Well, Keira needs food! But Debbie needs something else first...

"Oh, I get it!" The right head spoke first, hefting Keira's massive upper breasts and squeezing the fat nipples until they engorged and poked from the cerberus' fur. "That reminded you of yesterday and how fucking awesome my boobs feel!"

The middle head boggled - this was one of the rare times the three heads weren't of one mind, and both outer heads had literally been born lewd and uninhibited. These kind of shenanigans were to expected. What wasn't was how receptive Debbie was, if the excited throbbing of her swollen shaft and the deepening of her blush was anything to go by.

"I mean, we couldn't stop thinking about your fucking awesome cock, Debs," the left head continued, one of Keira's hands slipping between her legs to dip one claw between her pussy lips. "How about you let us play with yours and we let you play with ours, and then we order takeout?"

Debbie gaped, mirroring the expression of Keira's middle head on a much more human face, staring up at the towering cerberus. The outer heads grinned proudly, and the middle head decided to throw the old rules of society to the wind and join them. She had been wondering how Debbie's massive shaft would feel inside her; oversized as it was on the smaller woman, it looked to be a perfect fit for Keira.

"I, uh, I, what?" Blushing crimson and with a massive, straining erection, it was obvious that not much blood remained to keep Debbie's brain at full capacity.

"I'm saying we fuck, then we order pizza and cuddle," Keira's middle head explained, licking her lips seductively and enjoying how the sight made Debbie swallow hard, even though the motion had happened on the wolf-like muzzle of the cerberus. "Don't leave us hanging, girl, give the bitch a boner!"

"I... I... for real? I've... never, not even before, and now I have this... thing, and..."

"And nothing." Bending down, Keira gently cupped Debbie's face in her right even as she stirred up her pussy with the middle finger of her left hand and stroked her tumescent dog dick with its thumb. "You're beautiful, and your cock is damn sexy. The three of us want you to pound us with it, Debbie, but you need to want it, too. We won't **** you."

"Oh... oh god, you..." Tears filled Debbie's eyes as she looked up at Keira's middle head, her left pressing against the back of the cerberus' right hand cupping her face. "You have no idea how it feels to hear you say that. I had this thing for over a week, and... and you're the first to say it's sexy instead of looking at me like a freak, and I have these urges, this need to, to push it into something and--"

"Well, these urges are about to be fulfilled, Debs," the right head smiled as Keira gently trailed a claw slick with her juices along Debbie's trembling schlong, making her lover shudder in delight. "Yours and ours."

Turning around and towards the table, the cerberus leaned forwards and brought one claw between her powerful legs, spreading herself open as she presented her wet and ready twat to Debbie, left and middle head turning to look back at Keira's soon-to-be lover, her right claw lifting one of her top-most breasts to the muzzle of her right head so the cerberus could suckle on her stiff nipple.

"Now, what are you waiting for?" The middle and left heads spoke in unison as Keira bounced in place, making her enormous, black-pelted asscheeks jiggled and clap together. "Fuck this horny hound with that fantastic cock!"

Face almost as crimson as her swollen glans, Debbie gaped at the cerberus, eyes wandering from Keira's fat ass and waiting pussy to her smiling heads and back - but only for a few seconds. Then the desperately horny futa scrambled to undress, clothes flying into a corner, and she wasted no time to dive between Keira's legs and push almost her entire face between the cerberus' folds, lapping and licking and kissing.

"Oh god, Debbie!" Gasping, Keira threw all three heads back and pressed her twitching muff against Debbie's face, hands going to town on the cerberus' massive upper breasts. "Fuck! Your tongue...! Aww, god! Yes!"

The cerberus felt her pointy shaft begin to leak pre, seconds after Debbie had begun worshipping her snatch, even though the smaller woman was very much a novice. Her eagerness made more than up for it, though, and Keira felt droplets of femcum ooze into the fur of her thighs, matting the shiny black pelt as the powerful muscles under the skin quivered helplessly.

"Awwfhugh..." Panting, three tongues lolling from three slack maws, Keira felt her tail wag rapidly, one hand wandering down her front, playing over the multitude of stiff nipples poking through the fur, only to finally grasp her gargantuan, knotty cock and stroke the pulsing shaft slowly, almost sensually. "Feeelshghoood~..."

Three heads and not a single properly working braincell among them, Keira stood there, leaning over Debbie's living room table as she palmed her breasts and pumped her throbbing rod, Debbie almost lost in her folds, figuratively and literally. Slurping and sucking noises filled the room as Debbie pressed her face into Keira's snatch, eagerly lapping up her juices, pulling the cerberus' engorged clit between her lips and letting her tongue play over it until Keira was a mewling mess, knees almost giving out.

"Ghhaawhoooh~..." Keira was near-delirious with arousal when Debbie finally let up on her pussy, her heads speaking in turn as the cerberus' fat nuts roiled and churned with cum, the smaller woman's face glistening with Keira's other juices. "Fhugghmeee~..."

"I... I... yes!"

Any more encouragement or words would have been wasted. Debbie stood up straight, and only Keira's knock-kneed stance allowed her to reach the cerberus' hot and ready pussy with her oversized schlong. Although, of course, it wasn't oversized for Keira. It was the perfect fit, and the muscular dog morph's folds eagerly sucked Debbie deep inside, allowing her to bottom out in one smooth stroke, the smaller woman's smooth balls slapping against Keira's black-furred ones and sending a squirt of pre under Debbie's table.

"F-Fuck... so--oooh..." Bucking her hips with barely any control, Debbie sunk her hands into the fur at Keira's hips and the soft flesh beneath, pulling herself against the cerberus' ass with loud slaps. "S-So hot in-inside youuu~!"

Keira was howling with pleasure - literally. Debbie's massive member was filling her to the brim, stretching her deliciously in just the right way, hitting all the right spots with each and every stroke. When her lover pulled out, the aching emptiness built up an almost painful anticipation in the cerberus, only for the powerful thrust filling her up again to knock the breath out of Keira. The sensations had fried all parts of her brain above pure, animalistic rutting, mating, breeding, all three heads panting and yipping and yowling as the cerberus slammed back into Debbie, almost knocking her down with the difference in their weight.

But Debbie held onto Keira's hips, giving the lust-crazed cerberus a proper pounding, straining rod sliding over every bump and fold inside of Keira until it knocked against her cervix. The cerberus' own, much more animalistic rod bounced and throbbed, Keira's hands having gone back to her breasts, shaft leaking a steady stream of pre that splattered onto the tiled floor, volume increasing at the same rate as Keira's arousal - that is to say, rapidly.

And their noise, too, rose with their lust. It was as if Keira's three heads were trying to outdo each other, and Debbie herself was much more vocal than her previously so shy demeanor would have led Keira to expect. If the cerberus had been in any state to expect anything, of course. But both of them were beyond caring, their frenzied fucking all that mattered, Debbie hammering away into Keira's snatch and Keira meeting each and every one of Debbie's thrusts with bone-jarring gusto.

Holding on to Debbie's table, Keira let her six tits swing free, feeling her pussy clamp down powerfully on Debbie's veiny rod while the cerberus' even girthier member strained, knot swollen almost to bursting. The dog morph was living so fully in the lustful moment that her climax hit her completely unprepared, nuts and abdominals clenching with all their might as rope after rope of Keira's swimmers exploded against the chairs under Debbie's table, staining them white and dripping to the floor.

"Awwghaawwd~, yoo're milkinnngh meee~!" As the cerberus strength waned and she began to slide to the ground, muzzles down and ass up, Debbie held on, fighting against incredible forces trying to suck the cum directly from her balls. "T-twitching... so muh-much~..."

But Debbie had weathered the storm of Keira's climax, and the new position gave her an even better angle to pound away at the cerberus' snatch, and every thrust smacking into Keira's backside ground her enormous, black-furred tits into the floor, making all of her heads groan lustfully, eyes rolled up under half-closed lids and tongues lolling out of dopily smiling muzzles as Keira's ears twitched and her tail wagged.

Babbling lustfully, Debbie hammered her shaft into the cerberus, forcing dribs and drabs of cum out of the dog morph's swollen rod every time she bottomed out. Even though the smaller woman's heavy nuts were churning and twitching and her thrusts were jerky and uneven, Debbie wouldn't let up, couldn't let up, her distended rod finally used for it's very purpose, and so she pumped and bucked and thrust as her words became ever more slurred until they were barely recognizable as such, and finally...

"Aaaghaahuuuuh~!" It was not the most dignified of climactic screams, but it was primal and coming from the depths of Debbie's soul - and the enormous batch of baby batter coming from the depths of her nuts was eagerly sucked up by Keira's womb.

Every last drop, until Debbie had emptied everything she had to give into the cerberus and fell forwards onto the soft fur of Keira's muscular back, muscles burning after their fuck frenzy, but a deep, all-encompassing satisfaction overshadowed everything else. Keira's right head turned weakly and smiled at the smaller woman resting on her back.

"Told ya, that dick is perfect..."