#goo girl

A commission for @ofeternaljoy featuring her cow-dog-sheep-etc hybrid pet Luna and a new catgirl OC of mine. This story’s longer and hornier and a little bit stranger than anything I’ve written before, so check the content warnings and if you’re on board with all that I hope you have fun!

cw: goo girl, massive insertion, petplay, fake embarrassment, threesome, there’s some descriptions of weird monster girl cum later on, I mean it when I say this one is out there

Auburn fidgeted nervously at her desk, staring past the compiler window on her screen at nothing. She had combed the code over and over fifty times trying to figure out what bug was making her program crash on startup, but nothing she did fixed the problem. There must have been something simple she was missing, some checkbox she forgot to tick like an absolute novice, but she was sitting at her desk motionless turning the problem over and over and over in her mind and she couldn’t come up with a single idea.

The door to her room slammed open and a bellowing voice cried “Aubey!!!!” so enthusiastically you could hear every single exclamation point. A massive, buff as hell red woman swept into the room like a storm and lifted Auburn right off her seat. “I was fucking worried about you! We were gonnae watch the Space Girl marathon! AND YOU NEVER SHOWED!”

“I’m sorry, Claire,” Auburn said weakly, crushed in Claire’s mighty goo-orc arms. “I got wrapped up in this coding problem and I was gonna head out but I wanted to figure it out first and it was only going to take a few minutes but I lost track of time and–.”

“DON’T BE SORRY!” Claire yelled, somehow even more eager and excitable than usual while crushing a girl in her arms. “I’m jes happy yer okay! I never know what might happen tae you cooped up in here!”

“Probably not a lot,” Auburn said. “I’m just plugging away at the game like usual.”

“Well ye gotta take a break sometimes, donchae? I was really hopin’ tae get my hands on you tonight!” Claire leaned down to bump her rubbery forehead against Auburn. “Yae know, like all over you. Like for sex. If’n you were int’rested, a course.”

Auburn blushed, her cheeks turning bright red under her brown cat fur. She was in need of a good fucking. “Maybe once I figure out this last compiling issue we can do something.”

“ALL RIGHT!” Claire beamed. She plopped Auburn right back down on the ground and walked over to the computer. She stared at the screen intently. Auburn had no idea what she could be seeing. Eventually she stood up and nodded sagely. “Have ya tried petting it?”

“No?” Auburn slipped back into her chair. “That, really wouldn’t help. What would I even pet? The computer? I can’t touch the program, Claire.”

“I say it’s worth a try!” Claire pronounced. “I never met a problem tha’ wouldn’t be fixed with a good petting.”

“You haven’t met many coding problems, I take it.”

“I’m tellin yae, it works!” Claire put a firm hand on Auburn’s head. “Here, I’ll show ya!”

Auburn opened her mouth to complain, but all that came out was a contented purr as Claire tenderly rubbed her head. She patted Auburn and ruffled her hair and scritched her behind the ears, and Auburn just completely melted into her, cuddling eagerly against Claire’s strong arms and purring up a storm.

“I told ya so!” Claire said, content that her point had been made. She kept on giving Auburn loving pets, never one to deny a girl who was clearly enjoying herself so much. There was nothing better or more adorable than a girl eager to cuddle and submit. “GOSH you’re a cutie!” Claire proclaimed. She kept on petting until she was struck by an idea. “Ach! I know what you need! I’M GONNA LET YOU PLAY WITH MY PET!”

“Mrrp?” Auburn said, looking up at Claire.

“YES! YOU’LL LOVE IT! SHE’S SO FUCKING ADORABLE AND SHE LOVES TAE GET PEOPLE OFF! IT’LL BE THE BEST!”

Auburn knew Claire’s pets well, just like everyone at the castle did. They were the sluttiest, happiest, most submissive girls around, and they all loved their owner dearly. Some days Auburn wished she was one of them. Most days, really. Of course she wanted to play with them. She purred contently. “That sounds wonderful…”

“FUCKING GREAT!” Claire shouted and she immediately charged out of the room.

After Claire left Auburn started slowly coming to her senses. She leaned back in her chair, sighed contently, closed her eyes for a second, and then finally realized what she had just done. She sat back up and silently worked her mouth a few times. “Oh.”

It wasn’t like she didn’t want to play with Claire’s pet. In fact, she very, very much did want it. And the fact that she wanted it meant she had no choice but to stay there in her chair trying to ignore her anxiously pounding heart and the growing stiffness under her skirt.

The soft clanging of a cowbell announced Claire’s return. She grinned proudly, flashing a bit of her cute little fangs, dragging Luna behind her on a leash. The busty cow-dog was blushing and pouting like she was embarrassed to be leashed up and lead around the castle in the nude, but even Auburn knew better than to believe the act. She couldn’t help being a little jealous.

Claire clapped Luna on the back, making her cowbell sound out. “LUNA! This girl needs to cum PRONTO!”

Luna shook her head and slipped out of Claire’s grasp. “Are you gonna let me off the heckin leash first?”

“BUT YOU LIKE THE LEASH!”

Having it said out loud made Luna pout harder and blush deeper, but she couldn’t deny it. She tried to maintain her pride by turning her attention on Auburn. “So, Auburn,” she said, swaying her hips seductively. “Claire says I’m supposed to get you off.”

“Uh, I mean, she did say–and I agreed…” Auburn blushed and stammered. “If you want to, I mean, you can definitely fuck me, but, I. Uh.”

Luna swaggered across the room, Claire keeping leash length behind her with an eager grin. “She was right, you are a cutie pie.” Luna put a hand on Auburn’s head. “Well, let’s just get you down on your knees, and I’ll give you everything you need, and then I’ll take everything I want.”

“I. Ah.” Auburn’s voice caught in her throat. All she could do was nod timidly. Luna smiled back for just a second before Claire grabbed her head and pushed her all the way down into Auburn’s crotch.

“Claaaaiiiiiire!” Luna whined. “I wanted to be on top this time!”

“Butcha wanted tae suck her even more, dintcha? Be honest, now!”

Luna blushed and pouted, but she had to nod and admit it.

“Good girl, Luna. Let’s get this out of the way and getcha your treat.” Claire grabbed hold of Auburn’s skirt and pulled it down with her panties. Auburn “eep”ed and blushed and covered her face, but she was already hard and more than ready for it.

Luna spread Auburn’s legs and licked her girldick eagerly, running her tongue up the shaft from the base and swirling it around the head. She sucked Auburn into her mouth and swallowed the entire length in one go. A cute hen like Auburn’s was no challenge for Luna, who was so accustomed to being stuffed with her owner’s massive girth.

Auburn leaned back into the chair, whining and moaning while Luna licked and slurped and sucked on her girldick. Claire came around behind the chair and pulled off Auburn’s shirt and bra. She eagerly grabbed and fondled Auburn’s tits, holding them in her huge soft gooey hands and toying with them roughly. “Are ya having fun, cutie???” Claire asked enthusiastically.

“Ah… ahh…” Auburn could only moan and squirm under both girls’ unrelenting attentions. She bobbed her head in a rough approximation of a nod.

Claire gave her tits a nice firm squeeze. “GOOD!”

Patience wasn’t Luna’s strong suit. She wanted Auburn’s tasty cream. Her fingers dug into Auburn’s cheeks and spread her ass open. She pulled Auburn forward and deepthroated her, gagging and choking and moaning happily around the lovely hard dick in her mouth.

With Luna’s intense attention and Claire’s strong hands kneading her breasts Auburn had no choice but to sputter and scream and fill Luna’s obliging mouth with girlcum. Luna just kept on sucking, drinking all of her down with ease before slowly pulling back, tracing a long, lingering trail up the shaft with her tongue.

Auburn slumped back on the chair. Claire kept her held up by the tits. “Looks like you had a good time!” She reached all the way down to pat Luna’s head. “How was it for you, pet?”

Luna looked up at Auburn and blushed. “It was all right. I guess.”

“I think you did a GREAT job!” Claire slid her hand up Auburn’s chest and put it around her throat, pulling her head close to stage-whisper in her ear. “Whaddabout you, cutie? You enjoyed yourself, dintcha?

Auburn gasped for air and tried to catch her breath. She nodded faintly, head still foggy in the afterglow.

“Wannae give her a little reward?”

She nodded again. If she had to talk or think about it she would be a stammering bundle of nerves. But this? This was perfect. She needed this badly.

“Good girl!” Claire put an encouraging hand on Auburn’s head and guided her off the chair, pushing her down further and further until she was on all fours. “Let’s get you down on yer knees where a pet belongs.”

Luna perked up and squeezed Auburn’s ass. “Does this mean I get to fuck her?”

“Only if you’re sure you don’t wannae be down there with her!”

“No!” Luna protested. “I’m gonna fuck her!” She gave Auburn’s ass a slap and got a pained whine for it. “Don’t you worry, slut, this cow’s gonna fill your ass with her milk, and you’re gonna love it.”

“Don’t be too rough with her now!” Claire said, watching over them eagerly. “Least not unless she wants you tae!”

“You’re one to talk, ya big gooey orc!” Luna slid her girldick between Auburn’s buttcheeks and poked against her tight pucker. “Tell me where you keep the lube and I might not wreck you too bad,” she said in a lilting, teasing voice. “No promises, though.”

Once she found the bottle Luna lubed her up gently. She talked up how she wanted Auburn’s ass nice and ready for what was coming while her finger, so much more delicate than her dirty mouth, carefully explored inside her. As the afterglow faded and Auburn’s wits slowly returned to her she started to wonder if Luna wasn’t trying to psyche herself up. If she was, she got there eventually, because she pulled out her finger and lined herself up to claim Auburn’s ass.

Luna wasn’t a gentle lover, but she wasn’t fierce either. She took Auburn at a comfortable, steady pace, letting herself fall into an easy rhythm. Auburn buried her face into the carpet and let herself enjoy the pleasant fucking, slipping into a feeling of cozy, content submission.

But Claire had other ideas. She walked around them, plopped herself behind Luna, and announced her plans subtly, by throwing off her clothes and shouting out at the top of her lungs, “LUNA SANDWICH!” Luna bleated in surprise as the red orc’s firm, gelatinous hands clapped down on her shoulders and held her in place.

“C-Claire!” Luna whined. Even with Claire’s intervention she wasn’t missing a thrust inside Auburn. She was much too invested to stop fucking her now.

“That’s me!” Claire hotdogged her big red hen between Luna’s soft cheeks. “Whatsamatter, Luna? I know you’re a big adorable slut who loves havin’ a girl’s hard thick cock in her. Haven’tcha been thinkin’ bout gettin’ my dick in ya this whole time? Aren’tcha gonna let me give you what you need?”

“Nngh!” Luna blushed and scrunched her face in needy frustration. She made an incomprehensible noise and exclaimed, “Just fuck me already!”

That was all the invitation Claire needed.

Auburn felt Luna whine and go limp on top of her as Claire’s massive cock stuffed her ass well beyond capacity. “What’s that, pet?” Claire grunted. “You want it even BIGGER?” Luna moaned and cried and held on to Auburn for dear life while Claire’s dick grew inside of her, filling her ass fuller and fuller, slowly pushing her hen further and further into Auburn’s hole.

Claire had no mercy for Luna’s tight, welcoming butt. She fucked Luna hard and fast, holding the cowgirl steady so she could get traction inside of her. Every time she thrust forward she rammed Luna’s dick into Auburn’s ass, and Auburn’s eager slutty moans joined Luna’s overwhelmed, overstuffed gurgling and Claire’s throaty excited grunts in a symphony of lewd, girlish cries.

It didn’t take Auburn long to cum. She screamed in pleasure and collapsed panting into a pool of her own girlcum. Her climax didn’t make a difference to Claire and Luna, who kept fucking on top of her, stuffing Auburn’s well-fucked, overstimulated rear full of cowgirl dick over and over.

“I hope you’re ready, Luna!” Claire grunted. “I’m gonnae fill you right up, pet! Gonnae stuff you full of my cum! Gonnae get you nice and full and proper fucked like the good slutty pet you are! Gonnae–GONNA–”

Claire and Luna both cried out as Claire filled Luna’s ass with thick loads of her cum. Luna twitched and whined desperately on top of Auburn, too impossibly full to even cum herself. Slowly, bit by careful bit, Claire pulled out of Luna’s overstuffed ass. Each inch of freedom made Luna spasm with relief and pleasure. When Claire finally popped her dick free Luna let out a slutty cry and filled Auburn’s ass with strings of her own cum, even as Claire’s red seed leaked out of her all over the floor.

Both exhausted bottoms fell to the ground in a spent, cuddly pile. Claire grew her arms so they were big enough to scoop up both girls and hold them tight to her chest. “Aren’t you just a coupla lovey happy blissed out lil pets?” She gently patted both of them with a giant hand. Auburn leaned back against her, deeply tired and entirely content.

Luna crawled up next to Auburn and wrapped her arms around her needily. “Hope you had fun,” she muttered sleepily. She gently kissed Auburn’s neck. “I’ll fuck your ass any day.”

“I hope Luna’s not botherin’ you there, Aubey,” Claire said. “She gets real snuggly after a proper fuck. Lets all those pesky hang-ups go and turns into a perfect cuddly cow. Isn’t she just the cutest?”

“Noooooo!” Luna protested in a tired, petulant whine. “Shut up! You’re the cutest!”

It was adorable. Auburn didn’t mind snuggling with her in the least. She purred happily and shut her eyes. When Luna was done pouting, she went back to snuggling and kissing Auburn’s face.

For a few precious minutes Auburn was at peace. But eventually her thoughts started drifting back to the compiler window, and the options menus she had spent hours pouring over. She did remember to change the Unicode settings, right? Sometimes she had to change her system locale to install doujin games off the internet, maybe there was a characterset conflict she hadn’t considered. She was pretty sure she checked for that, but, maybe she didn’t. She definitely thought about it, but maybe she forgot to actually do it. Should she check again? She should check again.

It was hard not to envy Luna, kissing and snuggling without a care in the world. Auburn opened her eyes and sighed. She slowly, reluctantly tried extracting herself from both Claire and her pet. “Thank you, Luna,” she said, carefully worming herself out of Luna’s arms despite her disappointed whining. “And you too, Claire. I should really get back to work, though.”

“Are ya sure?” Claire said skeptically. “You looked so fuckin’ cute and happy snuggling with Luna Moona there! I don’t wannae offend, but I betcha it’d do more good stayin’ here and bein’ a sweet li’l pet for me than bangin’ your head against whatever you feel like ya haftae do there.”

Luna crawled up Claire’s chest and hugged her neck. “Yeah, don’t bang your head, bang me.”

“That sounds really really nice, but I just keep coming back to this problem, and it won’t leave me alone until I fix it. Believe me, if I could turn it off, I would.”

“OH!” Claire shouted out of nowhere. Auburn jumped up in her arms out of surprise. “I CAN DO THAT!”

“Do… what, again?” Auburn asked.

“TURN THAT OFF!” Claire proclaimed. She lifted Auburn out of her arms and put her right on the ground. “Donnae worry, Aubey! Miss Claire’ll fuck the worries right out of ya!”

Luna snickered knowingly. “And everything else. Claire doesn’t know the meaning of the word restraint.”

“I know a lot about restraints!” Claire said, gently petting Luna cuddled up against her shoulder. “You know that better than anybody, don’t you, Luna?”

That got Luna blushing all over again.

Auburn was blushing deeply herself. She shuffled nervously and sputtered, “Th, that’s, very generous, Claire, but, I don’t think–”

“Please let me take care of you!” Claire said eagerly. “Fucking a cutie until she’s all blissed out and happy is THE BEST FUCKING THING!” She lovingly hugged the cow-dog clinging to her and softly kissing her neck. “Just look at Luna!”

“Yeah, look at me cuz I’m so fuckin’ hot,” Luna said smugly.

“YEAH!” Claire affirmed. “Cuz she’s HOT! And because she’s so sweet and lovely and perfect and HAPPY! I wannae help make you happy too!”

Claire’s thick red dick was fully erect. Auburn couldn’t help glancing at it, thinking about its taste and its smell and how it would feel inside her and–the game could wait. It wouldn’t hurt to have a little more fun. “Well, if you think it’ll help…” she said, blushing adorably.

“FUCKING WONDERFUL!” Claire put her hand on Auburn’s head and petted her until she worked up a nice deep purr, then scooped her back up in her arms and carried her over to the bed.

She flipped Auburn around and dropped her on the mattress with her head hanging off the side. Claire’s thick red dick hung tantalizingly in front of Auburn’s mouth. Luna hopped out of Claire’s arms and onto the bed. “ALL RIGHT!” Claire said. “Our pretty li’l kitty needs her tits ‘n’ dick sucked, and Luna’s the perfect slutty moo-cow for the job!”

“Wh-who says so?” Luna objected, blushing bright red.

“I do!” Claire reached over to pet Luna. “Because I know that you are!”

Luna turned bright red and squealed in embarrassment at Claire’s touch. After a couple of pets she melted entirely and couldn’t even pretend it wasn’t true. “I ammmm…” she moaned happily.

Claire kept petting Luna and slowly pushing her down until her face was buried in Auburn’s breasts. “Get to work, pet!”

Auburn gasped and moaned and squirmed with desire as Luna took her breasts in her hands and her nipple in her mouth. Luna wasn’t shy in the least about sucking and savoring Auburn’s cute tits. She loved the slutty sounds Auburn made when she suckled and bit her sensitive nubs.

One of her hands trailed down Auburn’s chest, over her stomach, and to her crotch. She gently stroked Auburn’s hen. Auburn shuddered and whined at her touch, as pathetic and needy and submissive as Luna herself. It was a good look for a slut. Everybody was always teasing Luna, but if she was half as adorable as this, she couldn’t blame them.

While Luna enjoyed Auburn’s cute needy body, Claire was tormenting her with a face full of tantalizing girldick. Auburn’s nostrils were filled with Claire’s sweet, intoxicating musk, lulling her in with an overwhelming sensation of sweat and love and feminine desire while frying her brain with a chemical undercurrent that gently burned her nose. “So, is there something else thatchae want?” Claire asked suggestively.

Auburn could only beg for it with desperate needy moaning.

“Come on now! I can’t know what you need if ya don’t tell me!”

“Please…” Auburn begged.

“Please what now, toy?”

Luna kept expertly teasing Auburn’s tits and grinding against her girldick, making it almost impossible for her to form a complete thought, let alone a complete sentence. It took all of her willpower to blurt out, “Please, Claire! Please fuck my mo–”

She didn’t even get to finish the word before her mouth was stuffed full of thick girlcock. “I knew that’s what you were lookin’ for!” Claire announced, clearly satisfied with herself. “I just wanted tae make ya say it!”

Claire’s dick was huge and thick and meaty, unrelentingly full and hard as it filled her yet squishy and pliable to the touch. It was sweet and tangy in her mouth, almost acidic, but it left a musky, intoxicating aftertaste that encouraged her to lick and suck and take all of it down her throat. She needed to get as much of it between her lips as she could and Claire was more than happy to provide. Claire stuffed her full, all the way down to the hilt, and fucked her with senseless, greedy abandon. “There’s plennyae more where that came from, pet!” Claire grunted confidently. “Don’t be shy! Just say the word an’ I’ll give ya eeeeeeverything you could want!”

Claire’s toy wasn’t in a position to say many words. She was too busy eagerly gagging on firm squishy girldick.

Luna let go of Auburn’s tit and slid down her body, leaving a trail of saliva where she traced her tongue down Auburn’s stomach. Auburn’s needy moaning when Luna took her into her mouth was almost entirely muffled by Claire’s giant red goo-dick. That didn’t discourage Luna from deepthroating her enthusiastically.

Auburn shook and shuddered and moaned in ecstasy. Her entire being was washed away by pure submissive bliss. Her girldick twitched and pulsed desperately against Luna’s throat. And despite the overwhelming pleasure consuming her, she didn’t cum. She was beyond thought, beyond want, but if she had been capable of wanting anything, she would have wanted this to never end.

Claire bucked and thrust and filled Auburn’s mouth over and over. Her enthusiastic encouragement had given way to raw, greedy grunting. She was going to fill her toy full of hot thick girlcum and nothing was going to stop her.

And nothing did. Claire groaned possessively and her cock twitched in Auburn’s mouth before finally flooding her with sticky red cum. It overwhelmed what few senses she had left with a sickly-sweet yet savoury taste like smoked cough syrup, and it just kept coming. It splashed and dribbled out of her mouth and over her face and flowed straight through her throat to her stomach. Auburn cried and gurgled and gagged as it filled her, and when the torrent finally began to subside, she spasmed desperately and shot her own salty release into Luna’s mouth.

Luna kept tenderly suckling Auburn’s dick a while longer and licked up all of her cum before letting go of her. She climbed back up Auburn’s spent, exhausted body to gently bite and suck her tits. Claire finally pulled out and let Auburn catch her breath for a few moments before kneeling down and kissing her panting, cum-filled mouth. “Wow, Aubey! You’re such a lovely fuck toy!”

“The best fuck toy,” Luna agreed, still playing with Auburn’s tits.

“She’s close!” Claire reached out and scritched Luna behind the ears. “She’s almost as good as my perfect little Luna.”

Luna blushed and whined at the unfairness of it.

Auburn smiled faintly. They were really cute together. Maybe someday she could have an owner who loved her as much as Claire loved Luna. She closed her eyes and drifted off without a single thought of code or compilers in her head.

When she woke up both Luna and Claire were still holding her and kissing her. She spent a long time just laying there in bed, dazed and half-asleep and enjoying their caring, tender affection. Once she finally came to properly she shuffled and stretched out between them. Luna didn’t even let her finish before leaning up to kiss her deeply while grabbing and groping at her breasts.

“Wahey! You’re awake!” Claire held Auburn close and kissed her behind the ear. “Luna wanted tae keep ya company while you napped.”

“I just wasn’t done fucking her,” Luna said assertively.

“I’m not done fucking either of you!” Claire reached past Auburn to pet Luna, who predictably melted in a blushy pile of cow-dog. “But Aubey keeps saying she has tae work and shit! I don’t wannae keep her from it unless she wants us ta!”

Auburn craned her neck to look past the pile of girl she was in at her computer. She couldn’t even begin to remember what she had been working on. With Luna’s hard dick sticking into her thigh and Claire’s rubbing between her buttcheeks, she didn’t care to, either. “No, don’t worry about it,” Auburn said. She leaned down and gave Luna a big kiss. “You can fuck me all you want.”

My favorite undertale backgrounder,,, can’t remember anything they said tho so we’ll see how well the dialogue matches this design in retrospect