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"Are you seriously putting your feet on the couch again?"

"If you're gonna sit there and flip through channels all day, then I'm gonna make myself comfortable while you figure out what you're gonna binge watch."

Mack sighed. "I swear, you had better manners than this went I skipped town last year..."

"And you were a lot more decisive before you left," Chase argued. She didn't think her brother was going to make any bigger a stink about her words than that, but she should have seen the pillow coming before it nailed her in the face. "...And a lot fucking easier to get along with!"

"Can't help that some of us decided to grow up while we were out and away," Mack replied, his voice defiant and high-brow despite the pillow he'd just thrown at his sister. "I didn't even have to go to college to figure out that I had some maturing to do, but I can clearly tell that you're not ready for the big leagues just yet."

The pillow was playful enough, but Chase ended up throwing a book back at her brother, her eyes narrowed with a growing sense of frustration.

For whatever reason, since her brother came home to spend his gap year with the family, he and Chase just didn't get along as well as they used to...and it was tearing their little family apart, day by day, until the parents weren't sure that they could do anything to put a stop to their bickering.

"...Seriously? Who throws a fucking book?"

"Someone who's really tired your shit," Chase answered, her voice dry as the pages of the book itself. "I thought you were smarter than that."

"And I thought you were smart enough to figure out how to use a book by now, but if you can't even read yet, are you sure you're ready to graduate next month?"

"Oh, fuck off."

They didn't realize that their conversation was being listened in on, but as their father came around the corner of the living room, he was shaking his head, looking genuinely distraught by their exchange.

This wasn't the usual, playful nature that they had when they teased each other growing up: objects were being thrown, tones were venomous, and the young canines were looking at each other the way one might look at their worst enemy, rather than their sibling.

It pained his heart to see his offspring in such a state.

"Alright; enough is enough," Sebastian made his presence known, and like the young collies they were, both Chase and Mack immediately sat upright on the couch, as if that was going to keep them out of trouble, or prevent a further punishment.

Of course, being 18 and 20 years old, respectively, they were adults, and had to live with the results of their decisions, no matter what they were: as long as they were living under their parent's roof, however, Sebastian wasn't just going to sit by and watch his family tear itself apart.

"We've give you two ever chance to act like adults and figure out your problems without intervention, but if this is really how you're going to spend the entire summer together, I'm not gonna stand for it," their father continued. "Your mother and I have talked it over, and we found a family counseling location in the area with fantastic reviews. They specialize in sibling behavioral issues, a-

He couldn't finish his offer, cut off by the sound of both of his children groaning at the idea.

"No, no! You don't get to protest this one! You two have had months to learn to like each other again, or at least tolerate each other, and no matter how much we encourage you to look past your differences, you won't listen!"

"Not my fault that she turned into such a bitch while I was away," Mack suggested. "I've been trying to extend and olive branch, but she keeps snapping it in half and throwing it back in my face."

"Throwing a pillow is what you call an olive branch?" she demanded.

"Throwing a book is what you call adequate retaliation? Not like a pillow is going to hurt you!"

"I guess I should have known better: being forced to read might actually kill you."

Sebastian groaned. "Aaaaaand we're gonna be moving that appointment up, after all..."

**

"You can join in on this first session, if you like."

"No, no...I think I'll just stay in the waiting room and talk things over with you later on," Sebastian was planning ahead, hoping for the best from this first session. "If you can just get these two to sit on a couch next to each other for an hour, I'll consider it a success."

The counselor nodded firmly, but there was a chuckle of levity to elevate the gesture. "Honestly, I can feel a little animosity here, but I think these two just need to hash things out with a professional to help them turn the dialogue in a more productive direction. Is there anything else you need today, Mr. Shaferhund?"

The border collie shook his head and stepped to the door. "Hopefully, that'll be all, but I look forward to consulting with you again soon and hearing some better news."

Closing the door behind him, the father left his kids alone with the counselor, having no choice left but to believe that a professional might help them set the record straight and rediscover the friendly relationship that they held growing up.

A canine himself, the counselor was a black Labrador with comforting eyes of chilled caramel and a smile that spoke to a familiar scene: he'd known plenty of pairs of siblings that, for one reason or another, fell apart as the years went on.

"Well, you two have shared the couch for a few moments," he joked, opening with a bit of levity. "I guess that means my work is done here!"

With Chase crossing her arms upon her chest and Mack rolling his eyes at the same gesture, the counselor knew he had plenty of work ahead of him, but he wasn't going to give up just because his first tease fell a little flat.

"All jokes aside, my name is Richard Walters: you can call me Rich, Richard, or Dr. Walters...whatever makes you feel more comfortable to have me around while we have our little talks. It's a pleasure to meet the two of you."

Clearly, they weren't into the meeting just yet, as both siblings cast a quick glare at the counselor, but they refused to do the same thing for more than an instant, as they looked back at the opposite sides of the floor thereafter.

"I understand that this kind of thing can be a little awkward to start off with," Richard confessed. "There's no shame in needing a little extra time to warm up to the process of counseling, and certainly no shame in having a little difficulty getting to know someone again. I understand that you two spent a little while apart; is that right?"

"Mister 'I need to find myself' skipped his first year of college and went adrift or something," Chase spoke for her brother. "And when he came back, he turned into an absolute tool."

Her brother was always taller than her, but once upon a time, he'd been slimmer, too: his body was still mostly slender, but his recent malaise left him with the start of a small gut at the base of his stomach, not unlike his father.

"Do you think your time away changed you, Mack?" the counselor asked, wanting to hear the truth from the boy himself.

Mack knew there was another question waiting on the other side of his answer, but with a quiet huff, he looked up from the floor. "I guess it changed me a little? It made me feel like our parents were always really hard on us, and being out from under their roof, I had a chance to explore and find myself at my own pace. Now that I'm back, everyone thinks I'm some lazy slob, when I'm just trying to relax while I've still got a chance to do so."

"I didn't know that relaxing for a little while meant turning the entirety of the year into your personal sabbatical."

Chase should have kept that barb to herself, but ever since her brother returned, she felt nothing short of vitriol to his presence: where she once had patience for his occasional lack of effort, there seemed to be a hint of jealousy to the way she approached him, anymore.

"We all have to approach the challenges of life at our own pace," the counselor suggested. "It sounds as though there may be a little underlying resentment between the two of you...and though it may be a little uncomfortable, I suggest that we take our time approaching those feelings, letting them out as naturally as possible. What I seek isn't for you two to attack each other in front of me, but to tell me how you really feel about each other, as if you're confessing to a journal or a mirror."

He pressed the play button on his personal boombox, granting the awkward, silent air a reprieve: there came an eerily soothing melody as the Richard Walters saw the pair of collies immediately giggle and look a little confused, but their parents had already paid for the session...

...They weren't going to leave, if only for that.

"I know, I know...the calming music is a little cheesy," Richard agreed. "But I find it works wonders at helping people feel more comfortable around each other. Really calms the animosity and helps you to see one another in a way that you used to...or perhaps, a way that you never have before."

It was a little cheesy, but that calming music helped the pair of canines to settle down and open up to the counselor in a way that they rarely, if ever did for their parents.

**

"You kids ready for lunch?"

It was a lovely Saturday in late spring when Kodi, the mother of the bunch, was serving up sandwiches and potato chips: her kids would be the first to admit that a sandwich just tasted better when Mom made it, regardless of how able they were to make their own.

Sitting at the table next to each other and smiling bright, Mack and Chase were eager to fill their stomachs, but it was Kodi who felt a fullness in her heart as Sebastian came in from the back porch, wiping the sweat from his brow.

Nothing could wipe the smile from his face when a pair of fluffy tails swished about behind his kids, and even when they brushed against each other, they just kept wagging, undeterred by a touch that would have left them at each other's throats a week before.

"I just hope you saved a little bit for me," he murmured to his wife, pressing a quick kiss to her cheek and stepping around her to the fridge.

Kodi giggled as she set the plates in front of her kids; her tone was a bit more serious, but still entirely lighthearted when she leaned into the fridge with her husband, grabbing a small bottle of wine to match his can of beer.

"Do you see that, Bastian? Sitting next to each other at the table like a normal family...I never thought we'd see anything like it ever again!" she cheered into his ear, hardly able to contain her joy. "You and I need to get a hotel one of these weekends so we can celebrate without worrying about how late the kids are up..."

The idea was such that Sebastian nearly hit his head lifting out of the fridge, but he gave his wife a knowing grin and a quick, agreeing nod. "As soon as the counselor says he thinks they can quit their sessions, I'll book us a room at the swankiest place I can find downtown, and we'll celebrate the way we did before we had kids."

Kodi snuck a grope of her husband's firm, tight backside and stood up with her own drink: the kids were so occupied with smiling at each other that they genuinely didn't notice their parent's playful flirting.

**

Two weeks into their sessions, one might have thought that Mack and Chase were already at a point that they didn't need to go to their appointments anymore, but their father had paid for two months in advance: he wanted to make sure that any problems they had were completely ironed out, and any new problems that might arise would have a chance to be dealt with in a controlled environment, as well.

Eventually, his daughter was going to go off to college and his son would probably do the same, but he wasn't going to let them leave each other's lives on such a sour note, if he could avoid it.

"Another...v-very successful session," Richard declared, seeming just slightly out of breath at the end of the matter. "I'd say the two of you have come a very...v-very long way from where you were when we started!"

It was a little odd that the twins were slightly disheveled, themselves, but it was nothing unusual for a counseling session to get a little intense when such powerful emotions were being released.

What mattered most was the fact that the border collies were smiling at each other in the aftermath, with Mack's mismatched eyes gazing down gratefully into the delicate pools of blue that were Chase's own.

"Thanks again for everything, Dr. Walters. Same time next week?" he asked, never looking away from his sister.

"That's right," he confirmed. "I've already got you two penciled in, and I dare to say that you're already one of my greatest success stories! I can't wait to see how much progress you've made the next time I see you."

The canines stood up from their couch, seemingly unconcerned with Richard's temporarily labored breathing; by that point, they simply expected it of the older canine, despite the fact that he didn't appear to be in poor health.

If anything, it was a sign of how well the sessions were working, especially when the pair were at the appointment on their own.

Mack drove, and Chase was happy to sit beside him in the front of one of the family cars as they made their way through a nearby drive-thru, deciding they'd treat themselves to lunch for losing an hour of their day to another session.

"You sure you don't mind paying? You've gotta be getting low on cash," Chase murmured, though she didn't have much of her own, being a full-time student. "We've gotta find you a new job, one of these days!"

That statement would have been a taunt and a jab at his unemployment, had it come even two weeks before then...but anymore, those were words of encouragement from a woman that wanted to see her brother grow up to be the kind of success that his father had been.

"I've been checking out applications around the area. I thought I was gonna go to school abroad when all was said and done, but there's a few great places to go to school around here...less than an hour away," Mack explained. "To be honest, when I first got back, I couldn't wait to leave again, but the longer I stay, the more I feel like I might have written off our area a little too quickly."

Nestled in the middle of a massive suburban sprawl, the Schaferhund family had the benefit of the proper country just an hour to the west, and the big city lights half an hour to the east; there were entire worlds to be discovered in the neighborhoods in between, and having lived there for so long didn't mean that Mack had seen all of them, even if he once believed that.

Thanks to his mending relationship with his little sister, he was starting to realize that.

"That'll be $22.50 for the handsome young man and his lovely little girlfriend," the drive-thru attendant mentioned; it would have been a stretch of a statement...

...If the siblings weren't holding each other's paws across the center console.

**

Late nights spent on the couch were perhaps the favorite pastime of Mack, who found himself curled up into the corner space of the sectional more often than he did his own bed, but he didn't have the same tight, demanding schedule that a student like Chase did.

She came home late on Fridays after she was done with her student government club, but she was surprised to see that Mack was already unconscious when she came in the door, slumped against the couch and only yawning when she closed the door too forcefully behind her.

"Kids: gonna be spending the night downtown. There's cash for a pizza on the table; we're so proud of you for all the progress you've made together," Chase read the note out loud to herself, trying to keep her voice down until she could see the tired whites of Mack's eyes blinking back awake. "Well...we gonna order from Cimino's or Nero's tonight, then?"

As she approached the couch with a smile, she felt her grin growing that much wider when she noticed the source of her brother's exhaustion: he'd been up even earlier than she had that morning, with a host of job applications and, perhaps more importantly, college applications littering the end table in the living room.

"Cimino's is always better," he replied, his voice groggy, but his tone telling of a smile that was waking up just as quickly as he had. "Half pepperoni, half sausage?"

"You've come a long way from pranking me and ordering pepperoni on the whole thing," the younger border collie offered her brother a compliment that would have been rare a month earlier, but she was delighted to plop onto the couch near him...and then with a sheepish curl of her smile, she leaned into his shoulder and nuzzled in close, as if she was bashful to admit that she'd come to terms with what she'd almost lost. "But if I'm telling the truth, I...I kinda like pepperoni now."

"Decided to give it a try while I was gone?" he asked, letting his smaller sibling curl into his side as his arm draped over her. There was a fluster about him, as well, but more than that, he was delighted to feel a comforting snuggle right upon waking up. "You didn't even leave the house and you ended up branching out even more than I did!"

Chase giggled. "Speaking of branching out, actually...I got a text from our counselor on the way home. He sent me this app...says he has to cancel tomorrow's appointment because of a last-minute emergency, but I guess this app will fill in for it? He's refunding dad his money for the missed appointment, too."

"That's awfully nice of him...but...an app? Did he prerecord something for us to listen to?" Mack asked, confused by the idea of a phone app that was sophisticated enough to take the place of an entire counseling session. "I don't really get it."

"I don't think it's that...pretty sure it's just some constructive thoughts and peaceful music to help us get along," Chase theorized. "To be honest, I'm not sure how much we really need this anymore, but...I think maybe we should give it a try? He bothered to send it to me, and I dunno about you, but I don't really have any plans for the night."

As far as Mack was concerned, spending the evening on the couch and watching movies while sharing a pizza with his sister wasn't a bad way to get his weekend started. He was surprised that she didn't have a party to go to; that was his typical experience when he was a senior in high school, but Chase was certainly a bit more driven than he was.

He admired that about her, but more than that, he was flattered that she'd come so far from throwing books at him...that she'd actually prefer to watch a movie with him than to go out and drink with her classmates.

"So...I'm thinking B-list movie night," Mack suggested. "We can just put the app on for background noise while we eat, and then, I'll mix us up some pina coladas and introduce you to some of the best drinking games you'll ever get to play in college."

Chase wasn't opposed to the idea, even if she was still a little nervous about having a drink: her parents raised her well, and somehow, she thought she'd get in trouble, or even get arrested for having a drink in the privacy of their own home.

She didn't have to worry too much about that, once the pizza arrived and the app was turned on.

**

There was something familiar about the loving stroke of Mack's fingertips along the back of Chase's neck...and she knew there _shouldn't_have been.

More than that, she knew she should have been disturbed by the way his palms slipped further and further down the bare fur upon her back, until he was cupping her backside and encouraging her to come in that much closer. Instead, she was all to eager to move her body in time with his request, but she didn't budge until the full weight of her ass was held in her brother's caring, eager grip.

"Guess you decided you wanted me on top, this time?"

Even those words carried more weight than she could realize: she hadn't put two and two together yet, and it seemed that she wasn't _going_to. She didn't have an inkling of just how corrupted the sound coming from her app truly was, nor did she think there was anything strange about the way that her eyes drifted down, past the shadow of her modest bosom and to the twitching tip of her brother's length.

There wasn't even an air of taboo about the act anymore, as she inched forward on her knees and pushed into his lap, taking it as if it were a seat that she'd sat in dozens of times before then.

"What can I say? There's no one else I'd rather have sitting there," Mack admitted, his lips curled in a warm and comforting smile. "As long as you still want to sit there, of course..."

Earlier, when Mack mentioned the parties that she was missing out on, Chase wondered if she might be missing out on a crucial part of the late high school experience.

Right then, she couldn't have cared less about the parties that were going on, and the way that her friends were surely making out and hooking up with each other in the bathrooms and closets in an oversized house in the clutches of suburbia.

With her brother's cock resting against the nub of her clit and twitching in place upon the sensitive spot, the only thing that could possibly matter more was to know that blissful sensation from the inside...especially when she knew that Mack wouldn't leave her hanging: her brother would put his thumb right to work the moment he saw an opening.

"Not gonna lie, I was kinda tempted to just lift my tail and bend over the side of the couch for you," Chase confessed. "But when I've got you right here, between my legs and looking like you're ready to burst, well...how can I possibly resist sitting in my big brother's lap?"

That was the first mention of their relation factoring into the moment, but there wasn't an air of forbidden nature to the way that she said it: if anything, Chase was simply using the words as a matter of normal, sibling affection, as though she were blissfully unaware of what a line she was about to cross.

With a simple, upward shift in her posture and a quick roll of her hips, she kissed the petals of her womanhood against the tapered tip of his canine member, slicking it dearly with a single pass through her entrance.

"Resistance is futile," Mack teased, snickering as he watched the delicate folds spreading around the head of his cock. "Or something like that..."

They were as close as siblings could be, emotionally: Mack was being a dork, quoting lines from one of their favorite old movies, and Chase was loving the warmth and affection she received from someone that she couldn't stand to be around, only a month beforehand.

It was such a dramatic change of pace for the two of them that there simply had to be something unnatural about the way they were behaving, but neither one of them questioned it a bit as Chase inched her way down, engulfing the tip of her brother's tool and wiggling from side to side as each inch that followed spread her bodice a little wider.

Slender and agile, Chase could take her brother around the world with ease when she was on top, but she needed to be properly warmed up, first: just handling his full cock was a workout all its own, but it was one she was happy to go through time and time again...

...As if the grin on her lips wasn't evidence enough, the reaching cup of her paws upon the underside of her small, tender breasts would have proven the fact just as well.

"Keeping your paws to yourself again?" Mack teased, watching his sister's chest disappear under the eager grope. "Such a well-behaved little pup...with such cute little tits..."

Chase narrowed her eyes for a moment. "I am not little," she protested, but his words still struck a sweeter chord within her, as she pushed her chest up a little bit, knowing she'd captured Mack's attention. "But you...y-you really like them?"

Being stripped down to their skivvies was a revealing act, and one that would leave anyone feeling vulnerable, no matter how much they trusted the person who'd relieved them of their fabric prison.

For her part, Chase was always terribly sensitive about the size of her bust, and doubly so with the knowledge that they weren't going to get any bigger...but her brother's approval was enough for her to move her digits aside, just slightly, and reveal the perked nubs of her nipples.

"I love them...to be honest, as much as I like to feel them against me when we fuck, I...I wish you'd just let me see them more often," Mack confessed. "And if I got to play with them a bit more, too...I s-sure wouldn't complain about thaaaaaat..."

His voice was nearly stolen by the eager, internal clench of Chase's womanhood as she settled all the way into his lap. Her hips were still squirming just a little bit, and the wag of her tail was evident from the inside as much as it was from without, but it was the fluttering of her inner walls that truly left Mack speechless.

He had his own kind, affectionate words to thank for the treat, but he couldn't find anything else to say as he sucked in a tight breath and gripped his sister's ass that much tighter, eager to keep her right where she was.

She wasn't having any of that: she was already up and moving, and her slender figure was bouncing rapidly on the point, only letting the very base of his cock know the freedom of the open air...moving any further from his length was simply out of the question when it filled her with such pure, physical delight.

For his part, Mack didn't need to feel anything more than that to be brought to the edge of his climax, but he wasn't going to give in so easily. He was a kind and caring lover, and his appreciation for his sister went further than the way that her rump fit so perfectly in his paws, or the way it was just so satisfying to feel that supple flesh mold to his squeezing demands.

He wanted to make sure that Chase knew how much he appreciated how much closer they'd become, and no matter how many times they bedded each other, he was dedicated from start to finish, keeping his paws busy and doing just what the younger canine had expected of him.

"Play all you want, big brother...there's no part of my body t-that you can't have..."

Her eyes lidded slightly when she felt his fingertips roaming over her hip and moving around her side, as if she knew already that her clit was going to come under a skillful assault.

It never ceased to amaze her what he could do with a simple press and roll of his thumb, but that extra weight, that _delicious_warmth, and the sheer level of talent he put into each movement forced her to bite her lower lip, if only for a moment.

Knowing that there was no risk of getting caught, Chase was more than happy to let her appreciation for his antics be known in a way that was greater than the struggle in her expression; sensual as it was to watch Chase biting back, quite literally, on her own arousal, it paled in comparison to the sound that finally came when she threw her paws down on her brother's torso and pounded her backside into his lap.

"Fucking...r-rub it harder, Mack..." she growled low, determined to get the point of her arousal across with a single phrase.

She knew nothing that followed would be a controlled thought; the font of her maw would flow with whatever expression came to mind.

"Yes, y-yes... yes! Swirl it j-just like that, Mack! _Nnnnoogod..._y-you're gonna make me cum, big brother...y-you're...m-making me cum!"

Throwing her head back and crying to the ceiling with such volume that she thought she heard the front windows rattling, Chase let out such a powerful, quivering release that she took her brother right with her on the ride: inner walls trembled, fluttered, and then seized around the invading cock, pulling the weight of his knot inside of her and locking them together for the first time...

...At least, the first time that evening.

"O-oh... damn, sis!" Mack joined her in the chorus of forbidden pleasures, keeping a thumb rolling over her clit and forcing her to dance on the razor's edge of uncomfortable bliss, all while her breasts were treated to his spare paw. "Don't think you've ever grabbed it l-like that... fuck!"

Something was truly spotty about his memories of their previous romps, but there was a moment of familiarity that came as he flooded Chase's womb with the first gush of his seed. The tie of his knot was simply perfect, ensuring that, even as she quivered and rolled in his lap, that nothing would be allowed to leak back out...and in that sheer, unbridled ecstasy, Mack finally lost his grip on his sister's body as he flopped back against the cushions, his cock swimming in mess of his own cum.

The volume was such that Chase snuck a peek at her own tummy, wondering if she'd be able to see the bulge of his knot through her pubic mound, or the weight of his yield in her stomach...but being able to see it would hardly matter in the face of feeling it.

That was more than enough to keep her orgasm dragging on, and each throb of Mack's length carried it just a little bit further, until the younger canine was hoping he'd be ready for a second round before too long.

Before she could even think to ask him for a second romp, however, something else crept to the surface...and just as impossible as it should have seemed for Chase to be tied to her own brother, this would have been just as hard to imagine, the way they were getting along before.

To say that they were resentful of each other at the start of the spring would have been a terrible understatement, but in that moment, as eyes locked and tiny, bashful smiles curled the corners of lips, Chase made a final connection, capturing her brother's paw and interlocking their digits; her heart skipped a beat when he didn't try to break free of her affectionate clutch.

"So, I know this...t-this is all gonna feel really sudden, and, I can't stress this enough: feel free to say no, cause I know it'd be so dorky to go back to prom when you've already graduated, but...I kinda haven't asked anyone to go with me yet, and I was kinda sorta wondering if you...y-you'd wanna take me to prom, Mack?"

In so many other cases, there would have been nothing unusual about someone being escorted to a fancy occasion by a sibling or a cousin...but no one at the school had any idea what Chase was doing with her brother just yet, and she had no reason to make them privy to such information.

The way that she was asking her brother to take her to the dance wasn't an act of desperation...she could have found another boy in her class to take her, were she so inclined to make the effort.

She just couldn't think of anyone she'd rather go with; she was sure that she'd be shot down by Mack, as if she felt the same fears thinking about him that she would have with any other crush.

"I'd be delighted to, sis."

"I know, I know; it was weird of me to ask, and I...uhm. Wait. What did you say?"

Leaning up from below, keeping his length buried within her all the while, Mack leaned in close and shared a tight, sudden kiss with his sister, showing her a level of affection that was truly rare, even after their counseling sessions.

"I said yes, you dork."

There was still just a little bit of teasing and playful banter between the pair of canine siblings, but whatever reprogramming had occurred in their counseling sessions, they couldn't have been happier to have given Dr. Walters a chance.

From an outside perspective, however, anyone else could have easily seen that something had gone too far...and the kids were too blinded by each other's affection to realize what a forbidden connection they'd made.

**

"You know, I think I can easily declare the two of you to be my greatest success story, thus far. I've had plenty of families come to me in times of crisis, and I've always managed to help them get along and reconnect their broken relationships, but you two have really taken things to another level, haven't you?"

Rare as it was that Mack would have skipped on a counseling session with Dr. Walters, he'd just recently started a new job, thanks to the encouragement of his parents and the behest of his sister. He was taking great pride in the lengths he was going to in order to find some direction in his life, and Chase couldn't deny finding it an attractive quality in a man that she was sleeping with.

Most counselors would have frowned at the idea of someone sleeping with their own sibling, at the very least...but Dr. Walters responded to that news so casually that it would have struck anyone as being more than a little odd.

"I can't even begin to tell you how happy it made me when he said yes to going to the dance with me," Chase admitted. "Like...the sex was great ; don't get me wrong...but just hearing him say that, and then that kiss...I don't know if I've ever felt anything like it!"

Though it wasn't unusual for someone to share the details of their sex life with a social worker, especially if there was a good reason to do so, it was at least slightly odd for Chase to do so while said social worker was standing behind her and pounding into her small, slender body with a rapid, eager gait in his thrusts.

True as that was, Chase didn't think anything of it: sex with her counselor had become such a casual delight that she thought it to be a perfectly normal part of the therapeutic process.

"I just wish he'd been able to make it this afternoon so we could have shared the good news together, as a group," Dr. Walters replied. "I feel like that kind of thing would really help to cement the connection that the two of you have built over the last month or two."

"Maybe...m-maybe you're right," Chase conceded. "But if I'm being honest, I'm kinda glad that he'd finally putting sincere effort into something in his life. It's made him even sexier...and to be honest, it's been getting harder and harder to find places and times to fuck his brains out, now that mom and dad are back from their trip."

The counselor cocked a brow at the mention of her parents getting in the way. "Well, we can't have them putting a wedge in the relationship that you two have forged, can we? If you need me to have a word with them on your behalf, I could certainly pencil them in for an appointment, as well."

If he was able to get away with saying such a thing to Chase, there was no limit to the levels of depravity that Dr. Walters could sink to, but for her part, the young canine didn't think his offer to be anything other than a kind gesture.

As far as she'd fallen under the spell of the good doctor, there was no telling what he'd convince Chase to do next; the only certainty was the fact that he'd be doing just what her brother had done to her the week before, with a full load of seed being poured into her sex before their session was up.

"I dunno...I mean, I know t-they helped us hook up with you and all," Chase answered, speaking as casually as ever. "I just don't know how much they're...counseling people, y'know? Like, I'm glad it worked for us, and I'm sure they're glad, too, but..._nnn..._I'm n-not sure if they'll be up to this kind of...t-thing..."

Building, overwhelming pleasure was making it hard for Chase to speak with such a nonchalant tone, but the casual nature of the romp didn't allow her to speak to the counselor in the same way she spoke to her brother, at least, in the throes of passion.

She was mentally conditioned to see the counselor as an external male figure that she could trust, rather than the object of her desires...but he was more than capable, and as far as she was concerned, more than welcome to try and fill in for Mack, when the opportunity arose.

There were plenty of sessions before that one, wherein Mack and Dr. Walters would take turns fucking Chase in the middle of the floor. It was almost routine for one of them to pick a side, and then, in the middle of the act, Chase would receive an intimate sample of her own juices, coating whichever cock was lucky enough to dip into her womanhood first.

As twisted as it might have all been, the idea of being double penetrated by her brother and her counselor wasn't an odd one: it hardly even qualified as a fantasy, anymore, just as the good doctor intended.

To her, it was just a necessary, but entirely _enjoyable_part of the healing process.

"Perhaps I should be a bit more sincere with...w-what I mean," the doctor suggested. "If your parents are going to g-get in the way of this, then I'm going to schedule a session with them...it's really for the best that they don't get in the way, Chase."

That was one of the first times she could recall hearing something akin to firmness in the tone of the Labrador, but she didn't mind it: if anything, it made her more pliable to his touch, even when it faded for a moment.

His paw shifted to the tape player, skipping the soothing background music that was part of their usual sessions. To make sure that she wasn't going to spill the beans and make it that much more difficult to get the parents on board with what he was doing, he needed another level of control, and in the next track, the act shifted from the rather easy, casual pace that it once held.

Dr. Walters didn't seem capable of a single thing that required force when Chase first met him, but the shifted tone of the background music changed all of that: first, by pulling all of the thoughts from her mind and leaving her with a blank, thoughtless expression...and second, by leaving her entire body pliable to the whims of the black lab behind her.

Her head drifted further over the couch cushion as Dr. Walters took his place behind her again, but this time, as the tapered head of his cock passed through her parted, gently-used folds, there was a dramatic shift to the pace.

There was nothing casual about that first thrust, as the doctor rekindled his connection with the truth of his canine nature. Domineering, hammering thrusts immediately followed as he found his stride and spread his legs a little bit wider, creating the perfect base for him to rail into the smaller, slender bitch...but there were no sounds of pleasure or protest from the other end.

With her mind blank and her body willing, Chase stayed draped over the couch, slumped with the last bliss that she felt when she was properly conscious.

"Not a word of this...t-to your parents," the counselor demanded, his voice ragged and his breath burning hot against the back of her thoughtless skull. "Not a single f-fucking word...not if you want your brother and I to keep l-loading this tight little pussy f-full of pups..."

There was what appeared to be a brief, subtle nod from the eager canine beneath, but as hard as the doctor was pounding into her body, it easily could have been the force from his hips, slapping against her slim, but entirely satisfying backside.

In the heat of the moment, it looked like nothing more than two canines satisfying their natural urges in a pose that was befitting of such an act, but only one of them would feel properly fulfilled when Dr. Walters allowed the track to change again.

He had a lot of work to do if he was going to keep his honeypot flowing, but he'd deal with the frustration of that in his own way, as his cock was bathed again and again in the young, slick juices of a tight, teenaged cunt.

"Be sure to pass those instructions onto y-your brother," Dr. Walters ordered her. "When the time is right, y-you two won't have to hide a thing from your parents anymore..."

His thrusts became shaky and uneven as the pleasure of sliding about within her body became too much for him to handle, but he never slowed: he kept the pace and raked his claws against the carpet, while arms wrapped around the petite frame of the smaller canine and held her steady, making sure that her body took the full brunt of every thrust he had left.

Were she able to properly appreciate what had happened to her, she would have been sore in the most delightful way, as an orgasm took control of her body...but she didn't realize just how rapidly her inner muscles were fluttering, or just how much physical delight was centering about the nub of her sensitive clit.

The greedy doctor ignored all of that, preferring to focus on the sheer ecstasy of pumping his first full, virile load of cum into her womb and trapping it in place with the wide, unique bulge of his knot.

"Don't f-forget what I told you, Chase...I've never told you anything quite a-as important as this," he emphasized, panting desperately into her ear and trembling against her smaller, weaker form as his orgasm flooded her tender, well-fucked passage. "Everything you and y-your brother have built will be for nothing if you...d-don't listen to your doctor's orders!"

The last thrust left in his body was enough to shift the edge of the couch, but it wasn't the scraaaape of the wooden foot against the floor that finally snapped Chase into having such a startled reaction on her face.

It was the gravity of that message, and the changing of the track in the background that allowed his final words to sink into her ears, as though warm, thick slime was pouring over the top of her head and soaking her all the way down to her toes.

She didn't have to confirm that she'd taken his orders seriously: a simple turn of her head, prompted by a finger and a thumb pinching her chin, revealed all that Dr. Walters needed to see.

**

The magic of prom night wasn't lost on Mack, despite the fact that it was his second time around. After having such a disastrous time of it the first time, however, and wanting to make sure that his little sister had the time of her life, he went above and beyond the call of duty for her.

The limousine, the flowers, and tux and the dress were all on his dime, rather than their parents; those two still didn't suspect a thing, and they were nearly in tears with joy to see Mack had come around to such an extent, caring for his sister so much that he'd be willing to take her to the prom and keep a close eye on her.

Everyone else was keeping a close eye on them throughout the night, as their bodies came a little too close as they danced.

The other students might have been able to look the other way at that...but there was no coincidence about the tight, repeated press of their lips upon one another each time a slower song came on, until people in the corners of the dance hall were making comments about the siblings going about their lives the 'Alabama Way.'

As much fun as they were having with her small group of friends, Mack and Chase weren't long for the dance: with around an hour left in the itinerary for their evening, they snuck back into the limo, and the entire ride back to the house, paws were roaming and giggles were seeping through the window that divided the front of the car from the back.

It wasn't until their bodies were settled in the old treehouse in the backyard, and Chase was on her back, looking up at her brother as he penetrated her that the fruition of the night was complete, but she wasn't going to be granted total privacy just yet.

"Cassie...? What's up?"

There was no one looking in the windows of the shoddy, old treehouse...but even as her brother pumped into her eager, soaking womanhood and worked up a greater sweat than he ever did on the dancefloor, Chase was such a good friend that she picked up, making absolutely sure that her friend made it home safe from the dance.

"Listen, Chase...I'm not...I mean...I didn't see anything, but there were all kinds of people at the dance who said you were making out...w-with your brother."

"Really?"

"Yeah. Like...they said you were grinding on him and sucking his tongue...and like...right in the middle of the dance floor, too. They're just making shit up about you guys, right?"

Giggling and seeing the narrowed, grinning expression of her brother above, Chase wrapped her legs around his lower back and pulled him that much further into her vaginal passage, eager to feel just how excited he'd become by the mere act of dancing with her.

"Totally are...p-people are weird," Chase suggested, even as her voice became raspy with the struggle of containing her arousal. "Mack was just k-keeping an eye out for me; that's all. He's in bed right now, snoring up a s-storm..."

"Yeah," Cassie answered, chuckling. "I feel like I can hear him from here, honestly. He's such a good brother!"

"He really is," Chase winked up at him, and for her efforts, she was granted such a full, lengthy kiss that she almost dropped her phone in the process of meeting it. "Mnn..._mmm..._w-well, y-yeah...just rumors, Cassie. Don't worry about it."

"You okay, Chase? You sound flustered."

"Just thinking about this cute guy I like," she claimed, but her voice was rapid and nervous: she knew she was going to cum if Mack kept thrusting, but he was only picking up the pace, from there. "I'll tell you about him later."

She didn't know if her first, impassioned cry was cut off when she ended the call, but as Chase cried out her brother's name...she didn't care who knew what she'd done.