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She couldn't believe it.

June simply couldn't believe she'd forgotten to take her pills that morning. She _refused_to, and yet, there she was, sitting in class, her thighs crossed tightly in her seat, and her mind in far away places as she tried to pretend there wasn't a tiny trickle of liquid streaming through the crotch of her already nearly soaking jeans.

Hers was a problem that many girls in early college were used to, and one that she'd foolishly forgotten to take care of that morning: the pills for her heat cycle. When she remembered to take care of them, there was no need for concern, but now, sitting in a boring history lecture, surrounded by any number of tasty looking males that all radiated a sexual aura, and worse, a scent that her keen nose was especially sensitive to in her aroused state, she wasn't sure how much more she could take. She'd considered asking the professor if she could duck out of class early, but the moment she felt her arousal leaving a damp spot on her jeans, she didn't dare to get up and stand in front of the class, worried they might mistake the stain for something else. As difficult as it was, she was struggling through her temptations instead of risking the embarrassment. It was certain to be a losing battle, though, and the clock was tormenting her with a painfully slow _tick, tock_counting off each second, and each time, it felt like no time had passed at all. She was trying to follow the second-hand all the way around the clock, but the harder she stared, the slower it seemed to go, and the harder it became to focus. Fears of someone seeing the subtle leak between her legs flooded back into her mind like the arousal into her panties, and she crossed them even tighter, her thighs unable to help squeaking together a little bit to tease her own nethers. Small marks were already left in her pencil from chewing at it absentmindedly, and her claws were leaving tiny divots on the notebook in front of her from rapping over it repeatedly. Everything about her spoke of a girl desperate to just get out of the class.

All eyes turned to the female border collie as there was a sudden, loud SNAP from the pencil finally giving way under the power of her fangs. Bits of wooden shrapnel flew everywhere and a piece of lead nearly got stuck in her fangs as the writing implement turned to tatters, and June was left holding an eraser with some splinters hanging from it.

"June, ma'am, is there a problem you want to share with the rest of the class?"

Her cheeks were instantly burning with a blush and her eyes, bright and blue, widened open at the other dozens of sets that suddenly trained their gaze onto her. "N-no, nothing! I'm just _really_hungry!" June replied, thinking quick to come up with a lie that might make sense for someone who just ate a pencil. "I haven't eaten all day..."

Her instructor didn't seem to have too much of a problem with the answer, though he wasn't exactly impressed at her behavior. "Well, you've made it this long. You've only got two minutes before you can run to the hall and grab some candy from the vending machine or something," the straight-laced man told her. Mr. Herber, an old badger who was every bit as strict as his fur was gray, didn't like to waste even a moment of his lecture time, and it wasn't the first time that June had accidentally drawn his attention. This time was much more embarrassing, however, as she was sure she could see some of the males of the class ogling her now, and their eyes were all trained down below her waist. _Oh no...oh no! They can smell it! They know! _June mentally panicked, and as sweat started to bead down her forehead, her nerves ablaze, she clenched the edges of her desk tightly and waited through two minutes that easily could have been two lifetimes for her. The simple white t-shirt that clung to her breasts was nearly stained with sweat around the collar by the time the lecture period was finally over, and her hypothesis was right; a couple males were rather slow to leave the classroom, and each one of them narrowed their eyes at her suspiciously, obviously having picked up on her problem and going through a moment of long deliberation about whether or not they should take a shot at a girl who was horny beyond logic or reason.

Luck was on her side, and the lecture hall slowly emptied out. June watched as the last couple students left ahead of her, and she ran down the stairs toward the stage, right past Mr. Herber.

"June, if you don't mind staying, I'd like a wor-

"NO TIME TO TALK I'M STARVING BYE MR. HERBER!"

June was moving almost as fast as her voice, and by the time Mr. Gerber put up his pawtip to make a point, June was already slamming into the double doors to exit the hall and well on her way out.

"...Well. Never mind then."

Once she was outside the lecture hall, June never stopped running. She knew her way around the history building rather well by this time, and she stuck to the less occupied hallways as she made her way out to the parking lot, paws still in a dead sprint until she nearly collapsed over the side of her car, right in the front, in "rock-star" parking. The last thing she wanted was for anyone else to see her, and she knew that her inhibitions were at an all time low. She couldn't imagine what kind of trouble she'd get in if she hung around the college for the day, so as much fun as it might have been to go for a party, she did her best to gather herself and got into her car, gripped the steering wheel tightly, and took in a deep, long breath. Her chest heaved, breasts rising slightly and tummy expanding as she tried to calm down, and she held the breath for a few seconds, just as she'd learned to do when she dealt with her very first heat. She let it out, a long, cool stream of air pouring from her lips, and her grip on the steering wheel relaxed just a little bit. It wasn't perfect, by any means, but June at least trusted herself enough to focus on the drive home, instead of the males that she might see on the way.

_Thank goodness it's only a couple miles back to the house,_she thought, as she started the car and backed it out of the space. June really was a relatively normal border collie, despite her hurried and panicked nature; she could blame almost all of that on her unchecked heat. Normally, she was a happy and rather carefree canine, completing her general education classes at the local community college to save money and still living with her parents to save even a little bit more. She liked to party every now and again, but not so much that having her own place would really be worth the extra coin. She was still of the mind that she was going to be a social sciences professor herself, which meant starting off in some extremely boring history lectures like the one she was in today, and that often meant a drink or two after class, when the opportunity presented itself.

After a quick two mile shot up the main drag through downtown and a couple turns into a small, relatively new cul-de-sac development, June was already home and presented with a different kind of opportunity.

June didn't announce her entrance back into her parents house. She knew her folks were still at work, and no doubt, with his unusual schedule, her brother Diz would still be peacefully sleeping. What was normally a cocktail or two after a boring class simply had to be replaced by taking her pill. _Better late than never,_June thought as she locked the front door behind her and wiped her paws. Her parents had been some of the lucky few who picked up a foreclosed McMansion when the housing market completely crashed, and while it was far more house than four people could ever need, there was something nice and luxurious about having such a spacious place. Even better, having her room a little further away from everyone else meant that June could take her pill, head right to her room, and at least give herself some form of a release while she was waiting for the drugs to take effect.

She could do that...if not for the first thing to greet her when she came inside being a sudden aroma on the air that tickled her nostrils.

It was a male. Goodness, it was _delightfully_male. It was a scent that she'd rarely gotten a chance to whiff before, but she couldn't escape it. She had to power through it, and she made her way into the over-sized kitchen, the one that always made her feel like a bit of a dwarf. She reached up into the medicine cabinet, fumbling around and spilling pill bottles to the counter as she looked for her own medication. She was growing feverish in her search, and despite tearing nearly every bottle from inside the cabinet, her eyes shrunk down to pinpoints as she came to a startling conclusion.

_I've lost my medicine...fucking hell, I've lost my medicine!_June cursed herself, looking over all of the bottles a second time just to be sure, and tensing up, biting her lip in frustration as she couldn't seem to find the only kind of medicine she needed. She'd have to spend the rest of her day outside, away from others. She'd have to have someone go to the store for her and get some kind of over-the-counter suppressant so she could at least make it through the rest of the week. She'd have to spend the rest of those days locked up in her room, hoping and praying for some kind of privacy...

...Or...she could go investigate the source of that scent.

"It's Diz. It has to be," she rationalized, knowing no one else could have been around to leave a scent in the first place, and if her parents had done something together before they left, she'd able to smell her mom, too. Instead, she could only smell a male, and imagined, as gross as the thought was, that her brother must have been doing something by himself before he went down for his afternoon sleep.

She was loathe to even think about all of the things that her brother did when she was away at class. He worked an unusual, night time schedule, which provided him with lots of privacy during the day, and lots of privacy for June during the afternoon, but she didn't even want to imagine how he spent that time. It was a downright repulsive thought.

So why were her paws carrying her across the kitchen, down the wrong hallway, towards his bedroom instead of her own?

"Stupid, perverted brother, leaving the house all thick with his scent when I get home...so what if he doesn't know that I'm on my cycle? He should be more courteous than that anyway!" She told herself, working up her own attitude as her paws quietly settled on carpet and she moved down the hallway. Again, despite everything that she was telling herself, her body didn't seem to want to listen, and she was still headed for the door. But what fruit could a confrontation bring? What good could it possibly do?

_Why...why is my paw on this door handle?_June asked herself. She knew the answer, and simply didn't want to acknowledge it. She knew why she'd come this way, even if she didn't want to admit it. She was intoxicated, drunk with lust, completely at the mercy of her heat, and without any pills to help dull the effect, she did exactly what nature intended for her body to do...

Seek out the nearest male and bed him until the fires within went away.

The door handle turned easily, the bolt coming free with a quiet _click_as the whole thing slowly swung open. Diz rarely took care to lock his door, even when he was sleeping, and right as rain, he was laying there in his bed, naked as the day he was born and drooling on his pillow, sprawled out to the side in nothing but his trademark red bandana. Nearly the same shade of red was the half erect length that was poking out from the rather alluring sheath between his thighs, and whether it was the product of an erotic dream, or the remnants of what he'd been doing before June got home, she wasn't really concerned with the details. She eyed his length diligently, licking her lips and letting out a quiet, low rumble of approval, so low that it didn't quite wake her brother.

W-what...what am I doing? What am I thinking? That's my brother!_She tried to stop herself, remembering the only thing about the situation that seemed even remotely logical. She might be horny, well past the point of need, even, but the male sprawled out across the covers so carelessly was _still her brother. No matter how deep her need for a male, no matter how badly her loins ached for a proper mating, not just a climax, she couldn't possibly be considering taking the next step.

Her mind was in the right place. Perhaps her heart was, too.

Her body wasn't, and a part of her body, one sneaky, deft paw, was already down into her arousal stained jeans, rubbing at her slit under her panties as she ogled his cock like a hungry young girl ogled a corn dog at the carnival when she hadn't eaten all day. Though it was muffled, anyone within earshot would pick up on the quiet, rapid shlick shlik schlick as June put her folds through their paces, her pawtips sliding all the way down over them past her palm, then back up, spreading her labia open and then rubbing them, working the arousal into her flesh as she lowered her head in a moment of shame at what she was doing, but it was simply perfect. She _knew_that it was wrong, but as a pawtip dipped inside of her entrance and tried to satisfy her needs, she knew it was exactly what she needed, too. It was depraved, but she could easily keep it a secret; no one had to know as long as her brother didn't wake up, and as a tiny, shy whimper passed her lips, he didn't budge even an inch. As long as she was able to keep things mostly under control, June would get away with the whole thing, and that made it feel even raunchier, which was just what she needed right then.

That very lack of control, however, would be her downfall.

She scarcely noticed that her footpaws were still carrying her through the mess of dirty clothes, magazines and unopened mail on the floor. She hardly paid attention to the fact that her paws were unbuttoning her jeans and already, they were wiggling down from her hips, showing off a pair of light blue panties that were stained all the way to a dark navy at the crotch. She barely had a recollection of her pawtips reaching out to grasp the bright, red, veiny member in front of her.

By the time her senses came back to her, it was already far too late, and Diz wouldn't be asleep for long.

_Don't do it, don't do it, don'tdoitdon'tdoit_June's mind was racing, and for a long, solid minute, time slowed as she watched her still glistening pawtips approach the length before her. It wasn't too late; she could still pull her pants back up, try to take a cold shower to wash away the heat and pretend none of this ever happened. There was still time.

Time went away as she gripped the base of his sheath and completely engulfed the half-full length in her maw, swallowing it into her throat and hoping to urge more of it out of the sleeping border collie. "Mrnf...mnnn..." she moaned hungrily around what she could get, having flown right past the point of no return without a second thought, giving up to reckless abandon and throwing fate to the wind. She had only one rational thought left, that being that there would almost certainly be consequences from her actions, but right now, need outweighed logic, and she would cross that bridge when she came to it. She could already feel her brother stirring, and she didn't care. She didn't want him to move, and she didn't want to risk him getting up in a panic, but right then, she simply couldn't overcome the need to swallow her brother's cock over and over, as if she were already expecting some kind of a load.

A quiet, groggy "Nngh...whathufug..." was the only real response from Diz at first, who had been sleeping so soundly that he really never even noticed June entering the room. His body twitched and jerked a little bit in reaction to being touched in such a sensitive area, but he really wasn't awake, not even a bit, until the heat of June's breath caressed over the head of his canine length and brought it back to life. It was already growing in her maw, whether or not Diz wanted it to, and she accommodated it perfectly, letting the extra length push down into her throat with a rumble of appreciation. Diz was still trying to rub the sleep out of his eyes when the pleasure of the action finally hit him, but not one moment after the pleasure rocked his body did he look down and realize who it was that was latched onto his cock like a leech.

"June?! What...what the hell?! What are you doing?!"

The panicked reaction did nothing to dissuade his sister. She only looked up at her brother with blue eyes that were glossed over with desire, drunk with need, and they instantly melted the chocolate brown of his own orbs. Anger set in after the panic, but it was short lived, something that Diz was unable to hold onto while his flesh was being so expertly worked over. "June...I dunno what this is about, but it's gotta stop, and it's gotta stop now!"

June did pull away for a moment with a subtle schlup , as she'd already made a rather sticky, saliva-coated mess of his cock. "You've got it all wrong, brother mine," June quickly replied. "This can't stop. Not now. I've gone way too far for us to turn back..."

Diz was still trying to decide if he was dreaming, his eyes a little fogged over and his mind still cloudy, but there was something more real about the sensations by his thighs than anything else he'd ever felt before. June wouldn't be his first, but whether it was the heat, or perhaps something darker that hadn't been touched on, June knew how to take a length, and she knew how to take all_of it. Still so tired, Diz had a momentary thought of praise for his slightly younger sister at how skilled she was, but he immediately rushed it from his mind. "Y-yes, now!" he shot back, trying to keep his gasps to a quiet minimum. He simply _couldn't enjoy this. "I'll drive you to t-the store to get you more pills...nnngh damn it...but that's it! This has got to stop!"

"You don't listen very well, brother," June pointed out, holding his now fully erect length in one paw and licking the very tip of it, her tongue swirling about it like an ice cream cone that she wanted to savor, and let melt all over her lips. "I'm not stopping until I get exactly what I want, even if I have to take it..."

It would have been shocking to see June pull her paw free from her panties, but she did just that, smearing the arousal that stained her paw right across Diz's muzzle and giving him a sultry grin. He tried to back away from the gesture, but he was already up against the headboard of his bed, leaving his nose to be covered in a scent that he'd gotten before, but never from his own sister. It was almost intoxicating to be covered in the aroma of a girl so deep in her heat, but for the moment, he was able to keep a level enough head to avoid going too far.

It wasn't stopping June. "Sis...June, listen, we just can't do this! You have to stop!"

"There's only one thing I have to do, my dear Diz."

"June...no..."

"Oh yes."

**

"Diz? Are you home?"

There was a car in the driveway just as Joshiah suspected, just as he'd been told, but Diz was supposed to be sitting up on the couch in the living room, waiting for him when he entered. Instead, the house seemed to be completely empty. He knew that no one else was likely to be home, but there was only a little sound coming from the bedroom down the far hallway.

"Lazy ass must not even have gotten all the way out of bed yet," Joshiah mumbled to himself as he took a stroll through the kitchen. The place was always loaded to the gills with snacks, and he was definitely feeling a bit peckish, but any thoughts of hunger were completely erased when he saw the scene in the kitchen. Pill bottles scattered everywhere, the medicine cabinet still left open, a mess on the floor...all signs pointed to evidence of some sort of struggle, and it wasn't the kind the coyofolf wanted to think about. Trying to contain his panic, he left the mess behind and ran down the hallway, skidding to a stop on the carpet, and readying himself for the worst case scenario. He nearly called out in panic...

...But instead, he completely lost his voice as he looked into the bedroom and saw June, Diz's younger sister, tying him down to the bed. By the look of it, Diz wasn't playing along, either; he was struggling against some homemade restraints of t-shirts that were used to tie his ankles down, and his left wrist was already tied down to the headboard. June was working on the right wrist when Joshiah saw what was going on, leaving him completely speechless. He wanted to say something. He had to say something. But then...he caught the scent from June, and knew exactly what was going on.

This...this is insane... he thought, as he watched June finish up the makeshift bondage on her brother's bed. Diz wasn't going anywhere anytime soon, just like June wanted, and almost entirely through intoxicating him with her extreme arousal, she seemed intent to break him.

"Still struggling so much...why doesn't my sweet, older brother just lay back and enjoy this, like I'm going to?" she asked, grabbing the headboard tight in her paws as she lowered herself to straddle his muzzle, instantly soaking it with a fresh coat of her arousal. Diz was already dizzied by just how strong her scent was, but now, he couldn't even try to escape it, and despite his strong sense of character, his willpower was starting to fade. There was no other way out of this. "Now lick me clean, big brother...tongue fuck my hot little pussy..."

Diz couldn't believe his bad luck, that he'd popped a boner in his dreams, and that he'd fallen asleep naked. It was a mix of bad luck and plain old bad planning, but now, he had to sit in the wallows of all of it as his sister bounced her slit gently against his lips, riding him with a desperate cry as she just wished he'd get on board with her idea. She might be dominating him, but she was being dominated by lust, and though Diz still wanted to pray for some sort of way out of this, the reality was setting in that his only escape was to comply with June's commands.

It was a very subtle, small taste. Just a quick, experimental lick that finally told June that Diz had been broken. Just enough for Diz to experience the exotic and sweet taste of his younger sister a little bit, just enough to know it, and nothing more.

He was remiss to admit he enjoyed her flavor.

_She's sweet...a little tangy, but so sweet..._Diz thought as his tongue went for another pass, and June squealed in delight at finally having some form of relief from her heat. Her arousal was so strong that it was enough to turn even her steadfast brother onto the idea of an incestuous mating, and though neither one of them was aware, they were putting on a show that one voyeur would never forget.

"Diiiiiiz! Yes! Good brother!" she called out, patronizing him and bucking her hips against his muzzle as she shamelessly face-fucked him, spurred on by the natural needs of her body. The only thing keeping her from doing this even longer was the need for something much more fulfilling than a tongue, and even though Diz was settling into the idea, probing his tongue in a little further and taking a more intimate taste, it wouldn't be anywhere near enough to satisfy June, and both of them knew it.

That's why it came as no surprise to Diz when June slowly pulled her hips back and scooted down over her brother's body, intentionally grinding her pouting, drooling labia over his chest and his tummy to leave a streak of her arousing scent on his body, messing up his fur and leaving it stained with her juices. She grinned down at him the whole way, a devilish, wolfish grin if there ever was one, and the expression never faded from her face, only faltering slightly as she bumped into his gently pulsing length. "Looks like someone is finally on board with the idea of fucking his little sister," June teased him, reaching back with a paw and grabbing the base of his length to give it an experimental squeeze. "Nice and hard...just what I need. Is this for me, Diz?"

June just wanted to hear him say it. His body was already telling her more than his voice ever could, but for some deeper, darker, naughty reason, she wanted to hear the words from straight from his mouth.

He was bound. He was tied, trapped, and knew there was no way out of this, other than to comply with his sister's every wish. And yet, even if that wasn't the case...

"I...yes. It's all for you, little sis. Big brother's cock is all for you, June," is exactly what he said, and exactly what he would have said, in any other situation.

June wiggled her rump, soft and curvy, right up against the stiffened length with a giggle of delight. Somehow, her heat made her an entirely different person, and yet, it brought out that same bubbly and joyful personality that Diz was used to, just in an entirely different way. He didn't want to admit how much he was enjoying this, or how right it was starting to feel, but he didn't have a choice when June pressed her paws down into his tummy and arched her back, lifting her haunches just enough to let her heated sex settle on the tip of his length. "Mmmm...nice and warm, and I can already feel it drooling_precum on me. You really wanna fuck your little sister, don't you Dizzykins? So naughty of you..." She was teasing him all the way, completely influenced by her heat and taking on a playfully dominant role as she started to guide herself down onto his cock. The head slipped in past her folds easily, and finally, that evil grin started to fade as her lips formed into a small "o," just a precursor of the shameless, pleasured moan that was to come. "_Ooooooh yes...that's it, Diz! That's what I've been waiting for!"

Diz didn't know what to expect. He'd never thought of his sister much in a sexual way, even when she came of age in high school, filled out, and settled into a rather sensual body with a pair of full, soft breasts, curvy hips, and a rump that rounded off perfectly to frame her tail. Now, the stark realization that his sister was a bit of a bombshell was crashing down on him all at once, the same as her passage was crashing down on his cock, and though it was a slow, easy process at first, June would only let that first pass go so gently. It took a couple moments for her to take the full length of her brother inside, but once she was comfortable with the way it filled her, and the silly, goofy grin on her face made it clear she approved his presence, she really did come crashing down on him, lifting up just so she could slam her hips back down onto his body, hard. She was in heat, and she wasn't in the mood to mess around any longer. "Holy fuck!" Diz cried out as his sister showed off just how skillful her hips could be, changing pace so suddenly and engulfing his cock before he had a chance to adjust to the sensation. "B-big brother would do anything to help you, June...and he'd _never_keep you waiting!" he assured her, his voice trembling with delight as he tried to keep pace with her, but she was being driven by a lust greater than any he'd ever experienced. In a way, he could feel her arousal pouring into him, and with her delightful scent on his nose and delicious flavor on his lips, it was only a matter of time before the male within him started to fully embrace this pleasure.

That didn't change the fact that, male or not, June was on top right now, and she was in complete control. Male and female, gender roles hardly mattered to her at this point, as long as she got what she wanted out of the encounter, and as her inner walls fluttered around Diz, teasing and clenching his cock in different places with each bump of her hips, she had a feeling she'd be getting exactly before too long. "Good brother. Don't keep m-me waiting too long for the finale, t-then!" she ordered, gripping the fur on his stomach tightly in her paws, tufts of white mixing into the black pattern on her paws as she tugged, trying to pull herself down even harder on her brother and ignoring his whimpers of slight pain from the act. She was driven, determined, and dominant, and a little whining from Diz wasn't going to change any of that.

His hips were actually starting to ache from how hard she pounded down on him, and her pace was lightning quick, shaking the bed furiously and filling the house with the sound of a squeaking, abused mattress. Diz could feel his sack flipping up and slapping his sister on the ass just from the sheer force of her movement, and he wondered how that wasn't leaving her a little bit sore. She was like a machine, and one he couldn't resist, or turn off. "B-but June, we can't! We...we shouldn't...Dear God...we shouldn't even be doing this! We can't do that!"

It was obvious what June wanted, and Diz picked up on it right away, but the excitement of their taboo encounter and the fact that they weren't using a condom aside, reality still had a strong enough grip on Diz for him to realize that flooding her womb while she was in heat would almost guarantee a litter of puppies, and one that neither of them could possibly handle.

"Did you just...just try to deny me, Diz?"

The male border collie nodded silently, the tone in June's voice enough to keep him from speaking. She came off as powerful, and to be defiant to her for even a moment would almost certainly have dire consequences.

June set right out to enforcing them, as she picked up the pair of discarded, soaked panties from the edge of the bed in a paw and stared her brother down with disdain. "You are cumming inside of me, Diz...you are going to fucking fill me, and there isn't a damn thing you can do about it!" she growled harshly, reaching forward and stuffing the arousal stained panties into his face. He was about to cut her off in reply, so the timing was perfect that the soft, once innocent cotton stuffed his maw and left him gagged, unable to argue out a reply, and June smiled once again at the sight, watching as Diz struggled to make a sentence. "Much better...no more arguing with your little sister now, Dizzykins. She knows best!"

Not that he could argue, but Diz was rarely one to argue with June at all. Now that he couldn't, June picked up on her pace as if she hadn't missed a beat, pounding her brother down to the bed hard and pleasuring him every bit as much as she pleasured herself, letting that lust that she couldn't deny guide her and use her body in ways she could barely control. It wasn't easy for her to squeeze her inner muscles in multiple places, usually, but under the guise of her heat, she was clenching and milking Diz like a pro, her soaking, slick, tight passage clamping down on him near the base when he was fully inside of her, and squeezing upon the tip when she lifted herself, as if she was suckling the tip in her maw. For every trick she pulled out of the bag, Diz found himself flirting a little bit closer to the edge of an orgasm, and if not for the last bit of fight he had left, he might already be there...but there was a sweating, panting border collie female riding him perfectly, dominating him and milking his cock internally in a way he'd never known before...she was so sweet to the taste, and her scent was so aromatic that it was literally acting as a high for him. Her paws raked through his fur, and her breasts bounced delicately with every hump, when she wasn't cupping them in her paws and squeezing them to put on a show for her brother. This girl...this lovely, sexy young canine was completely working him over and rocking his world, just to coax a little cum out of him...

_...So what if she is my sister? I...I can't...I can't resist this anymore...she's too good...she's too fucking good!_Diz mentally conceded, and his eyes rolled back as he gave in to the fullest extent of the pleasure that June could give to him. She didn't have to change anything about her approach, but now that Diz was fully receptive to the idea, he moaned out in muffled delight against the panties that stuff his maw and stopped being so tense, letting the pleasure fill his entire body from head to toe, sending chills down his spine and causing a pleasant warmth to build in his tummy. June grinned once again, one eye winced shut as she looked down at him, and knew that she'd broken him down enough to get what she needed to extinguish her heat.

"Good boy, Dizzykins...I can feel it, you're getting awfully_close!" she called out, panting heavily herself and knowing that her own orgasm was well on the way to striking her down. Impatient enough as it was and dealing with her heat still, June reached back with a paw and cupped his sack, squeezing it in time with the clench of her inner muscles, trying over and over again to milk his cum from him. "I need it...your sweet, _innocent little sister needs it!"

Though her words were a downright lie at that point, Diz was enjoying the mental aspect of her teasing almost as much as the physical. With his inhibitions broken, the sudden squeeze around his sack was all it took for the flood gates to open, and without a proper warning thanks to his gag, Diz erupted, his cock tensing up inside of June and spitting stream after stream of hot, thin canine cum deep into her body, all the way up into her womb. June could feel her brother's knot starting to press up against her labia and she redoubled her efforts, slamming down with such force that she had to slow her pace down to build up the strength, but each consecutive thrust downward pushed the knot in a little further, and as forbidden seed coated her inner walls with a thin glaze, June gave into her own orgasm, rewarding her brother with the uncontrollable fluttering of her inner walls. Needing something stronger to cling onto, she released his sack, getting a fresh flood of his seed into her passage and forcing her to dig her claws into Diz's shoulders, leaving deep, dark red marks in his flesh as she unintentionally marked him. Hers was a powerful climax, bordering on violent as she thrashed against her brother, anchored down only by the fact that his knot was finally stuck inside of her with a wet, slick POP!

"DIIIIIZ! Fuck...me...yes! Gimme all of that cum, big brother! Fill me!"

Their Peeping Tom could hardly believe his eyes. The pair were definitely tied, knotted together, with excess cum pouring out of June and staining her brother's bedsheets. She could feel the warmth of that delightful, taboo seed tickling her womb, filling her in a way she'd never been lucky enough to experience before. She finally gave up, accepting that they were tied together from their incestuous act, and started to settle down a bit. Her shoulders visibly relaxed as she started to lean over on her brother, pulling the panties from his gasping maw and looking at him with a grin that was softening down into a warmer smile.

"June...d-do you have any idea what you've just done?!" Diz asked, still gasping quietly and trying to act like he wasn't a willing vector for the act.

June didn't look nearly as concerned. Instead, she finally looked relieved, and even though she was starting to come down from her heat, she didn't seem to have any problems with the fact that it was her brother who helped her out of it. "You don't really have a very good understanding of how that medicine of mine works, do you? You're supposed to take a pill a day until your heat fades...but if I take a double dose, it'll force me right out of my heat and I won't be able to get pregnant at all. It's not natural, but...sometimes, you have to plan for the worst, y'know?"

Diz wondered how his sister learned that, but he wasn't about to ponder it, considering what they'd just done. He was simply grateful for the knowledge. "Then...this will be okay?"

"Of course," June replied quietly, offering her brother a tiny, affectionate kiss on the nose. She didn't want to show him too much romantic affection...not yet. "But you still have to take me to the store to get a dose."

"And you have to untie me first," Diz reminded her, his cheeks immediately flushed at the little kiss. She's never been this affectionate to me...she's always been nice, but not like this! What's going on...?

June was already working on the restraints around his wrists before he made his request, and Diz was happy to be freed from them. "Of course. Can't drive a car with no paws," she pointed out. "I...I'm sorry about all of that, Diz. I didn't mean to burden you with my cycle like that..."

For the first time since she'd entered the room, Diz could see a hint of regret in June's eyes, but he didn't want her to feel guilty. "We all have urges and needs, June. I was never prepared to go that far to help you, but...let's just say I took you to the store to get something else, and we can keep this between us, okay? Your big brother is more than happy to look out for you."

Exactly what "looking out for her" meant would be the subject of much debate for Diz in the near future. Still tied together by their canine anatomy, the situation turned just a tad awkward, as June was trying to deny the affection that she was developing for her brother, something much more than a sibling should feel...and Diz didn't know what to think. A shy smile and a locking of eyes was shared between the exhausted border collies, and they could see an uncertainty in each other.

"Let's just get to the store and go from there," Diz said, offering all of the comfort that he possibly could.

Something was still escaping his mind, as if he forgot something, and June thought she smelled another male, now that she was calm, but they each ignored it as they simply sat in the pleasure of their messy situation.

At home, on the patio of his apartment, Joshiah cracked open a bottle of In-Heat Wheat Hefeweizen and contemplated what to do with the pictures and video on his smartphone.