples, seeing her pretty face doused in his man fluids. Frederica found herself possessed by her own lustful demons, triggering her own mating heat at the same level as Garf, a deep blush on her cheeks as she growled and sniffed his cum-spewed tool, humping her own fingers at the aroma of her brother's spunk. 


“Big Sis, that was so sexy!~… Ugh, you’re!~… You’re so!~…” hissed Garf, receiving a harsh whiff of Frederica’s sopping quim, her pussy was drenched with her own juices of anticipation, her mind and body consumed by libido, he smelled how extremely fertile she had been in this moment. Garf wasn’t close to being satisfied, if anything he felt even more painfully aroused after what Frederica had just done for him, he was still fired up and raring to go. 


“G-Garf!~… I’m so horny! Ha!~ Haaa!~” mewled Frederica, swimming in bliss as she rubbed her face with an overjoyed expression on her face. 


The siblings were quickly losing control, at a stand-still as they didn’t know how to describe or express what they were feeling. Some part of themselves understood just how wrong this all was, but at this current point in time they didn’t care. Frederica and Garf felt like they were transforming into a pair of lustful, carnal beasts. Before they could say anything more, Garf pounced on his beautiful, busty sister, tearing off the clothes in his way, ripping them to shreds with his monstrous strength, almost as if he were offended by their existence, like they had no right to hide how precious and pristine Frederica’s body was. Garf was acting like a ravenous animal, nearly drooling from the mouth as Frederica winced slightly from his dominant approach. There weren’t many people that could’ve forced her down like this, and the change of pace caught her off guard for a moment. 


“Big Sis, I want to fuck you! Let me!” he begged, clumsily pressing his dickhead against her pussy lips, missing the mark and unable to penetrate her as he rushed himself inexperiencedly. Frederica took this opportunity to regain control, taking the upper hand by utilizing her unbelievable strength to flip their positions around, and this time she was the one on top of him.


“Not so fast, Garf. I am the older sister, I get what I want first, okay?~ You can lie down for now, and you can leave the rest to me. I’ll give you your chance soon.” promised Frederica, wiping her face with the back of her forearm as she pinned Garfiel down, licking her lips like a demoness. Their primitive desires to fuck one another toppled over any sense of guilt or shame, and Frederica demonstrated just how aggressive she could be, when she encountered a sexy cock that enticed her, even her personally would change. Normally a caring, soft-spoken lady, Frederica showed her raw, visceral side as she shifted herself in between his thighs, pushing her meatpole against her quivering snatch. From Garf’s point of view, he could see everything. Frederica’s porcelain skin, her soft and yet athletic figure, extremely developed breasts and a nice pair of breedable hips with a slender waist and a flat belly with her abdomen slightly visible. She held his hands that were sliding up against her sides, fascinated by her body, although it felt like he was staring at her in slow-motion, Frederica was hurriedly stuffing herself with his behemoth cock. Taking the plunge with a hiss and a scream, inhaling a sharp breath as she felt her tight vaginal tunnels split apart to the shape and thickness of Garf’s sex. A disgruntled face as she forced him in with greed and haste, bouncing up and down his lap as she made her younger brother howl in jubilation. 


Garf was trying everything in his power to assume control over his sister, there was something exhilarating about being the one on top of a strong, powerful woman. Unfortunately for him, Frederica’s strength and sexual prowess was far beyond that of the average girl, immediately finding himself on the receiving end of palpable pleasure, practically yelling his moans as he felt his various inches disappear into the inflamed, scorching hot pussy lips that consumed him whole. It was fascinating that such a small hole was capable of fitting such a large object, his hulking member hugged tightly by her moist pussy, feeling her folds expand bit by bit as they released a simultaneous whimper. Frederica was going primal as she allowed more of his length to invade her, instead of Garf being the one fucking her, she was the one shamelessly using him like a meat dildo. Her electrified cunt and his pumping hot cock were prime for a crazed fucking. Her coiling insides felt overwhelmingly hot to the touch, the slippery folds allowing him to slide in and out with ease, although a lot of the movement was Frederica slamming her fine ass down onto his lap.


“Uungh!~ Uungh!~ Garf!~ Aahngh!~ Mmnngh!~” squealed Frederica, her fingernails scraping against his shoulders as her big butt wobbled behind her as it shook from her erratic movement. She wasn’t the type to prefer a slower-paced sex, believing that was boring, loving nothing more than steamy fucking at blistering speeds, grinding into him like a horny rabbit, her tongue lewdly hanging out of her mouth as Frederica’s eyes went cross-eyed, the siblings moaning as they reveled in their amorous desires. It was difficult to choose between the two on who was feeling better, Garf was getting off from being fucked by his older sister, and Frederica had never been speared by a bigger, fatter, stronger cock in her whole life. 


“Ahh!~ You’re so wet, Big Sis!~ That’s fucking hot!” commented Garf, his voice sounding deeper than normal as he growled, staring down at Frederica’s enticing, dampened pussy lips, seeing the stream of vaginal essence coating his shaft as the bigger woman held him down and skewered herself all over his daring rod. It almost felt too great to even think, the big breasted beast women’s tits flopping against her chest, burying his prick all the way to the base as they started to make slutty, airy pops on her way up. Garf shook his head in disbelief of the unbridled pleasure he was feeling, reaching around and cupping her round buttocks in his fingers, squishing the flesh as he palmed both buttcheeks within his hands, causing him to jerk upwardly with his hips punching up against her womb as Frederica’s whining moans echoed throughout the room. 


“I’m going to cum again, Big Sis!~ You’re way too tight!” praised Garf, lifting her slightly with his back arched as responded to Frederica’s enthusiastic thrusts, rolling her hips against his pelvis. The sex-frenzied siblings were insatiable, hearing Frederica’s wanton moans sent him over the edge as Garf was the first one to cum, hardly even thinking of the repercussion of filling his sisters perfect pussy up with a surge of scorching hot semen. Frederica looked like a woman possessed as she shuddered uncontrollably, squirting out of her clenching channel was her own mixture of love juices that trickled down with Garf’s buildup of jizz. It came streaming out of her as Frederica slowed down the speed of her bobbing, feeling Garf pull and knead her doughy flesh as he secured a possessive grip over her bum. 


“Oh, Garf! You made me cum so hard!~” admitted Frederica, wiping sweat off of her body, the two horny beastkin were sweating unbelievably with their body heat rising to extreme temperatures that regular humans would consider dangerous. Garf’s mouth went dry and he felt reignited with a jolting shock of arousal when his eyes saw the spillage of their mutual residue coating his groin, it was the most erotic thing he’d ever seen, adding onto the flurry of emotions he was feeling was the recognition and self-admittance that he had just inseminated his sister. 


Pumping with adrenaline, he felt goosebumps scattered on his skin as every tiny strand of hair rose, feeling almost as if he were being controlled by another being, having never been coaxed by such a furious impulse. With Frederica recovering and perhaps assuming that extracting  two loads out of him was sufficient enough, Garf took the glimmer of opportunity that presented itself to carry her higher in the air by supporting her buttocks, and then rolling around to capture control of their bodies. Still wedged deep within her flooded canal, Garf sent his shapely sister into a frenzy by pounding her uber-tight gash with reckless abandon as he somehow managed to contort both himself and his sister into a picture perfect mating press. For a boy that was previously virgin, he certainly wasn’t fucking like one. Undaunted lust carried him throughout his endeavors as he pillaged the alluring beauty with sharp snaps of the hips, they held no pattern as they smashed against each other - it was all reckless animalism, it was carnal copulating at its very finest. 


The soft balloons of flesh cushioned and bounced against his chiseled chest, his slams becoming wild and unrestrained as he grunted profusely, back and forth he heaved, thrusting on within her creaming vagina wilder and faster. Every ache, soreness, throb, and pressurized sensations that they felt as a result of their sexual intercourse was escalated from their natural mating instincts reducing their means of restraint. The pleasure building up hotter, stronger sensations that became infallible. Garf pushed on needier against Frederica, feeling her arms latch around his broad back, the position they were in was far more intimate than the other, their faces were dangerously close, noses brushing together as Garf felt his heart tremble and palpitate at absurd speeds. For the first time that night, Ram had completely exited his train of thought, instead he was consumed by his gorgeous, fuckable sister. The feelings they were producing for each other were heavenly, and he watched as she thrashed and heaved beneath him, already about to hit her peak as she cried and sobbed gently, being stuffed by the manly cock left the needy girl on cloud nine. 


“Ggrr!~ Gghhkk!~ Hnnngh!~ Hhnngh!~ Fuck yeah!... Shit!” roared Garf, taking pride in knocking the oxygen out of her system, hearing her mewling moans and her orgasmic facial expressions made his chest swell with pride. When beastkin would mate, it was common that they would try and leave their mark on their spouse. Garf fought the urge to leave a hickey on her neck, his body was moving on its own as his teeth grazed against her exposed nape, and it took a final moment’s of recollection to stop himself, his mind still wasn’t made up, although they had already far crossed the line of return. His fat, hard cockhead brutally pummeled against her cervix with every one of his lurching shoves, degrading Frederica into a moaning mess as she groaned her compliments through her writhing. He was like a locomotive picking up speed, somehow exceeding his output after every handful of thrusts, making her hips rock back and forth against his slippery snake as it sounded like the bed beneath them was just barely avoiding collapsing from their combined weight. The mattress sunk in the space they were lying on as Garf’s empowered fucking packed a ridiculous amount of muscular strength behind it, thankfully Frederica’s pussy was plump and strong, and was capable of handling a beating. She spread out for him even wider, surrendering herself to his unyielding lust. 


There was frequently less talking that was being replaced with guttural, depraved noises. Garf was penetrating her deeper than she’d ever thought possible, it felt like his immense spear could’ve pierced through her at any second, the mouth of her womb opening for him as there was still semen seeping into the aching, glorping hole. He allowed all of his worries to rest on the shoulders of his sister, who in turn rewarded him with her fabulous cunt, driving his stake towards somewhere impressively deep within her lower tummy, her legs having spread as wide as they possible could, and now locking around Garf during their hectic entanglement. He grunted feeling her claw into his skin, leaving scrape marks on his naked back as Frederica coped with the thrilling feeling of having a giant dick submerged within her velvety walls, her molten heat sucking his advancing cock deeper into her body and trying to trap it by squeezing around it with her legs flexing him in a hold, clinging onto him for dear life as Garf’s lips were pressed right above Frederica’s as they moaned onto each other’s face, the two entering a near empty-headed state driven purely by their instincts, colliding wondrously with animal magnetism. 


“Garf!~ Garf!~” boisterously moaned Frederica, calling her brother’s name as he took her to a trip to Heaven, screaming his orgasm into his mouth as he didn’t stop himself from kissing her square on the lips. Having a close up of her face, he could see how intense it’d become, so enrapt with arousal and ecstasy as her lips quivered, the fresh sensations escalating into his core as he explored every area of her vaginal cavern that expanded for him. The pole rocketing its entire length within her grasping hole, humming against her lips as his own orgasm boiled, their moans turning feverish as their leftover cum served as heavy lubrication as Frederica shook in fear of herself and from being in sexual need. They were heading towards another impending orgasm, and none of them bothered to stop, pushing back against Garfiel’s lips with more emphasis as she slammed her pubic bone against his, desperately trying to milk him for what he was worth. The half-siblings never broke eye contact, with Frederica’s soaking wet clit looking enchanting as she glanced down towards their connected halves, waves of exhilaration exploding out across her body, detonating as she’d experienced domination like she’d never had before. She had taken many of Garf’s firsts, and they made the exchange equal by having given one of her own to him. There weren’t many men capable of manhandling Frederica the way that Garf just managed to do, and that was precisely why her voracious pussy devoured him whole as they reached their second explosion of cum of the night. 


“Ooohhnngghh, yees! Mmnmnuahh!~ Mmmnnn!~” cried Federica, feeling his cock burrow into her womb as he directly fired off spurt after spurt into her baby-making areas. Her insides rejoiced and churned and contracted tightly around his colossal cock, their groin spritzed in vaginal juices and glazed with sperm. The miasma of passion completely consumed them, with Garf’s boundless stamina coming up victorious on top when he’d noticed how Frederica’s strength had faltered after these consecutive vicious orgasms. 


“Mmnph!~ Mmmngh!~ Again?!~” shrieked Federica, an empty void within her canal when Garf struggled to pull out of her seamlessly but only to readjust himself into another position. He didn’t even give her a moment’s reprieve to breathe, already picking her up and surpassing even the performances in his dreams, although his fantasy was of Ram, the reality was that he wanted nobody else more than his own sexy sister. Worn down and in the need of recovering, Garf had her placed on all fours in seconds, and if mating pressing her against the mattress didn’t fulfill his need to dominate her, then what he was about to do, definitely would. He retracted his arm back, and turned his palm to openly face her thick, curvy bubble butt, driving it down onto her exposed rear flesh. 


“Eek!~ Ouch!~” yelped Frederica as Garf constantly drew his hand back and collapsed it onto her pliable rear, the meaty slaps delivered to her heart shaped rump, callously grabbing and pulling on her hair to yank her head backwards, proving to Frederica who the dominant mate truly was. After groping her when she first rode on top of him, Garf knew that he wasn’t going to sleep without having a taste of her juicy, delicious ass. The skin was extremely smooth and creamy, and because she was so fit the shape was flawless. He loved the way that her heavy tits would sway from left to right as he spanked her as if he were punishing his older sister for having such an obscene body. At the end of the day, it was her that seduced him, and after having his fill of watching his almighty sister that would always scold and tease him since they were young crumble from his devastating spanks, he decided to slip his gargantuan tube of cockmeat back inside the sleeve that it belonged in. Grunting as he grasped her womanly waist directly above the curvature of her ass, not after slapping her bare naked butt again for good measure, running his hand over the jello-like roundness, with Frederica unexpectedly mustering the remaining ounce of strength that she had to impale herself back onto him, her tight, gooey hole taking his crushing strokes as his masculine hips left her abundance of booty flesh flattening at the apex of his incredible hammering motions. After enduring two rounds of breathtaking, gut-crushing sex, Frederica was already violently exploding all over his engorgement, feeling the backed up, tar-like sludge still working its way towards being soaked within her magnificent hole. Pushing up the jizz that was hanging around in the nagging depths of her pussy, watching with glee as Frederica’s thick asscheeks rippled in waves to the tune of his fervent thrusts. 


“Uunghh!~ I can barely take it anymore, Garf! You’re fucking the shit out of me!” cursed Frederica, delirious with euphoria as her eyes went half-lidded, his iron rod sawing in and out of her cunt from the back as he repeatedly bumped against her ass, causing her to lean forward and practically topple forward each time as the balance that she maintained with her arms were unreliable at best. The bliss that she felt reached every limb of her body, lunging back towards his crotch as he rammed straight back inside of her throbbing labia, lining herself up perfectly to best receive his unstoppable erection. He completely seized control of Frederica who’d never once been the bottom, they were fucking like animals, true to their blood as her arms gave out, falling face first onto the mattress with her huge boobs squashed against the bedspread, the ample pool forming underneath her as she rested her head on her forearms, squealing in an uncharacteristically high-pitched voice. Garf knew that while Ram was slender and had a pretty nice rack, she paled in comparison to the overall voluptuous figure that Frederica boasted, seeing all of her lovely features jiggle profusely as he clapped her booty as hard as he possibly could, tugging on her hair and holding it like a rein.


“Damn right, I am!~ Take that!~ It’s your fault for having such a naughty body, Big Sis!~” growled Garf, bearing his fangs as he gritted his sharp teeth, closing his eyes for the final bombardment of thrusts as the plentiful downpour of their bodily essences gushed out of Frederica’s gaping hole, having somehow survived several rounds of Garf’s intense, brutal fucking. She kept her head down as a sign of submission, her generously proportioned dump truck absorbing the impact of his burst of thrusts as he hammered away at her clapping flesh, dumping an ungodly amount of seed within his sister's fertile body, coming out on top and officially assuming the role as the dominant mate. 


----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


The following afternoon…


Frederica and Garfiel slept like logs after fully alleviating themselves of their rampant hormones the previous night, having long lost track of time and fucking away throughout the dusk of night all the way until sunrise. The room stunk of the pungent aroma of raw, unfiltered, beastfucking. They coincidentally woke up around the same time, with Garf yawning as he felt the warm breath of a woman tickle his neck, and Frederica awakening with a heartfelt smile on her face, beaming with fulfillment. 


“Ohh… I slept well.” Garf spoke to himself, before turning his head after wiping his eyes, flabbergasted by the sight of his sister cuddling against him completely in the nude as he flinched and backed away in response. The soft, squishy parts of her body were rubbing against him, and his morning wood twitched in excitement. Frederica eventually came to, and met eyes with Garf who was blushing adorably. 


“B-Big Sis?!…”


“Do you have to be so loud in the morning, Garf?…” she yawned, blinking a few times before jumping slightly herself, only now registering that they were sleeping in the same bed, smelling like sweat.


It took a moment as the two siblings were reminded of what they’d just done. Not once, not twice, but several times. They fucked like the last pair of animals that existed on Earth. 


“I-I’m sorry, Big Sis! This is all my fault, because I couldn’t control myself from my own instincts! Damn it! We did it so many times too!…” expressed Garf, truly apologetic for his actions, feeling rather guilty about the entire debacle.


“It’s okay, Garf. What happened between us was a little bit scary… But… I didn’t dislike it.” she responded, flashing Garf a wink as his soured mood immediately switched after her positive response.


“Even if it happened so spontaneously, we both enjoyed ourselves, didn’t we?” 


“You’re right, Big Sis… I did enjoy it. I didn’t know that sex felt so good, and you’re body felt amazing… I couldn’t stop cumming inside of you even if a gun was held to my head.” he openly confessed, gulping audibly as he took the time of peace to scan her awe-inspiring body. Frederica giggled at his completely honest response, it was so like and unlike him at the same time to say what was on his mind before even thinking about it.


“I’m glad.” she responded with a bright smile, rubbing Garf’s cheek as it turned red and flushed.


“S-So where do we go from here?” he asked.


“Hmm. I guess we could either accept what happened tonight, and move on. Or… We could take the next step, and bring ourselves somewhere even further.” 


“Even further?”


“Yes… We can become each other’s mates.” said Frederica, in such a calm, sultry tone that Garf found extremely sexy. 


“…”


“I’m a man who believes that action speaks out better than words, so I’ll let my dick do the talking for now.” boasted Garf, sitting up off the bed and crawling over towards Frederica’s silky legs, watching as they splayed apart for him.


“But first… I better return the favor for last night.” he growled, diving face first into the pillowy, recovering nether lips of her immaculate, majestic pussy. It tasted phenomenal, with the right balance of tanginess and sweetness, and a bit of sweat as he performed cunnilingus with his adventurous tongue. He sucked loudly on her erect clitoris, teasing her tiny hole by jamming his thick tongue inside of it, hungrily eating out her appealing cunt as Frederica moaned happily in response. 


Garf could’ve been at it all day if he wanted to, finding her taste to be more than pleasant. However, there were more pressing matters to attend to. After successfully bringing her to a quick orgasm, he warmed her up for the real deal, and after slurping up her honey-tasting juices, Garf mounted his caring, kind, lovable, curvaceous, and slutty sister. In order to answer her previous question, and to seal his response, Garf romantically swiped the silky locks blocking the view of her face, closing his eyes as he leaned forward to plant a warm, wet kiss on her lips as they sealed them together, timing it perfectly with his penetrating cock. Frederica whimpered seductively into his lips, embracing him from behind the neck as they kept smooching and making out together, with Garf expressing his longing desire to stay with her. Their smashing of lips contained so much emotion behind them, as they completely abandoned and forsaken any prior conceptions about relationships between brothers and sisters, no longer caring about what others thought. The person that mattered most to Garf was Frederica, and they made incestuous love in scintillating fashion, turning that bed into their breeding nest. What he didn’t put into words, he showed her with his lips. After tugging on her bottom lip with his teeth, he explored every region of her orifice with his tongue, shoving their faces together as they drank each other’s saliva. After taking a moment to breathe, Garf slipped his tongue out of her watering mouth, and roughly suckled on her neck, lightly digging his teeth on her skin, and then tenderly licking it with his tongue after leaving a mark. 


“Garf… Oh, Garf! I love you!” moaned Frederica, on the verge of tears of happiness. Capturing his lips once more as their tongues dueled, Garf responded by pistoning the full length of his manly breeding pole inside of her mushy, ovulating pussy. They weren’t fucking for the sake of it, but with a goal in mind, one that would forever seal their relationship together. Garf impregnated his older sister, erupting with the most dense, superabundant amount of potent seed inside of her suctioning womb. Making doubly sure that they would bear children by casting a strand of healing magic that would guarantee that his sperm makes its way towards her eggs. 


“I love you too, Big Sis.” 


The end…













