The morning sky was lightly brushed with clouds, the sun was beaming down upon fields of ripening crops, and upon the open windowsill sat two tiny chirping thrushes, playfully trading songs. It was as peaceful a morning as anyone could have asked for. 

“AAAAHHH~!” 

Until Mora gave a yawn that count rouse the dead and start avalanches. The poor little thrushes soared off in a panic, and the sound reverberated far out into the fields and woodland surrounding the farm estate, where likely even more wildlife (and a colourful and curious reptile woman) would be roused from their slumber by the noise, like it or not. 

Mora re-fastened her robe sleepily just as the kettle finally finished boiling. She slumped, zombified, over to the counter to finally concoct the magic elixir that would revitalise her for the day ahead. Otherwise known by mere mortals as ‘Coffee’. Though this was no mere picker-upper, this was Prime Deluxe Triple Filtered Espresso. In other words, the ‘Good Stuff’. And as the head honcho on the farm, Mora felt it was only fitting that she help herself, even if there were only a few spoonfuls left. 

Having said that, she knew very well that she wasn’t the only one that had had a long and nearly sleepless night. She cracked a smile thinking about the joyous and consistent sounds of lovemaking that had reverberated from the bedroom next to hers that she’d heard very clearly through the thin wall between. The loud and passionate noise gave even the ruckus that she and Minos made, which they were so (in)famous for, some solid competition. The culprits were obvious, and she couldn’t have been more proud of the happy, recently engaged couple. Not to mention, it was a little arousing to think about her step-brother giving it to her best friend something fierce.

It took the feeling of blistering hot water on her hand to bring her back to the room.

“GAH! FUCK!” 

She jumped her hand away from the overfilled and spilling mug, now in a hurry to grab a fistful of kitchen towels while still nursing the slight burn stinging her fingers. After cleaning up the small mess and wiping her mug dry, she sighed and finally took her steamy cup of coffee over to the breakfast counter, hopping up onto a stall and sliding over a tablet, to catch up on the morning’s news, play a little game, and maybe watch a little softcore porn.
Okay, mostly just watch porn. 

After five minutes of literally nothing BUT porn, Mora was a third of the way into her coffee and finally starting to feel alive again. This really was the good stuff, she absently thought, just before she heard the telltale creak of another set of footsteps coming down the stairs. Judging by the lack of haste behind those steps but the weighty volume of them, and the very fact that it was still far earlier in the day than most of her housemates and employees would choose to wake, she had a strong suspicion as to their identity. 

Then, when they turned into the kitchen slowly and drowsily, Mora was pleased to find her guess was right. 

“O-Oh… Morning, Mora.” Randal groaned, grinning with baggy eyes as he flopped into the kitchen, wearing slippers and his loose fitting navy blue boxer shorts that sank down to near his knees. 

“G’Mornin, Pup!” She croaked, as enthusiastically as she could in her state of only slight liveliness. She raised her mug and leant forwards, resting her gigantic bust upon the marble kitchen top in so doing, to give her adoptive big brother a warm greeting. In her spare hand she curled a lock of her own chestnut hair around her fingers, and set the tablet face up on the counter, knowing there was nothing to hide: Randal of all people knew how unflappable Mora’s sex drive was. Plus, it was always fun giving the tufty furred collie a bit of a tease. 

“You, uh, been up long?” Randal quietly asked, awkwardly glancing at the ground as if averting his gaze from the tablet screen… or perhaps her cavernous cleavage.

“Nah, just got down. Coffee?” Mora asked, unflapped at his bashful reaction. “Ambar recommended it. Little pricey, but worth the extra dough. And if anyone asks where it all went, I gave you permission. I figure the both of us need a cup of this after last night, no?” She laughed jovially, while flicking her gaze up and down his body. He may not have been as prime a slice of beefcake as Minos, but even Mora had to admit, Randal was one handsome guy.

“Ohh, sure, thanks!” Randal awkwardly accepted, pulling up a kitchen stool opposite Mora’s on the counter after grabbing a mug. Either he was too tired to have noticed her little teasing mention of the mischief he’d gotten up to with his fiancé the previous night, or he was just too shy to acknowledge it.

“So…” she continued, while loading up Randal’s mug with a few hefty spoonfuls of powdered espresso. “Did you get any sleep at all last night, or did that lovely bunny of yours keep you too busy?” 
“Well, uhh…” Randal’s ear twitched, and now that he was close enough, Mora could see that even after his sex filled night that had left the smell of lovemaking all over him like a cloud of erotic aroma, he was still innocent enough that his face was intensely blushing through his fur. 

“I’m just joking, big bro.” Mora said, patting his shoulder before taking another swig of coffee.
“I-I know!” He barked. “I-It’s okay, as a matter of fact, I’m uh, kinda glad you brought it up…” 
“Hmm?” 
“H-How do I get good at sex?” 
She almost spluttered a mouthful of that precious caffeinated ambrosia over the counter. 
“What?!” She coughed, half laughing and half genuinely confused, while catching her breath and steadying her composure. 
“Sorry! Just, I mean… Taffy’s just so beautiful, and I love her so much, I just wanna make her happy, but even after everything we did last night… I mean it was just SO good, but even as I was passing out she was saying my name and making me wonder if she needed more than what I could give!” 
Randal spoke hurriedly, babbling now that the floodgates had opened on his true thoughts, while stirring the coffee into his cup way more than necessary out of some variety of nervous habit, having not even taken a sip yet. 
“What do I do, sis?” He finally asked as Mora continued to pant and settle herself. 
“Sheesh, hell of a bombshell there…” she finally sighed, placing a hand around his shoulder after getting up and walking to his side. “I’m flattered, honestly, but… I don’t know what to tell you, big bro. It’s not something you can just pick up with a flick of the wrist, and I doubt you wanna hear me getting too, uhh, detailed about the specifics of what girls like…” 
Randal muttered and nodded. 
“Taffy loves you, hon. I can’t tell you how happy I am for you two lovebirds, with the engagement and all. But she’s not a sex fiend like me, and from everything I heard through the bedroom walls last night, it sounds like you’re doing a good job already of making her happy.” She beamed, flicking her fingers against one of Randal’s floppy ears. “Besides, it’s not like she’d let me, heh… teach you ‘practically’.”
“Actually!” Randal blurted out again, turning to look Mora straight in the eyes. “This was… kinda her idea.” 
Now it was Mora’s turn to blush. 
“C-Come again?” 
“Well like… I asked her about all of this before I came downstairs, and she said she’s happy for you to do it, as long as it's a one time thing, just for the sake of teaching me.” 
Mora stood there, speechless - a rare state for the usually brash bovine. 
“And, she said it was the least you could do after years of keeping us up with all your noise-making!” 
That, she supposed, was fair. 
Randal took her by both hands. 
“Please, Mora. I want to be the best husband I can be for Taffy. A-And, there’s no woman I’d rather have as my teacher than my beautiful big sister.” 

Mora’s heart was throbbing, and she felt genuinely charmed by his words. Curse his naive selflessness, it made even such a corny confession like that into a genuinely sweet statement. Not to mention hearing it from a handsome topless stud helped turn her on to the idea. He even seemed to be eyeing her up a little hungrily himself. 
It would be a lie to say she’d never seen Randal that way - in a way she’d had it in the back of her mind ever since playing House as young ones - but now that he was a grown man, seeking the best for his bride-to-be, she couldn’t deny how exciting it was to think about trying him out for herself. And he wasn’t blind either, or deaf. He knew how loud, how energetic, and how ‘physically gifted’ she was. It warmed her heart to think she’d charmed her sexy big brother so much. 
“Follow me.” She purred, meeting his gaze while taking his hands in hers. “If Taffy’s given you permission, I’ll show you how to make that bunny squirm alright.” 
Randal smiled widely, but had a sudden gasp of realisation. 
“But, Minos, is he…?” 
“It’ll be fine. He’s got a few kinks of his own. You might be surprised what he lets me get away with.” She giggled, having now completely adopted a pair of sultry bedroom eyes. “Oh, but finish your cup first. Like I said, shit ain’t cheap.” 
“Y-Yes Ma’am!” 

—- 

There were a lot of downsides to having an expansive estate of one’s own, including the amount of sheer cleaning alone that needed doing, but at the very least it allowed a multitude of effective hiding places where Mora could have taken Randal. After all, both of their own bedrooms were taken by their resting beaus (even if Taffy knew all too well herself, apparently, that this little tryst was taking place). 
Having decided on the barn just a stone’s throw from the farm house, they hurriedly scurried there and shut the doors behind them before both began to strip down. Mora doing so quite noticeably with more confidence than Randal did. 
“A-Are you sure you’re okay with this?” Randal repeated his concern, even while playing with the elastic hem of his boxers. 
“Mmhmm.” Mora playfully sounded. “As long as you are, Rannie.” She teased him, once she’d dropped her gown to the floor and taken the few steps to press her body to his. 
“Wooooah…!” Randal gawped. 
“What? S’nothing you ain’t seen before.” 
“Y-Yeah, but we’ve never…” Randal’s words petered out into nervous stuttering, his shoulders tense and eyes averted away from Mora’s massive breasts, resting plump and full right before his eyes, close enough to reach out and touch. 
“Shhhh.” Mora slowly took him by the cheek and guided his eyes back to hers. “Relax, big bro. It’s just me, you’re not gonna scare me off or anything.” 
“Yeah, but that’s what I mean…” he gulped, though he still reached out to brush a hand along her thigh. Seemed as though his body was betraying his true desires. “You’re family to me, Mora…” 
Mora grinned, and even bit her lip as she enjoyed the touch of this shy, cute collie gingerly beginning to feel his way up her hips. “Well, you could say that makes it a bit hotter, don’t you think?” 
Before he could answer, she grasped Randal by the wrist and raised his hand up further, until it was sinking into her breast outright. 
“Ohhhh, sis…!” 
Mora pushed her chest forward and kissed his cheek. 
“I’m gonna say that’s a yes?” 

Something must’ve twigged in Randal’s mind, for in lieu of any further vocal cue, he bent forwards with remarkable speed, and was momentarily latching his lips and tongue around Mora’s nipple. 
“AHHNN!” Mora gasped joyously. “Ooh, naughty boy! Heh, wasn’t I supposed to be doing the teaching here?” 
“Sowwie!” Randal mumbled, without even letting go of his mouthful; just looking wide eyed and sheepish up at Mora, his hand pawing at the underside of her heavy breast, looking like a kid having been caught with his hand in the cookie jar. 
“Don’t be.” She warmly replied, hand resting on the back of his neck as he shut his eyes again. 
“Now, I’m glad you know how to play with those, but remember that every girl is different, and Taffy’s boobs might, nnnh, not be quite as sensitive as mine…” she said, doing her best to start actually teaching the collie, while his tongue lapped and teeth began chewing at her nipple. He was suckling eagerly, eyes shut and tail wagging, giving her flesh a firm squeeze quite frequently, but without being too forceful as to be greedy, or make her sore. He was even breathing in a low and lustful growl past his lips that reverberated over her areola and added to the heat pumping through her chest and making her feel wet between the legs. 
“Oohhh, that said, you’re… good at that…” 
Randal finally pulled back, albeit with his own gaze half lidded, and his lips only popping off of her nipple after pulling it away strongly, causing Mora to inhale with a sharp gasp of pleasure as her breast jiggled back into place, now glistening with Ran’s saliva. 
“Hehehe, Taffy actually really likes when I do that… I’m not so worried about the, uhh, foreplay side of things…” 
“Ohhh, so you just wanna get down to business, do you? What a typical guy!” Mora said, sarcastically jostling him. 
“O-Ohh, I’m sorry! I didn’t mean to, uhmmm…” 
Mora gave a deep laugh, almost as chesty as she herself was. 
“Relax, puppy. I know you’re better than that.” She sweetly coaxed him back to stand upright, though only then did she notice how generously his boxers were tented. “But, maybe it is about time you lost those…!” 
“Ohh, uh, okay!” He said, before starting to grab at the hem of his underwear.
“Actually…” Mora said, loudly enough to cut him off before acting. “How about you let me do that.” She purred, with a raunchy smile. 
“Ohh… y-yes, please…” Randal agreed with curious fascination. 
Mora smiled wider as he panted a little in her hands, even wagging his tail behind him. It was really sweet seeing this side of her handsome gentlemanly big brother. 

Swiftly, Mora leant forwards and peeled his pants down, and sure enough, Randal’s member was quick to flick upright, freely standing to attention in the cool morning air and the dawn sunlight peeking in from between the barn doors. 
“Wow, very nice…” Mora cooed sincerely, taking his shaft within her fingers to feel the heft and warmth for herself.
“Ah…!” Randal breathed excitedly. 
“Heh, you sure are keen alright.” She said, gingerly running her digits down to the firm base, then down to his heavy balls. His panting grew sharper, and he shut his eyes with his long canine tongue lopping out the front of his mouth. 
“Mora, c-careful…!” He whimpered, clearly conflicted by his pleasure and his commitment to being a dutiful and ‘patient’ student. 
“Hmmm, alright then…” Mora replied, gently relinquishing her grasp around his member. Instead, she stood and hugged him close, with her mammoth breasts cushioning his chest in wonderfully soft fashion. “If you’re that excited, then let’s have you show me your moves, puppy.” 
Before he could ask her to elaborate, Mora had kissed him square on the mouth. He didn’t fight it in the least; in fact his eyes seemed to narrow with newfound focus in response, as though he was readying himself to show Mora what he was willing and able to do, for his dear wife to be. 

As their lips waved together and tongues began to play, Mora gave him no quarter, simply caressing his cheeks and the back of his neck. The heat between their naked bodies was building quickly, slaying the chilly sunrise air. Randal in turn slid his arms underneath her armpits and clutched Mora’s broad, strong, tanned back, hugging her close and tight. Mora remembered that Taffy had always said how warm, safe and reassuring Randal’s hugs were. It was easy to see why. 
But soon enough, he was smoothing his palms down south, to the small of her back and past it, and he didn’t stop there. He pulled back from the kiss, having impressively wrestled Mora’s tongue for dominance and won, ending it by tantalisingly chewing on the tip of her tongue just firmly enough to demonstrate his hunger. 
“Aahhhh, Rannie…” Mora moaned, quite surprised herself by how masculine and forward he was proving to be. But he didn’t reply in words; instead ‘Rannie’ just dipped his head down, beginning to swathe a course down her front as well. 
He licked down her neck and past her collarbone, his moist doggy tongue lapping generously and taking a quick pit stop at her nipple where he lashed and suckled for a moment more, then took to planting soft kisses over her navel. 
“Mora…” he growled loudly, in unison with his hands finally reaching and squeezing her freckled butt cheeks. 
Mora was quickly feeling overwhelmed by the battery of new emotions and feelings in relation to this bold, handsome canine brewing in her mind. This was, in almost every sense but biological, her big brother. Her family, as precious to her as his fiancé Taffy was, if not even more so. She’d taken the lead in this little tryst not just because of how shy she anticipated him being, but to essentially ‘trick’ herself into overcoming any sense of wrongness that came with banging her own brother. But to her surprise, she realised as Randal licked and nibbled his way closer to her groin, any sense of taboo she felt was doing nothing but stoking the fires of her own lust for him. She’d made a mental left turn on her view of Randal far faster than she’d thought. 

So, when he took two firm, hard fistfuls of her asscheeks in his hands and pressed his soft, wet, fuzzy canine muzzle against her soaked mound, the fact that her own brother was eating her out was nothing but fuel to the fire. 

“AAHHNN! OHH RANNIE!” 

She couldn’t believe it - this was exactly what she was going to guide him into doing, anyway. But she couldn’t even express that in verbal fashion, thanks to how fervently and hungrily Randal was lashing his tongue against her pussy, just between her labia, in long forceful laps up and down her slit. 
“Ahh! Oh yes! YES!” 
To further stress her delight and coax him onwards, Mora sank her hands into his head, through his hair and around his floppy ears, desperately keeping his muzzle shoved right against her pussy. Though he wasn’t being shy about digging in anyway - he was soon pressing his lips around her mound, smooching in an open mouthed kiss while his tongue went wild. He lapped up to her clit, pressing just under the hood and tickling the bud. He squirmed his tongue deeper inside, her clenched passage parting by force around his wet appendage. His fur nuzzled the sensitive skin just north of her pussy, and as if all of that wasn’t enough he was beginning to moan in a low consistent growl that caused small yet strong reverberations that she felt striking almost all of her ‘hot spots’ at once. 
It was deep, passionate, heartfelt, and it was too much for Mora to take. 
“UNNGHHH! Oh fuck! R-Rannie! Tha-aatsss… ohh gawd…!” She sang, her tail twitching and face quickly contorting into a wide eyed, salivating and silly grin of ecstasy. She’d not been eaten out this well since… well, she was feeling too good to reminisce. Even her strong farmer’s legs were quaking under the strain threatening to build her up and up and up until she was passing out from it all. 

But Randal was obsessed with showing Mora what he could do. ...Or perhaps he just really wanted to make her come. Whatever the reason, nothing shy of apocalypse seemed to be able to stop him as his tongue pushed deeper inside, flicking and rubbing right along the roof of her vaginal passage and giving her engorged clit a generous massaging, complete with low and lingering moans moistened by her ample juices. 
“AHH! AHHH! RANDAL! I’M…! Ohgodohgodohgodddd!!” 
He suddenly smoothed his left palm around, and while still molesting her ass in the right, rubbed his way up her thigh and pressed right down above her cunt. That, with a final nibble on her labia, set her off. 
“OHHHHH!! AHHH! OHFUUUUCKK! UNNGHH!!!” 
Mora screamed, clenching and thrashing and barely keeping her balance. Her clenching sex squirted furiously, feeding Randal’s appetite while he continued to slurp and lick generously at her folds. Not that she’d have seen it, but his eyes were wide open, and he seemed surprised by the very volume of her orgasmic output. But he seemed to like her flavour, given how he wagged his tail and rubbed his muzzle all around her mound, bathing and basking in it all. 

“Ahhh… o-ohh… wow…” Mora weakly breathed, peeling her hair back in one hand and tugging Randal’s face back in the other so that she could actually look at him. 
“Woah, so it’s not just Taffy that does that!” Randal chuckled, seeming no less energetic even after making his big sister see stars.
“Hunh?” 
“Yeah, uhh, Taffy does that a lot too, when I use my mouth. And, when we actually… y’know.” 
Mora had to take a second, not just to catch her breath, but realise what he meant. When she did, she too weakly laughed. 
“Well… of course, pup… that’s an orgasm, all girls do that… if you’re good enough, heh.” 
“Ohh… OHHH! That’s what it’s like for girls? I thought only guys get those!” 
“Hahaha, wow, hon…” Mora cooed, stroking Randal’s cute but wet face. “See? You’re better than you thought.” She met his eyes, looking down at him between her bare tits that heaved with each recovering breath she made. 
“R-Really?” 
“Ohh yeah. Taffy’s a fucking lucky girl.” 
Randal’s eyes narrowed, his expression curling into something between masculine lust and dutiful devotion. 
“We’re not done though, are we?’ He said, holding Mora’s gaze and nuzzling her thigh with a kiss or two. “I want to show you everything I can do, sis. For Taffy’s sake, I want to be as good as I can be.” 
Mora opened her mouth to tell him just how good he’d already been. But she paused, realising his sly little inference. This was clearly not just for Taffy, not any more. What a naughty big brother she had. 
“Bring it on, big bro.” She replied, taking his hand to help him up, then leading him to a nearby hay bale. “Show me what you do to make Taffy scream your name every night.” 

—- 

This time, Randal initiated the kiss himself, as soon as he’d laid Mora down on her back atop the hay. He splayed her thighs apart and pressed his naked body generously down against hers, drinking in the luscious volume of her chestnut hair as their lips danced and his tongue swirled around hers. 
Mora in turn, arched her back and shivered under his touch, pushing him down even closer against her as they made out with more and more aggressive passion by the second. 
Again his lips tickled their way down to her neck, but this time they went no further south than that, choosing instead to slowly but sharply sink his teeth in to suckle and chew on her supple skin with a rough love bite. 
“AAHH!” Mora gasped, sucking in air and rubbing upwards against him. Sure enough, it was then that she felt a very telling, warm, firm shaft rubbing against the dip of her pelvis. 
“Oohhh, Rannie…” she breathed, following her words with a giggle. “I’ve never seen you like this…” 
She guided his head up from her neck, and where she usually saw a sweet and selfless gentleman, she now saw the smouldering, desiring stare of an animal. 
“You ain’t seen nothing yet.” He growled, while guiding his member in one hand, letting the tip paint his way to her folds. 
She didn’t fight it in the least; far from it, her heart was pounding faster than she ever expected. 
“Do it.” She panted, grinning a wicked grin and wrapping her legs around his lower back to keep him firmly ‘pinned’. 
Randal just poked his tongue out of his mouth in cheeky fashion, knowing there was no way he was going anywhere, but inside her. 
Mora chewed her lip and ran her hands through his thick chest fur, wonderfully fluffy thanks in part to that famously effective shampoo that he and Taffy alone guarded from her and all the others like their prize possession. She had to admit, his fur felt amazing.
But before she could spend too long admiring his coat, Mora felt his cock grazing and nudging between her folds. 
“Ooooh…” She huffed, surprised and impressed that he’d ‘aimed’ himself so deftly. But then, ever since that first long and passionate night she couldn’t help but overhear, he and Taffy had been very ‘active’ indeed, so perhaps it was no wonder that he knew just what to do even with another woman. 
Before she could offer to guide him in, he had started pushing his cock inside her. 
“Nhhhh!” 
She shuddered, but quickly acclimated to the feeling. 
“Ohhh, Mora…!” 
Randal, meanwhile, needed a moment to adjust to the feeling of his little sister’s moist sex engulfing his cock. 
“Mnnnnnh, that good, baby?” Mora sighed, clasping his cheek. 
“Y-Yeah… nnngh…” 
“Hey, uhh… sorry if I’m not-” The rest of her words were muffled, seemingly out of embarrassment given how she glanced away sheepishly. 
“Hmmm?” Randal managed to mutter out while still twitching, deep inside her. 
“...not as… tight, as Taffy…” 
Randal seemed unable to fight back a little chuckle. But before Mora could voice any anger at being mocked, he had leant down and kissed her cheek. 
“Mora, you are absolutely gorgeous. And you feel so damn good.” 
His words poured in her ear like honey. Mora could feel the blood rushing to her cheeks. Dammit, when did her big bro become such a sly fox? 
“I love you, sis.” 
With that sweet and sexy growl, followed up by another hot french kiss, Randal began to move his hips. 
With a firm hold on the hay bale underneath in one hand for support, and the other helping himself to a thick palmful of her freckled, soft ass, Randal had more than enough purchase to go hard, and he took full advantage of the opportunity. 
“Haaaah! Aaahhh!” 
Mora was being louder than either of them expected. In her defence, Randal had done a stellar job of ‘warming her up’, but outside of even that she had to admit, he was quite physically gifted. His cock pushed deep inside her, rubbing along the way at all the right spots, guided by the practiced swing of his hips and the curve of his shaft until he was reaching deeper inside her than even Minos usually did. Granted, her bovine beau had a thicker member, but he was a million miles away in her mind at that moment. All that she focused on was scraping her fingers through the sea of fluffy fur along her canine lover’s back, panting in his ear to egg him on, and digging her thighs into his lower back to keep him locked in as close as could be. 
“Nnnghh, Mora… you, like that…?” He asked, seeming to genuinely want to know. 
Mora couldn’t help but playfully laugh, not quite convinced any more that he needed tutelage to begin with. 
“Nnhh, fuck yeah, don’t stop big bro…! Mnnnh, you sure, you didn’t just, w-wanna show off?” 
In lieu of a reply, Randal just sank his other hand into Mora’s ass too, and doubled his pace. 
“OHH RANNIE!” 
Now Mora knew what really made Taffy scream his name nightly. She tossed her head back, eyes shut tight, mouth agape and all four limbs tugging furiously at Rannie’s coat. 
“Mnnhhh, f-f-fuck!” 
Somehow even the sheepish way he swore under the relentless assault on his senses that came from being immersed in gloriously warm, thick bovine flesh was downright charming. He was burying his head into the crook of Mora’s neck, wildly nuzzling and licking, chewing and nibbling from her shoulder up to her floppy ear and everywhere in between. All while relentlessly driving his dick to the very base inside her, causing a wet, raunchy slapping sound whenever he hilted. 
“AHH! AHH! FUCK ME! YES!” 
Any semblance of taboo behind fucking her adoptive brother was a drop in the ocean now to Mora, who was just thrashing, grasping, clawing and squealing as her climax built closer and closer. And like the greatest orgasmic highs of her life so far always were, it was being forced upon her by this handsome studly puppy who showed no signs of slowing in how he pounded her pussy. 
“UNH! Sis! I’m gonna f-f-fill you up…!” 
So he was a bit of a naughty talker after all, in the most erotic moments. 
“YES! Gimme… fill me up, big brother! UNNGH!” 
Mora was all too glad to see and raise his words, and coax him on physically by squeezing his cute butt while lashing her tongue against his. 
“OHH, MORA!” 
Randal pounded faster still. 
“DO IT! CUM IN ME!” 
Mora screamed at the top of her lungs, clenching her thighs and keeping him balls deep, just where they both wanted to be. 
Moments later, he gave them what they both needed. 
“UNGHH!” 
“AHHH! YESSS! C-CUMMING!” 

With Mora’s head tossed back in ecstasy and Randal’s face scrunched and jaws clenched as the waves of pleasure washed over them both, he rutted one final time inside of his busty sister, right to his now-sopping-wet nuts. His cock throbbed generously inside her, washing her down from the very deepest point he could go, past where even her own boyfriend had ever reached. 
“AH! AAAH!” Mora continued to cry out her orgasmic bliss with nails scraping his back, toes curling tight and legs squeezing him close to truly wring his cock out for all the hot potent canine spunk it was worth. Which was a lot, given how soon enough his twitching balls were awash with the copious overflow gushing from her tight sex and dousing the hay beneath them. 
Her nipples scraped along his chest, rock hard and pointed into his pecs, the tingling sensation serving as the cherry on top of such an explosive creampie climax for the pair. 

After some time, the length of which neither one had nearly enough focus to determine, their bodies melted and collapsed together, all panting breaths and jellied limbs. 
“Oh… my… gawd…” Randal weakly whined. 
“No… kidding…” Mora whispered back, flicking her fingers against his cute floppy ear lobe. 
“So, umm…” he nervously muttered, despite still being mostly hard and drooling his seed inside her. “Was that… good? Honestly?” 
Mora looked at him, awestruck at how there could be any ambiguity in the matter by now, and giggled gently, followed by a soft peck to her studly puppy bro’s lips. 
“You’re gonna make one hell of a husband, pup.” 
Randal beamed, his tail wagging gladly behind him as he nuzzled Mora’s cheek. 
“Still…” she continued. “A little ‘further study’ as you go along, couldn’t hurt…” 
Randal took his turn to giggle, yet followed it up with a smoky growl. 
“Any time, ‘teach’.”