Self-Sabotage

Baron heaved the last of the trash bags over his shoulder and carried it out of his apartment, tossing it into the trash bins outside before dusting his hands, huffing gently as he glanced over at his phone, checking the time. The Australian shepherd hadn't had too many guests over in a while, at least none that weren't there to either drink and watch the game or have a one night stand. He had started college a few years ago, moving a couple of hours away from his parents so that he could have an easier commute, leaving his younger sister alone with them. He certainly visited fairly often, almost once every month, but this time his mom had come to him with an odd request: for his sibling to stay with him for a few days. She didn't really give any specific reasons over the phone, but Baron had always enjoyed the company of the little cub so he agreed to it, thinking it'd at least give him a reason to finally do some spring cleaning. The young man continued his tidying before having a quick shower, pulling on his red hoodie just as he heard the doorbell ring, opening the door to be greeted by his mother and his sister standing side by side, smiling at him. A second after opening the door he was met with something else as well however, the strong and unmistakable scent of a female in deep heat, the puzzle pieces instantly clicking into place in the boy's head as he tried to remain nonchalant, 
"Heya mom, have a nice drive?" 
"Oh hey sweetheart, the trip was alright."
"How about you Leanna, how have you been?" 
The 10 year old girl shrugged gently, rocking back and forth, 
"I've been alright."
The pup walked inside, taking off her shoes and jacket as her brother and mom continued talking at the door, Baron keeping up his poker face, 
"So, you'll pick her up on Tuesday, then?" 
"Yep, she should have everything in her bag, call me if something comes up."
"I will, see you then!" 
He waved as she walked off into her car, seemingly in a hurry to get out, his smile quickly transforming into a smirk as he turned his head away. She hadn't once mentioned her heat, the teen not sure whether it was because she was still innocent enough to think that he wouldn't recognise the smell, or whether she simply didn't want to address it out of awkwardness. But he did now have a good clue as to what the reason for Leanna's surprise sleepover was, his mom and dad probably wanted her out of the house for a few days so the two could bang each other like rabbits, the Australian shepherd shaking his head and stifling a laugh as he closed the front door. 

Baron led the young cub through his small apartment, stepping into the living room and motioning towards the couch he had spread out, a bedsheet, some pillows, and a blanket set on it, 
"...and here's your place for the next few days. I hope you don't mind that you'll have to sleep on the sofa, I don't really have any other beds besides my own. It's kinda comfortable, definitely beats sleeping on the floor at least, so there's that."
Leanna giggled as she threw her small bag onto the sofa, zipping it open to grab a charger for her phone, sitting down to plug it into the wall, 
"Thanks, I'm sure it's fine, never been too picky about where I sleep."
"I know, 'cause half the time when we were on a car trip somewhere, you'd fall asleep right on my lap. You probably ruined at least like twenty of my shirts because you'd drool all over me while you snoozed."
The two canines laughed, Baron's snickering trailing off as he lifted his muzzle up towards the sky, his nostrils flaring up as he sniffed the air, raising an eyebrow in slight confusion. Even though his mother had only been around for a minute or two, not even stepping inside of his apartment, the place still smelled distinctly like heat, the heady aroma worming its way down into the boy's lungs and filling up his body, his blood slowly starting to migrate northwards as he tried to just ignore the pheromones lingering all around him. The scent wasn't the only thing that he found slightly odd, his eyes drifting down to his younger sibling's legs while she wasn't looking in his direction. Usually she was the very model of a tomboy, Baron having seen her in something other than pants only a few times that he could remember. But for some reason, she had chosen to wear a short skirt this time around, her thighs peeking out from underneath the hem as her tail slowly wagged. What the boy didn't know was that Leanna's sudden change in fashion sense had a reason behind it, the girl grinning to herself as she could almost feel his gaze on her flank, trying to act as innocently as she could. Her very first heat had started at almost the same time as her mother's had, her scent hidden underneath the other female's. She wanted to keep her condition secret, preferring to have her brother on the disadvantage for the time being. 

A few hours later on in the evening, the two siblings were sitting side by side on the spread out sofa, both munching on some pizza that Baron had ordered in, watching a movie on the TV. The boy had to constantly keep his mind centered on something other than lewd thoughts, the scent of heat still stubbornly lingering around in his apartment even after he had subtly cracked open nearly every single window to air the place out. Even as he shovelled another slice of pizza into his maw and tried his best to focus on the movie, his head was invaded by images of swollen and wet spades, quivering and begging to be stuffed by his knot and filled to the brim with his seed, just one single second of letting his concentration slip and allowing his daydreams to take over suddenly making his sweatpants bulge out. He quickly leaned forwards, pretending to just nonchalantly have his elbows propped on his knees as his face burned with shame and a few beads of sweat slithered down the back of his neck. The Australian shepherd thanked his luck that at least his sister was young enough to seemingly not recognise or be affected by the smell of the heat, not wanting to be the person who had to have the awkward talk with her. She was simply relaxing and laying back, nuzzled against his side, her feet swaying in the air. As much as Baron hated to admit it, her body pressed against his made the whole situation even worse, her tiny hand resting on his thigh forcing his knot to slip out of his sheath. He despised the idea of being in any way titillated by a member of his family, especially his underage sister at that, but his own body didn't seem to mind who exactly it was, only that it was a female. He peeked at the cub in his peripheral vision, his eyes travelling the peaks and valleys of her legs, the sight of her inner thighs visible making him burn up inside. He huffed and set down his food, pulling off his red hoodie and tossing it aside fanning his t-shirt as Leanna glanced over at him, 
"Something wrong?" 
"Nah, just… just a bit hot in here, I guess summer is coming a bit faster than I would've thought…"
Seemingly content with his explanation, the girl focused back on the television and leaned even further back, shifting her legs around. Her brother's eyes went wide, his heart almost stopping as he could've sworn he saw a flash of pink underneath her short skirt. He forced his head forwards, staring blankly at the screen as his mind raced, trying to come up with an innocent explanation for what he saw. Surely the pup wasn't going commando, at least not with a skirt that short, at least not with her own sibling almost twice her age?! 

Baron felt his heart thumping in his chest louder and louder, the bulge in his pants growing to the point where a quite clear outline of his entire shaft and knot was visible through one of his pant legs, every breath he was trying to take getting harder to swallow as he felt his throat closing up. Desperate to get out of the situation before his sister noticed anything, or before he did anything stupid, the shepherd bolted up from his seat and stammered as he quickly marched out of the living room, heading towards the bathroom, 
"Gotta… gotta take a piss…" 
Overestimating Leanna's naivete, he didn't notice as a huge grin appeared on her face as soon as he had turned around, the girl waiting until she heard the bathroom door closing and locking before she put her plan into motion. This was her first taste of heat, and she didn't particularly enjoy the experience, the never-ending craving making her want to crawl right out of her own skin. After hearing about her mom's plans for offloading her to his brother for a few days, she had made some hurried preparations to hopefully help her rid herself of the curse. Leanna groaned as she spread her legs, the cool air grazing against her bare pussy feeling almost divine, but simultaneously also making the unrelenting itch even worse. She pressed a hand between her thighs, finding her fur wet to the touch, her finger sliding between her puffy spade and bumping right against her clit, the touch making her moan and close her eyes. The canine quickly grunted and shook her head, not wanting to lose herself while she still had a job to do, pulling her digits out from her nethers before standing up and sneaking over to her bag, opening a small pocket on the side and digging out a half-used blister pack of small, light green pills. She had seen her father taking the pills a few times previously, always after him and her mom had thought that she was fast asleep, those nights always ending with the pair retreating into their bedroom and moaning away until the early hours of the morning. She had done a little research online based on the name of the medication on the back of the pack, knowing them to boost libido and all sorts of other fancy medical sounding things that she didn't quite understand, but the girl knew they'd help her that night. She popped a few of the pills out and grabbed Baron's bottle of soda, going into the kitchen and smashing up the pills with the back of a knife, grinding them into dust before pouring the whole lot into the bottle, mixing it up well. Hearing the bathroom door unlocking, she sprinted back to her seat and set down the soda, resuming her innocent act. 

Baron splashed cold water onto his face, grimacing as he leaned over the sink and huffed, staring at himself in the mirror, trying to will his erection away. After a few minutes of thinking about everything from math problems to the time he accidentally walked in on his naked dad, he was finally able to get his cock settled down at least somewhat, stepping out from the bathroom and sitting back down next to his sister, the girl smirking slyly as he downed a huge gulp of his drink to ease his parched throat. The rest of the night went by in much the same fashion, both of the Australian shepherds on edge and trying to keep the other from seeing their tension, the movie finally ending as the sun dipped behind the treeline, the siblings getting ready for bed. Baron slipped into his own room, closing the door behind him and quickly getting his clothes off, his hard on nearly breaking the band of his briefs as he sat down on his bed with a sigh, his dick so hard that it nearly hurt. He slid his underwear down below his balls, his shaft bouncing up and resting against his belly, a slight smirk on his face as he marveled his own length, never having seen himself quite so hard in his life. He grabbed his phone and attached his earbuds to it, slipping them in his ears as he laid down on his bed, his face lit up by the screen as he quickly opened up the Internet browser, desperate for something good to quickly relieve some pressure to. Right outside of the teen's door was a curious pair of ears, Leanna sitting with her back against the door and a pair of fingers circling her wet cunt, listening in for any sounds that might tell her that her plan was working. The brother had lived alone for a good while, his skills in the art of subtle masturbation having gone slightly rusty, tiny huffs and lewd smacking sounds carrying out into the rest of the apartment, the girl smiling victoriously as she stood up and grabbed the door handle, carefully pushing it open. 

Leanna peeked through the small crack, seeing her brother laying on his back, immersed in a video of a feline stripper taking a dalmatian and a dragon at the same time, his free hand wrapped around his red rocket, furiously polishing the shaft. The first sight of his cock was enough to make her light headed, every molecule in her body telling her that she needed him inside of her, the fact that the two were family not even a blip on the girl's radar anymore. She stepped inside of the room and closed the door behind her, the quiet sound enough to finally alert Baron to something being off, his tongue lolling out of his maw as he quickly glanced over his shoulder to see what was going on, giving his best deer-in-the-headlights impression as soon as he spotted the cub standing there with a grin on her face. After taking a few seconds to process what was happening, he quickly tossed his phone aside and ripped the earbuds out of his head, yanking his blanket on top of his lower half, a bulge still very visibly sticking up through it, 
"Leanna! Wha… what… what are you doing… here?" 
"I heard some noises, I thought that maybe you were still up… and needed some help~" 
"Help? What… do you mean by… that?" 
"You know…" 
The pup grabbed onto the front of her skirt with both hands and hoisted it up, spreading her legs slightly further apart to show off her bare cookie, a drop of her nectar dripping onto his carpet as he stared wordlessly, too shocked to say a word but too entranced to look away. She opened up one of her hands, showing off a small blue wrapper, the boy recognising it as a condom, her breath fogging up in the cool air as she moaned, 
"I think we could help each other out~" 
"N… no. No. No! We can't… no!" 
She stepped closer, slowly spreading her pussy lips open with her free hand, 
"It's just to take care of my heat, and with a condom there's no risk of anything, right~?" 
Her scent began overwhelming him, her words making an odd amount of sense to the young man drunk on pheromones. Leanna knew that she had him on the hook, needing only a tiny little push to seal the deal, 
"And if you don't… I'll tell mom about all of this." 
The threat of blackmail was enough to break him down, though he didn't entirely know whether it was actually the threat that did it, or if it was just an excuse he was telling himself. He sighed and sat back up, shuddering in pleasure at the sight of the young kid,
"Fine."

Putting on her best sultry smile, Leanna swayed her hips as she walked right up to her brother, gently laying a hand on his knee, just the touch alone enough to make him recoil and moan in pleasure, a spurt of precum hitting the girl directly on her belly. She giggled as she knelt down, moving her hand up his thigh and towards his cock, very carefully caressing his sensitive knot and making him squirm even more. She had only had experience with her own fingers and some makeshift toys, but she hadn't expected just how big of a difference there was compared with the real thing even before penetration: the warmth of it, the twitching and throbbing, the constant stream of slippery precum leaking from the tip, the smell of a very desperate and horny male. She didn't know whether it was always like this or if her heat just made her hypersensitive to the differences, but she already knew that she'd have a hard time going back to humping pillows and toothbrushes after that night. She leaned forwards and swallowed the tip of Baron's red rocket, the feel of him inside of her making the cub go wild, even if it was just her maw. Her sibling was having much the same reaction to the blowjob as she was, the older shepherd straining and grunting as his whole brain felt like he was on fire with lust, every inexperienced and amateurish lick and suck from her lighting up every nerve in his body. Leanna knew that after a day of teasing and the little help she had spiked him with, the poor boy wouldn't last very long, her studies of oral skills needing to wait until after she had gotten what she needed from him. Still keeping him occupied by slowly licking at his shaft, the girl secretly grabbed the condom and pressed one of her sharp claws directly against the middle of the wrapper, seeing it pierce and sink through the plastic, a smirk on her face as she pulled her head out of his lap, standing up. 

With a quick tug, Leanna yanked her shirt off of her, the cub's chest still mostly flat, her nipples almost as hard as the boy's rod. She next slid her skirt down her legs, allowing it to drop down to her ankles before stepping out of it, the pair's gazes never leaving each other's bodies for even a second. She held the condom up to her maw, grabbing onto the side of it with her teeth before gently tearing it open, throwing the wrapper aside as she rolled the rubber over Baron's cock, the small hole she had punched in it almost invisible in the dimly lit room. He had to stop himself from whining as her fingers diligently slid down the length of his shaft, finally snapping the condom securely in place under his knot before climbing up onto his lap. The girl pushed him down, the brother obeying and laying flat as she straddled his crotch, feeling him throbbing against her. Eager to finally get rid of the annoyance once and for all, she grabbed onto the cock and pressed the head of it against her entrance, her well lubricated pussy easily allowing him to slide inside even though he was the cub's first. Leanna's tight spade gripped and hugged onto his shaft tightly, her subtle curves and textures making his legs shake as he buried his head into his bed, his back arching as he had to fight back his inner male instincts telling him to just grip onto the bitch in heat and knot her right then and there, a small part of his sober mind still functioning and trying to not hurt his younger sister. She moaned loudly as more of the dick entered inside of her, the girl's voice warbling and quivering, her legs closing around his hips as she began riding him, throwing her weight up and down. She could feel the condom ripping more and more as she bounced on his cock, no barriers between the siblings, her soft and velvety walls caressing his delicate flesh. 

Leanna and his brother moaned and panted in the dead of the night, the sounds of their incestuous love echoing out into the dark streets, neither of the two having clear enough heads to care about any sort of subtly or trying to keep their taboo act a secret. Though his rod felt wonderful, the cub still felt empty, needing even more of him, her eyes half closed as she took a long breath before driving her nethers down as hard as she could. Her cunt stretched wide against Baron's knot, her tail curling into a ball before her spade finally fully swallowed him up, the pressure against his knot and the feeling of being stuffed full making both canines orgasm almost instantly. Leanna collapsed down against his chest as she moaned and whined, her ears submissively pressed against her head as she nuzzled as close to him as she could, his hands grasping her ass cheeks as the first rope of cum shot out from his tip, splashing into her fertile womb. The rope was followed by a second, then a third, then a fourth, the young girl's pussy soon filled to the brim with her brother's seed, every spurt of cum collecting inside of her instead of being caught by the condom as he would've thought. The first sign of trouble arose as he glanced down, noticing a small trickle of white pouring out from her tied cunt, his eyes going wide as he very suddenly and quickly began sobering up, trying to coax her to get up and off of him, 
"Oh shit… oh shit! Get… you need to get up, Leanna, please!" 
"Wha… what's wrong~?" 
Baron rolled her onto her back, getting onto his knees and carefully sliding his knot out from her tight mound, the tattered remains of the condom and a wave of his sperm pulling out with it. He stared down in horror, Leanna simply giggling as she stretched her legs and watched more of her creamy filling flowing out, 
"Oh, whoops, I guess the rubber must've broken~" 
She grabbed onto his hips and pulled him down on top of her, burying her face against his chest and moaning, 
"Oh well, what are the chances that just one little accident would give me a litter, probably don't need to worry about that~"
Still too shocked to move or speak, Baron simply laid still as his sister cuddled up to him, her delighted moans quickly turning into peaceful huffs as she fell asleep, leaving him to imagine her with a belly full of puppies, HIS puppies.