Bad Behavior - A Tailmouth Story

Story by punjoke on SoFurry

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#13 of Tailmouths

Well, here's what's likely to be another one of my esoteric personal works. Yes, it's the tailmouths, back for another story after quite a long gap.

This story was several years in the making, and contains some things I wanted to write since their creation. I actually started on the original story way back, but it was one of the things lost when I lost all of my WIPs, and I didn't revisit it until recently.

As a bonus for taking so long, this one has actually ended up introducing a new character, whose design you may view here if you are so inclined - https://www.sofurry.com/view/794116

Actually it's been so long that I'm sure everyone's forgotten the tailmouths by now. Autumn and Simon, along with their tails, can be found here, for those who are unfamiliar or need a refresher -https://www.sofurry.com/view/253318https://www.sofurry.com/view/253316

Now that that's out of the way and everyone's probably already left... I have mixed feelings about how this one turned out. As a personal project, I'm very happy with it. Objectively, however, I feel like it got bogged down with a lot of details that will bore most readers. This is something that I feel about a lot of my stories - I've always envied the brevity other writers are capable of - but this one especially so.

As a further aside, posting this story made me go back and review all of my previously submitted tailmouth works. The stories especially were in pretty poor shape from the change since the change to SF 2.0! I tried to clean them up a bit and throw all related works into a new tailmouth folder, but the folder management system seems pretty cumbersome, especially when trying to combine artwork and stories in the same folder. But, it is what it is.


Autumn turned up the music coming through her headphones and tried to ignore the funny taste in her mouth. Several textbooks were spread out on the bed in front of her, and she was doing her best to study, but it was becoming increasingly difficult. As usual, Rain was not making this easy. Autumn shut her eyes and sighed quietly.

She knew the taste in her mouth wasn't real. It was more like the ghost of a taste, like when you tried to remember what your meal from the night before had tasted like. But it wasn't quite a memory either. Autumn and Rain didn't directly share sensory input, but they always knew what the other was thinking, and this somewhat applied to what each of them experienced as well. There was no taste in her mouth; it was actually an echo of what Rain was tasting.

Still, the distinct taste of pussy was very distracting, regardless of whether it was real or imagined. She had to say something. Autumn pulled her headphones away from her ears and let them hang around her neck.

"Guys, I'm trying to study. Can you pleeease try to..."

She was too timid to tell them to stop. Rain wouldn't have listened anyway. Even before she finished her sentence, she realized the fruitlessness of it, and her shoulders drooped.

Now that her headphones were off, she could hear the moaning and giggling in full volume. They paused as Autumn trailed off.

Rain's voice, deep, feminine, and seductive, came from behind her. It oozed mock innocence. "If you helped me, maybe we'd be done quicker."

Then she heard a giggle, followed by a voice much higher pitched than Rain's. "Umm, sorry Autumn, but I'm super close to getting off. Rain and I'll play just a little longer, okay?"

And that was the end of that. The two of them returned to their activities before Autumn had a chance to respond. She frowned and stared down at her books helplessly. There was nothing to do but wait it out.

Autumn had nothing against other women; she'd had sex with plenty of them. But she preferred men, her brother specifically, and it was usually in threesomes (or whatever group sex with several tailmouths counted as) that it happened.

Rain, on the other hand, would sleep with anything that moved, and Autumn had few friends that her tail hadn't made a move on. The girl she had her tongue stuffed inside at this moment was Kitsuke.

Kitsuke stuck out as a rarity, to be sure, although not as much as a tailmouth did. She claimed it was due to her lineage; "My father was a tanuki and my mother was a kitsune," she'd told them when they'd first met, and while Autumn doubted the veracity of that claim, she could see a resemblance. Kitsuke had the dark bandit's mask of a raccoon dog around her pale blue eyes, and she had not one, but two bushy brown ringed tails. Thankfully, those tails did not have mouths - Kitsuke was enough to deal with on her own. They'd been friends for years, and although Autumn loved her to death, she dearly wished that Kitsuke didn't encourage Rain's bad behavior so eagerly.

And right now she was definitely encouraging bad behavior. The girl was sitting against the headboard, completely naked and legs spread wide, with Rain buried tongue-deep in her crotch. Her hair was done up in pigtails (which Autumn had to admit was extremely cute) to match her actual tails. Those two bushy tails were currently laid out on either side of her legs.

Once again Autumn could taste her friend's pussy as Rain ran her green tongue up and down the girl's furry pussy, drenching her fur with saliva and rubbing against the hood of her clit. Kitsuke moaned; the tuft of fur between her breasts heaved up with every deep breath. She gripped the the bedsheets in her paws and twisted, hard.

Rain grinned and swallowed the tart feminine juices that rolled into her mouth - Kitsuke was a real squirter when she got turned on. And Kitsuke had been telling the truth, she was dangerously close to cumming. The naughty tail pushed her tongue past the girl's labia, spreading them wide, delving deep for her inner folds. That really hit the spot; Kitsuke's two tails bristled, and her legs jerked shut, clamping down around Rain.

"Oh fuck, Rain," Kitsuke moaned. "Jesus fuck, right there, fuck fuck fuck yeeeeah...!"

She twisted her hips and pushed them upward, so that she was practically humping Rain. Autumn's tail did not relent, and instead increased the speed with which she slid her tongue in and out of their friend. A spasm rippled through Kitsuke's body. Suddenly she spread her legs wide again, let go of the bedsheets, and leaned forward, wrapping her arms around Rain's furry bulk and hugging her tight.

Autumn tried in vain to focus on her textbook, but even she felt her cheeks burning and her pussy tingling. The sounds and scents - and taste - of her tail tongue-fucking her friend to a powerful, wet climax just behind her were too salacious to block out entirely.

She fought the urge to look over her shoulder; that would have just encouraged Rain. Her willpower almost won out... then she realized that her full length mirror was placed conveniently on the wall opposite the bed. Autumn gave it a clandestine glance, and blushed harder when she realized that she could see everything going on behind her reflected in it. She watched secretly, her study material sat forgotten before her.

Another powerful shudder ran through Kitsuke's body, and Rain knew it was time. The tail jammed her thick tongue as deep into the girl's body as she could get it. Kitsuke's body seized up, every hair on her tails seeming to stand up straight, and exploded in climax. Her pussy contracted hard around Rain's tongue, and she squirted a spray of tart, feminine juices right down the tail's throat. Rain sucked and licked hungrily, swallowing every drop that Kitsuke gave her, as the twin-tailed girl came again and again, her well stuffed tunnel squeezing Rain's tongue like a vice each time the waves of passion rocked through her.

The imaginary taste in Autumn's mouth grew stronger as Rain drank down their friend's juices. She tried to push away the feelings of arousal, to suppress the desire to reach down and rub herself.

Finally, Kitsuke's earth-shattering orgasm came to an end, and she slumped down against Rain. The tail pulled her tongue out of the girl's pussy and drew it fully back into her mouth, savoring the taste. Kitsuke was still panting hard, and with a start Autumn realized that she was breathing deeply as well.

"All... done..." Kitsuke said between breaths. She sighed happily. "You're good... with that tongue of yours... Rain."

The corners of Rain's large mouth curled upward. "I make sure to get lots of practice."

When Kitsuke finally let go of Rain and lay back against the headboard to bask in the afterglow, the smiling tail slowly swung around until she was side by side with Autumn's face. Autumn gave her textbooks a guilty stare.

"You know it's silly to try to hide what you're feeling from me," Rain whispered.

Autumn ducked her head down in embarrassment. It was true, obviously, and she knew it.

Rain opened her mouth and licked Autumn's cheek; Autumn could still smell Kitsuke's pussy on her breath. "Are you sure you don't want a turn?" her tail teased her.

"Maybe later," Autumn muttered. "After Kitsuke goes home. And after I'm done studying."

Rain made a 'tsk' of disappointment and withdrew. "Don't forget we have plans later tonight," she said.

She had forgotten, actually. She and Simon were supposed to go to their parents for dinner. And that meant she had less time to study than she'd thought. With a soft groan, Autumn buried her face in her bedsheets. She needed to get ready for her test tomorrow. She needed to find something presentable to wear. She needed to get off. There wasn't time to do all of it.

Kitsuke swung her legs over Rain and hopped off the bed. Keeping the matted fur between her legs covered by her two tails, she bent over and collected the clothing she'd discarded onto the floor earlier. "Uuugh, that was great. I didn't mean to get so carried away though, Autumn, really. I'll make it up to you some time, okay?"

"Ooh, and just how will you do that?" Rain teased.

Kitsuke swatted one of her ringed tails at Rain. "Stooop, I didn't mean it like that. I mean I'd be okay with that, that'd be totally cool. You don't gotta be shy if you ever wanna, you know? Because-"

"Kitsuke," Autumn said, stopping her.

The girl pulled her paw-print panties on. "Right, sorry! No, I'll be your study mate or something. I can like, hold your books for you. Or read them out loud. I'll write an essay for you?"

Rain smirked. "She wants to pass her classes, not fail them."

Pulling her tanktop over her head, Kitsuke puffed out her cheeks indignantly. "I was really good in school! College just isn't for me, you know?"

While her friend and her tail continued to bicker, Autumn put her headphones back on and tried to tune them out. It was much easier to do when they were behaving themselves - relatively speaking - and before long she was back in the groove of studying.

When Kitsuke tapped her on the shoulder, she looked up to see that half an hour had passed and that her friend was fully dressed.

"I'm taking off now. Have fun with your books, and tell Simon I said hi, okay?"

Autumn smiled at her. As much as her and Rain's antics could get on her nerves, Kitsuke was one of her closest friends. "I will. It was good to see you!"

Kitsuke turned towards Rain and gave the tail a quick peck on the top of her 'head.' "Bye Rain! Bye Autumn! I'll call you both later, good niiiiight!" With her goodbyes given, she practically bounced out of the apartment, shutting the door hard behind her.

Thankfully, Rain didn't bring her earlier offer to burn off some of Autumn's pent up sexual frustration, and so the tailmouth had some time to herself before Simon got home. It was enough, even with that persistent tingle between her legs. By the time she had to get ready for dinner, Autumn was feeling a little bit better about her upcoming test.

Simon got home fifteen minutes before they needed to leave. Throwing his jacket onto the bed, he scooped Autumn up in his arms and kissed her. Autumn felt her brother's tongue slip into her mouth, and returned the kiss in kind. When she pressed her body up against Simon's, she felt the tingling of barely suppressed arousal intensify. Finally, she pushed Simon away; now wasn't the time to be getting all hot and bothered.

"You look great, Autumn," Simon said, stepping back and taking her in.

She'd decided to wear a knee length skirt and matching sweater. Autumn blushed and gave him a shy smile, knowing that he'd have said it regardless of what she'd been wearing, but also that he'd have meant it.

"I convinced her to wear those lacy undies you like, too," Rain added with a smile.

"You look great, too, Rain," Simon said. He leaned slightly over Autumn's shoulder and gave her tail a kiss on the mouth as well, though with slightly less tongue. Rain compensated by licking him provocatively before he pulled away; it was difficult to beat a tailmouth where tongues were concerned.

Quest was, as usual, quiet. Autumn reached out and stroked her brother's tail anyway; he pushed up against her arm in a silent display of affection. With Quest, that was more than enough.

Simon and Quest were still dressed in dark slacks and a white button down shirt from work, and so after a few minutes of grooming in the mirror they too were ready to go. The four of them stepped out of their apartment and took the stairwell down to the bottom floor of the building.

Their apartment was several stories up and faced the opposite side of the building; it felt almost detached from the silent urban cityscape that sprawled out beneath them. As they left the building, however, it was like stepping into another world. Neon signs glared bright all along the street, advertising all manner of restaurants, bars, and nightclubs. The nightlife was loud and vivid.

Simon's car was parked in the underground garage, and despite the throngs of pedestrians and cars on the street, they soon turned off onto quieter streets. Their parents did not live far, only ten minutes away if traffic lights didn't slow them down.

"Kitsuke says hi," Autumn said as they drove.

Simon gave her a sideways glance. "You three hang out today? I thought you said you needed to study."

She shrugged. "That was the plan, but... well, she called and then things happened and she came over. It was just for a little while."

The truth was that Rain had invited her. Tailmouths and their tails did not always agree on what they wanted to do, and between Autumn and Rain, Rain usually got her way.

"Anyway, I did study. I tried to, anyway," Autumn continued.

Nestled comfortably in Autumn's lap, Rain added "She was a spoilsport. Kitsuke and I had a lot more fun."

"I'll bet," Simon said. He knew exactly what kind of fun they got into.

They rode the rest of the way in silence, and although it was only a few minutes, Autumn had to try to push the memories that sprang up unbidden. Rain's tongue, warm and wet, against her fur. The firm bulge in Simon's pants when he'd kissed her. The sound of Kitsuke's voice when she came. Fuck, she should have taken care of herself when she had the chance. Now she'd spend all night horny, and Rain would know it.

As if on cue, Rain stirred slightly in her lap. Autumn shifted her legs nervously; she was just about to give in and find some way to get herself off before they arrived when the car stopped, and she realized they'd reached their parents house. Too late.

Their mother greeted them with hugs; four of them, two for Simon and Autumn, and two for Quest and Rain. Then she gave each of them a kiss on the cheek and ushered them all inside.

"How have you all been?" she asked with motherly concern. "Was the drive okay? I know you two live on that busy street, it must be awful at this time of night."

Simon shared a good natured eye roll with Autumn behind her back as he answered.. "No, mom, it was fine. Traffic was okay, we just make a left at the first street and we're off the busy streets."

The rectangular dinner table was already all laid out for them. Two settings on one side, and two on the other, facing each other. Most of the side dishes were already prepared. All that was lacking was the main course. No doubt their father was giving it the finishing touches in the kitchen.

And just like that he emerged from the back room carrying a large roast on a platter. Their mother fussed over it, but she shooed her away and placed it down in the center of the table with pride. Cooking had always been a passion for him. It was only once the food was all ready that he turned his attention to Simon and Autumn.

"Hi daddy," Autumn said, giving him a kiss on a cheek. Rain refrained from the kiss and smiled instead.

"Autumn, Rain," their father nodded to them. He'd never been as openly affectionate as their mother. "Glad you all could make it tonight."

Their parents were not tailmouths, which was not uncommon. It was a trait that often skipped a generation, or even several. Despite their obvious differences, they had always been close as a family, and Quest and Rain been given as much love as their larger counterparts. The tails were their children as well, after all.

Tails, however, did not often partake in dinners at the dinner table. While both mouths were fully capable of ingesting food and drink, eating from them both at the same time was not a good idea. Everything went to the same stomach, and two mouths working together often led to overeating and stomach aches. As such, most tails never ate at all, and instead left it to their partner. Sensory information such as taste was shared to a certain extent after all, so whatever pleasure may have been gained from a particularly tasty meal was gained regardless of who did the actual eating. And since didn't eat at the dinner table, Quest and Rain would often stick themselves out the back side of Simon and Autumn's chairs and wait patiently for the meal to conclude.

Or get themselves into trouble, depending on their mood.

Autumn seated herself next to Simon, opposite her mother, and let their father drop several slices of roast beef onto her plate. Rain dipped down out of sight behind her, no doubt to conspire with Quest while the rest of them were busy. Then the side dishes were passed around and thoughts of her tail were pushed to the back of her mind. Once all of their plates were full, the family meal began in earnest.

"So how's work been lately?" their father asked Simon.

"It's been fine. Personnel changes in accounting have slowed down some of the orders but we're doing fine."

While her father and her brother got into a conversation about work, Autumn focused on her food. The roast beef was exquisite, as expected. Her mother had made the mashed potatoes, she recognized the recipe. Cooking was one thing neither her nor Simon could do, and Autumn missed home-cooked meals. She should learn some day.

A low whisper was coming from beneath the table. Without drawing attention to herself, Autumn leaned back and stole a quick glance underneath the tablecloth. The tails were down there, and Rain was saying something to Quest. Her brother's tail listened, his expression betraying nothing. What were they doing down there?

Autumn turned back to her meal and tried not to think about what her naughty tail may be planning. This succeeded for several minutes. Then, while her brother and her father went on and on about office politics and sales quotas, she felt something furry rub against her ankles. It moved up her legs slowly, until it was practically underneath her skirt. Autumn stifled a cry of surprise and stared hard at her plate.

It had to be Quest; this was Rain's idea.

Simon had stopped talking in mid-sentence too, as he was no doubt aware that his tail was currently pushing its way in between his sister's legs beneath the table. The awkward silence hung for maybe half a second before he stuttered and picked the conversation back up as though nothing suspicious was happening at all.

She should have pushed Quest away and closed her legs. Instead she very carefully spread them wider, allowing the silent tail better access. She felt his furry bulk press against her lacy panties, then felt the wetness of his tongue as it slithered out of his mouth. Autumn shuddered slightly. While she stabbed at her food with her fork, her free hand sunk beneath the table and buried itself in Quest's fur. She was still wildly horny, and while she planned to scold Rain after they'd left, for now the submissive girl gave in.

There was danger here; their parents were perhaps the only people who didn't know about Simon and Autumn's relationship. Being caught fooling around underneath the table at dinner would be bad enough, but with her brother's tail?

Quest's tongue probed her inner thighs seductively. Then, with remarkable dexterity, they pushed her panties out of the way and licked her exposed slit directly. Autumn slid her hips forward half an inch and tried to stay calm. She was glad her fur hid her tell-tale blush, but her heavy breathing could still betray her.

Thankfully, Simon was fully aware of what was going on beside him. He kept the conversation up, speaking louder and becoming more animated, gesturing with his fork for emphasis as he spoke. It kept their parents attention solely on him.

Then Quest's tongue pushed inside of her, and Autumn very nearly gasped. Her labia spread wide around the warm, wet appendage. It slid deeper and deeper, filling her pussy completely, and just when she felt she couldn't take any more, Quest began to thrust it back and forth, slowly and steadily, tongue-fucking her beneath the dinner table. Autumn's fingers dug into his soft fur and pushed him down against her crotch. She wanted to grab onto him with both hands and hump him like crazy, but she couldn't. She simply had to sit still and endure it.

Also beneath the table was Rain. She watched the action intently, no doubt feeling just as much pleasure from Quest's oral fucking. Rain nuzzled intimately against Quest as he worked, licking his fur and murmuring soft encouragements. Autumn couldn't hear what she was saying, but whatever it was worked. Quest's tongue began to move faster inside of her. Rain purred with delight.

"And how about you, Autumn? How are your classes going?"

Startled at the sudden question, Autumn looked up from her plate and saw her mother looking at her. Her throat felt tight, as though she couldn't speak, and she tried not to panic. Sensing Autumn's distress, Quest slowed his tongue work - but didn't stop it.

"It's... it's fine," Autumn said quietly, when she felt she could speak. Then she turned her eyes abruptly back down towards her plate and shoved a piece of roast beef into her mouth.

Simon saved her. "She's been studying practically all day, I think it's got her a little frazzled. You know how it can be. How about you, mom? Still fixing up the house?"

Autumn sucked in a deep breath as her parent's focus switched back to Simon. She'd always been the quiet one in the family (second to Quest of course) and so her unresponsiveness didn't draw any suspicion.

Once the coast was clear, Quest got back into the swing of things in full force. He buried his long, green tongue deep inside Autumn's quivering slit. Her inner muscles clamped down around it, but this only spurred him on. Her entire body felt hot now. It wouldn't take too much more to push her over the edge.

Almost there... almost...

It hit her like a ton of bricks. Jumping slightly in her seat, Autumn squeezed her legs around Quest and tugged at his fur. Her pussy tightened down and began to massage Quest's tongue rhythmically as waves of climactic pleasure flooded her from her head to her toes. She very nearly moaned out loud, but by some miracle managed to stop herself at the last moment, and so rode out the orgasm in silence, save for her heavy breathing.

When it was over, she slumped down slightly in her chair. Everything felt hazy, and she could barely focus on what was being said around her. She hoped nobody had addressed her mid-orgasm; she wouldn't even have noticed.

Beneath the table, Quest pulled himself away from her crotch, giving her damp pussy one last lick before retreating entirely. Rain cuddled Simon's tail, the two of them sharing an intimate moment, before they unwrapped themselves from each other. Autumn closed her legs and carefully rearranged her skirt. Somehow they had pulled off their naughty hijinks without being caught.

The rest of the meal passed without incident. Autumn had butterflies in her tummy as an aftereffect of getting off, but she still managed to finish her entire plate. After everyone was done, their parents insisted that they'd clean the table off by themselves and then put the finishing touches of dessert, so Autumn and Simon excused themselves and left the room.

They barely stepped out of the dining room when Simon grabbed Autumn's hand and led her through the hallway at a swift pace. Upon reaching the bathroom, her brother pulled her inside and shut the door behind them. Suddenly Autumn found herself pushed up against the wall, and Simon's mouth pressed up against hers. He rubbed her chest through her sweater and ran one hand up her leg, hiking up her skirt.

"Autumn, what was that?" he moaned.

"Rain's idea," she muttered, melting against Simon.

The guilty tail in question pressed against Autumn's shoulder, just inches from the two of them, and shamelessly fomented Simon's growing lust. "She'd been denying herself all day. You should have seen the way she watched me do the same to Kitsuke earlier, Simon. You really should have been there, it would have been so much more fun!"

It came as no surprise that he was all worked up now, just the way she had been when Rain had eaten out Kitsuke. Only Simon could rarely resist his sister's charms, especially not when Rain was instigating. He had to be hard as a rock right now, and probably had been all through dinner. She let her hands wander down towards his crotch and confirmed her suspicions.

"Do it quick," Autumn whispered to him. "Before we're missed."

Simon's dick practically jumped out of his pants when Autumn unzipped him. Growling into his sister's fur, Simon pushed her skirt the rest of the way up and took hold of his shaft, guiding it into position. Her lacy panties, the ones Rain had convinced her to wear, were still slightly askew from when Quest had moved them out of the way; they offered no resistance as the tip of his cock brushed against her slit.

Rain was purring in her ear. Quest was nearby as well, silent as always.

"Autumn," Simon hissed. Then he thrust his cock into her and began to fuck with with sharp movements. Autumn bit her lip and gasped. She pressed her face against his furry shoulder and held onto him tight.

His dick wasn't as long or as thick as Quest's tongue, but it was much more firm. Autumn's body shook as her pussy squeezed down around its length, coaxing him to thrust harder and faster. When he hooked his hands around her hips and lifted her off the ground, she wrapped her legs around his torso. He held here there, suspended in the air, back against the wall, and fucked her roughly. She could feel the tip of his prick sliding even deeper in this position. She cried out, her face still buried in his fur, begging him for more. "I'm gonna cum quick," Simon said. He jammed his cock in all the way and held it.

Autumn's eyes widened a bit. "Simon, wait-"

But Rain nuzzled against them. "Do it," she said.

It was too late. Autumn already felt the knot at the base of Simon's penis expanding, tying them together. As much as her brain was telling her that this was hardly the place for it, her loins were sending another message. When she felt her brother's knot fully expanding, stretching her pussy and filling her completely, she lost it. Another orgasm wracked her body, and she shivered against Simon.

She whimpered and moaned and came, and was rewarded when she felt Simon's body respond. His muscles tightened, and she felt his cock jerk inside of her. She could practically feel the surge of cum rocket through his shaft and explode into her. The warmth of his thick, gooey seed spread through her nethers. His forbidden love for her made manifest.

The air was filled with the sounds of heavy breathing. Autumn clung to Simon like she never wanted to let go. Even as their mutual orgasms subsided, they remained knotted together. Simon held her up against the wall and cuddled against her.

"That was good," Rain said, still pressed up against Autumn's shoulder.

"You really should have pulled out," Autumn sighed. "We can't be stuck in here like this for too long."

Simon shrugged sheepishly. "Ah, my bad. I'm sure they won't miss us, they're probably fussing over a pie right now or something."

They shared a tired laugh together at the thought of it. It was probably true. Their parents could wait another five minutes. Hopefully it wouldn't take longer than that.

"Shame on you though, Rain," Simon said, addressing Autumn's naughty tail.

Autumn looked up in surprise. It wasn't like Simon to chastise her.

"Me?" Rain asked innocently.

"You know what you did. You got Quest to go down on poor Autumn like that but you left me high and dry. Next time we have dinner, don't leave me out of it."

Rain snickered. Autumn rolled her eyes. The things she had to put up with.