F-Series Ch.1 - Claire

Story by LibraryOfDebauchery on SoFurry

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#1 of F-Series

Written by

Very minor editing by me

F-Beasts are inspired by Gideon's "Fuck Beasts" which you can see an example of here https://imgur.com/L1CSxSj


Syn was an only child, left alone for the most part even at a young age by his parents. He was allowed to do whatever he wanted for the most part. Any games he wanted he could get without issue. Schooling wasn't really a big deal as he was home schooled by an advanced AI. Syn thought he wanted company, he wanted more than an AI to keep him company. He wanted his parents to be home... but he knew that wasn't gonna happen. He hoped but knew it wouldn't, it was a harsh and cruel lesson to learn at such a young age. He at least had access to many forms of entertainment, he could buy whatever he wanted to keep himself busy.

Though one day he came across a rather unique advertisement, it was for F-Beasts and F-Toys. F-Beasts being creatures genetically created that were made for those that wanted more than a pet. They were often canines or felines that had high levels of intelligence, could speak and were infused with their masters or owners DNA. Technically speaking, making them the offspring of the said owner or master. They could be designed for a great many things but most got them as sex toys. Often by those with large sums of money that didn't want to deal with a partner that could take their money after a divorce. F-Toys were very much the same, though instead of being beasts like canines and felines. They were humanoid, it was very hard to tell them apart from humans in fact and their creation brought out a lot of ire from most. Because they weren't considered human, nor did they have rights. Many S-Toys that came to be, where modeled off children which caused a great deal of moral debate.

Though none of this really mattered to Syn. Being obscenely well endowed and extremely horny for a seven year old. He knew what he wanted at the moment. He wanted a companion and one that would slobber all over his dick or take his cock balls deep while moaning for more. This desire didn't take long to have fulfilled, he ordered one F-Beast and One F-Toy. The F-Beast being a large canine bitch, while the F-Toy was a small pair of small black human toddler like. When they arrived, Syn was very happy with what he had gotten. Though the delivery woman was very surprised at the sight of a child answering the door and accepting the package.

She worked for the company that made the beast and was herself a S-Toy as it was cheaper to make her and feed her and kept deliveries more secure and private. Though Syn knowing this made sure to take her for a run as well. Needless to say, Syn had made sure to have her give a very hands on display on how to handle the pair of F-Toys before guiding him on how to take care of his F-Beast. Syn knew exactly how to do both but he wanted a reason to fuck her and give a hands on demonstraion as sexual release was something Syn was more or less addicted too. Needless to say he had a good time and he wondered if he'd get a chance with another one like her. Only time would tell on that though.

That was weeks ago and Syn now was passed out and the sun was rising into a new day after a intense night of fucking both of his new toys. While also having ordered others, it would take several weeks for them all to be made and delivered. Being sent one at a time but for now he was gonna enjoy himself as he felt a warm sloppy mouth across his massive cock.

Syn slowly woke up with a groan that turned into a moan. As the feeling of a tongue running up and down his big fat cock after it having engulfed in a tight warm muzzle. It was hard to open his eyes as they shut tighter than when he was asleep. He finally managed to open his eyes. He caught sight of a furry mane and ears. He bucked his hips as he moaned out louder looking down the large F-beast bitch he just got the week before.

Syn looked down at the canine laying between his legs with her paws around the base of his cock as she ran her tongue up and down his cock swirling it around the head cleaning off the dripping pre-cum that gushed from the meaty tip. Her massive pair of breasts cover the lower half of his cock with nearly a foot of his massive pussy breaker exposed.

"Oh dang, Claire! You must be hungry this morning aren't you girl?" Syn worded out between moans out as his cock throbbed and spat rope of per-cum into the air and splattering down across her face. She opened her muzzle a bit and let the pre-cum drizzle in. Taking the clear sap like liquid down her throat and into her core. She wanted something thicker and creamier though. It wouldn't take long for her to get it, but she did feel her master's tiny hands start to explore her chest.

Syn reached down and grabbed her thick nipples between his fingers and pulled on them making her moan out and swallow his cock until her nose if buried in her cleavage completely hiding the entirety of his cock within his needy bitch. Syn started to pump his hips, thrusting his fat cock further between Claires tits and warm doggy muzzle. He could feel the all too familiar sensation rising from his groin. It didn't take long after that for him to start blowing his massive load of fuck juice down her throat. Claire muzzled got farther down his cock and inbetween her own tits. Her throat bulged every so often from taking the large creamy load.

Syn lets go of her fat nipples and pushes her off his cock as it throbs and twitches drooling a steady stream of per-cum already. His refractory period being almost non existent and he was already dripping pre-cum for his next round with his needy bitch. Though he wanted something a bit more, he was a greedy child after all.

Syn quickly moved around his bitch got Claire to roll over onto her back. He got on top of her furry belly and the size difference was extremely clear. Syn a seven year old boy was able to fully sit on her and still have room to stretch. Claire was easily the size of a small or medium sized horse.

Having situated himself on her belly, his cock now laying between her massive tits and her look of lust. It was all Syn needed to have those massive fun bags. Syn started thrusting his cock between her big fat tits, the warm confines of her breasts was extremely nice. As he started thrusting his big fat two foot long cock back and forth between her tits, Claire began moaning loudly as she felt her breasts being man handled or well in this case boy handled. She could feel Syn's cock pulse a bit harder with each thrust as he built up to another release.

It didn't Syn long after that before he was on the edge of release once again. He doesn't stop thrusts and let out a long, loud moan as his cock throbs growing even harder, longer and fatter before a massive jet of hot cum shoots form it splattering against his headboard. She wraps her tongue around his cock and strokes it as he unloads his balls. He pumps out rope after rope of cum painting his headboard until his orgasm fades and the last of his cum drools from the fathead. He scoots back off her and sits on the bed looking at her on her back.

He looks from her big fat tits across her belly and the number of nipples lining it to her dripping wet pussy and smiles at the thought of when he arrived the day before.

Syn it's there on the couch looking at the dog that was just delivered. He ordered her from a website a few weeks earlier. He can't help, but smile at the massive set of tits hanging between her front legs with thick nipples capping them.

"How may I serve you, master." the dog asks looking up at Syn with a canine smile.

"Turn around, Claire." Syn says feeling his crotch throbbing with naughty ideas.

Clair turns around, lens down and lifts her butt higher while lifting her tail showing off her big fat mound with a drop of pussy juice hanging from it. Syn's mouth waters at the sight of a big fat canine pussy easily several times bigger then most he's seen. "Come and claim me, master. Fuck me and pump your load in my and make me your bitch!" She moans out wiggling eh butt side to side as her pussy drools even more pussy juice.

Syn licks his lisp at the sight of her big fat dog pussy. He quickly moves behind her on his knees. He leans down and runs his tongue across her pussy making her shiver and moan out. He licks at her mound a few times then traces the lips before peeling them apart and exposing the dark pink inner flesh. Put pussy contracts and pussy juice pours out of it in a steady stream for a few seconds. He leans forward and catches some of her juices on his tongue and moans at the taste and how his cock is in his pants. He quickly stands up and opens his pants and lets them drop releasing his foot long cock making her gasp at the sight of his massive fuck stick.

"Claim me, master. Make me yours and only yours!" Claire moans out even louder, shaking her hips side to side. With a moan Syn drops to his knees behind and slaps her ass with his cock a few times before pressing the dripping head of his cock against her mound.

"Claim me, master. Ram that big fat fucker up my pussy and claim me. Fill me with every drop of cum you have. Darin your balls in my and give me your pups!" Claire begs pushing back against his rubbing her big fat mound against his cock head.

Syn grabs her wide hips with one hand and holds his cock in place with the other "take it, bitch!" Syn growls ramming his hips forward sinking half of his cock into her pussy in a single thrust making her back arch and her pussy clamp down around his cock like a vice before starting to ripple and contract around his cock as she explodes in orgasm.

"Thank you, master. Keep going, don't stop until you're balls deep in me!" Claire cries out as her body is crushed under wave after wave of pleasure. Her pussy grabs Syn's cock like vice and milks it trying to suck the seed from his big fat, cum filled balls.

Syn slowly pulls back and rams back into her sinking deeper. He starts fucking her with long deep strokes teasing her with slow pulls and hard and fast rams into her. Nearly a minute passes before the head of his cock hits her cervix, he pulls back and rams back into her. Her pussy contracts around his cock nearly stopping his movement every time he hits her cervix. He gives her a few more pumps and yanks his cock from her pussy in a single thrust "Rolls over, bitch." he tells her slowly stroking his cock.

"Master!" Claire cries out feeling his cock suddenly disappear from her pussy leaving her gaping open with cool air from the room filling the void teasing her and making her crave his cock even more. Hearing the command she quickly rolls over onto her back and watches as he rams his cock back into her pussy. Her eyes shut as she explodes in an even stronger orgasm. When the head of his cock slams into her cervix he leans forward and captures a thick nipple between his lips and sucks on it making her hump against his ever harder. H sucks on the long, thick nub and moans out as milk sprays against his tongue. His cock throbs even harder than it already was and starts to ache as it grows even harder seemingly growing longer and fatter.

Claire cries out as her body is hit with the strongest orgasm yet "Claim me, master. Claim me, master, claim me master!" she begs humping against this trying to force his cock even deeper into he. The head of his cock grinds and bangs against her cervix until she feels a pinch of pain that's quickly drowned out by pleasure as the head of his cock starts stretching her cervix open. Every thrust he makes opens the tight entrance to her womb.

"Fuck, fuck, fuck, fuck!" Syn pants feeling her pussy convulsing around his cock and pussy juice gushing from her pussy every time she orgasms. The taste of her milk makes him suck even harder on her nipples drinking even more milk from her big fat tits. His eyes shoot open when he feels her cervix opening around his cock head. He freezes for a moment caught off guard by it then starts fucking her as hard as he can trying to get even deeper. Half a dozen thrusts later the head of his cock pops through her cervix and he feels her tight womb grab the head of his cock stopping his thrusts in their tracks as her body seizes up around him. Her paws grab him and pull him close as her deepest part if violated for the first time. She stops breathing for a few moments at the unexpected penetration. He rams even deeper stretching her womb out even more.

"Fuck!" Syn suddenly cries out feeling his cocks jerk upward and the tingling pressure around the base of his cock hits a peak. He rams his cock balls deep sinking the last inch of cock into her and bites down on her nipples as he unloads the first massive blast of cum into her womb. The first jet along inflates her womb like a balloon held back by his cock acting like a cork. More and more cum fills her belly until it starts bulging out around his cock. It takes nearly a full minute for his orgasm to fully die down, leaning both of them panting and gasping for air as he struggles to recover from a massive simultaneous orgasm. Both of them nearly passed out from the pleasure.

The 7 year old boy slowly pulls his cock from her pussy. The head pops free from her cervix with a gush of human seed following it. He slowly pulls back inch after inch until the head catches on her stretched out pussy lips and a gush of pussy juice and cum follows it coating the shaft. He moves around in front of her and rubs his cock against her nose. She opens her mouth and runs her tongue along his cock several times cleaning off the mixture coating it.

"Good girl!" Syn moans softly feeling her soft tongue running along his shaft. His cock quickly reverses course swelling back to life looking bigger than he's seen it before.

Syn quickly straddles her chest and buries his cock between her big fat tits and pinches her nipples before pressing her breasts together around his cock and starts pumping his thin little hips back and forth. He moans out as his cock slides back and forth between her soft mounds. Her nipples leak milk as he drives his big fat pre-teen cock between her tits. He squeezed his mounds and made milk spray from them.

"Cum for me, master. Cover me in cum. Mark me as yours." Claire moans out using her front legs to press her breasts together around his thrusting cock. The boy's massive cock sticks out between her breasts dripping pre-cum on her neck and chin. She looks up at him nuzzling his thrusting cock.

Syn cries out as he drives his big fat cock between her massive tits and lets out a massive jet of cum that fires clear past her head and lands several feet in front of them. Claire quickly takes his cock between her lips and gags at first as the next jet floods her mouth and she swallows as fast as she can. Before he can swallow all the cum filling her mouth another floods her mouth and starts running out around his cock. She gulps down his cum until he falls back on her belly panting as his cocktowers above them.

"Thank you master. I'm all yours now. I'll only fuck and suck you unless you tell me otherwise." Claire says once he gulps down the last of the thick, creamy cum filling her mouth. She swipes her tongue across the head of his cock as it starts to slowly soften falling down across her tits with the head within reach.


Several days have passed since Claire arrived and the two hace fucked almost constantly. He's learned to control his orgasm and makes her beg for his cum before he gives it to her. She taught him how to eat her out and keep her on the edge of orgasm until she can't stop whining and begging until he gives her the last bit she needs to explode and shower him with her pussy juice as she squirts like a broken faucet.

The next day Syn wakes up to Claire laying next to him with her head in his crotch licking his soft cock coaxing it to life. His meat slowly swells longer na dfatter by the second. Reaching a foot long and thicker than his wrist it towers above them.

"Fuck me master!" Claire moans when his cock is rock hard and dripping pre-cum "Ram this big fat fucker up my ass and pump me full of your cum. I need it so badly."

Syn moans out as she nuzzles and licks his big fat balls. She drags her tongue across his smooth hairless boy balls and looks up to him with a whine. "Turn around, slut. Show me your big fat ass." Syn says with a smile as he gives his cock a few soft strokes milking out a river of per-cum from it.

Claire quickly spins around and raises her ass as high into the air as she can while lifting her tail and giving him free access to her big fat ass. He moves up onto his knees behind her and slaps her ass a few times making her moan out. Syn grabs the head of his cock and strokes the massive head up and down her big fat mound a few times. Wetting it with her dripping pussy juice. Making her whimper in need.

"I need it, I need you big fat fuck stick in my butt. Ram it balls deep and fuck me hard!" Claire moans at his teasing strokes of her pussy.

Syn gives her ass a few more slaps making it jiggle a bit. He presses the wet head of his cock against her ass and rams forward sinking his cock balls deep in her butt in a single thrust. Both of them moan out long and loud at the pleasure watching over them. Syn grits his teeth fighting back the almost uncontrollable urge to blow his load while Claire whimpers and moans as her body shakes with pleasure. Wave of orgasm washed over her body from the first thrust alone.

Syn's massive balls slam into her soaking wet pussy and splashes her juices on her thighs. He pulls back and slams back into her spasming butt and starts fucking her hard and deep. Her body convulses qaas orgasm after orgasm tears through her making her pussy spray pussy juice onto his balls, thighs and bed. Her nipples erupt with milk soaking the bed.

"Fuck me, breed me, make me your bitch. I need our cum, give me your cum!" Claire cries out.

Syn gives her big fat ass several slaps and yanks his cock from her butt leaning her hole gaping and twitching as she looks back at him with a whine. "Why!" She whimpers pushing her ass back at him wanting his cock back in her butt more than anything else.

"I'm your master, slut." Syn tells her slapping her ass and thrusting his fist into her big fat canine mound. She throws her head back feeling his hand filling her pussy and her ass gaping open and empty.

"Fuck me, master. Ram your cock balls deep in my butt and break me." Claire cries out pushing back against his hand and rubbing her ass against his slick cock.

Syn ram his fist into her pussy and fingers her cervix for a minute making her begin and whimper for his cock. He yanks his hand from her pussy and grabs his cock and rams it back into her pussy making her throw her head back with a howl and a massive earth shattering orgasm nearly making her pass out.

Syn starts slamming his cock in and out of her butt making her ass jiggle and her body ripple with pleasure.

"Fuck me, master. fuck me, master. fuck me, master. fuck me, master." Claire cries out as her body milks his cock like a pump.

"Are you my fucking slut. My personal cum dump. My fuck toy to breed anywhere any time I want." Syn says pulling back to the head of his cock and slamming every inch into her before pulling back and repeating it.

"Yes, I'm yours to fucka dn breed anytime you want. Pumped every drop of boy cum you have in me. Pump my butt full of your cum until your balls run dry!" Clair howls as her body continues milking him as orgasm after orgasm washes over her body.

Syn smiles and gives her a few more balls deep thrusts and lets out a scream as he slams his cock as deepa s he can in her butt and his balls visibly contract and a massive jet of cum shoots from his balls, down the length of his massive fucks tick, the head swells and a massive jet of cum shoots form the head and fills her butt. The first jet alone floods her butt and starts leaking out around his throbbing, cum spewing cock. Syn pulls back and starts fucking her again. His cock slides back and forth pulling cum out around his cock adding more of his cum to her butt helping him slide in and out of her even harder and faster. With one final thrust he slams into her pushing her along the sheet and throws his head back with a scream as the biggest load of the day shoots from his cock and floods her butt before he collapses on Claires back panting and gasping for breath.

"Thank you, master. I needed this so bad I couldn't stand it." Claire says milking his cock with her asshole a few more times drawing out the last of the cum from Syn's cock.

"Good girl!" Syn pants still out of breath from the best orgasm of his young life. He strokes her head as he nuzzles into her soft fur and closes his eyes for a nap.