"Genie?" you ask the thin air around you.
Todd looks a bit confused over his shoulder at you, his huge, sexy German Shepherd body spread-legged while he holds himself bent-over by propping himself up on the bed. "Hunh?"
"Never mind," you say to Todd. "Genie? Care for a blow-job while I handle this naughty puppy's behind?"
Todd's cute German Shepherd features look confused until, kneeling on the bed in front of him, the genie materializes. This time, however, the big, muscle-bound hare is not wearing anything.
His big, rippling biceps flex softly as he knees in front of your playmate and his grin is wide as he looks you both over.
"Do you have any idea how long I've waited for someone to invite me into a three-way?" he asks, putting his paw, lightly, on Todd's shoulder.
Todd looks up at both of you and blinks, uncertain. "Bones? What's going on?"
You chuckle and slap his ass, fondly, feeling your huge doggie cock getting thick and hard for the third time in an hour. "I'll tell you later... Suffice to say, Gene, here, is a new playmate who wants to have some fun..."
Todd turns his canine head back and looks up at the big, hyper-muscular rabbit and -then- slides his eyes down to stare at the bunny's groin.
The Genie, as you expected, is as big as you ... possibly bigger.
His huge, soft cock fills his sheath and -soft- would reach about halfway down to his own knees! His balls, the size of small soccer balls, jiggle softly as he rocks from one knee to the other on the bed, stroking his penis and encouraging his pink tip to emerge towards Todd's muzzle.
"Don't worry," the Genie says to your fuck-friend, "I'll be gentle..."
With that, he slides his paw down Todd's cheek and encourages him to open his mouth.
You watch as Todd half-closes his eyes and slurps the rabbit's huge penis tip. He moans in delight, then, as if the mere taste of it was an orgasmic experience. You slide up on the bed, behind him, and caress his ass, as the German Shepherd opens his mouth more and starts licking and working the rabbit's thick cocktip with every inch of his tongue and muzzle.
"Gene" moans, slowly starting to rock his hips forward and back, pushing his swiftly fattening cock into your recently-transformed friend's mouth.
"Gods, this feels great," the Genie groans in a deep voice. "How's it on your end?"
You grin, starting to stroke yourself to a thicker and harder state. "I'll find out soon enough," you say, sliding your other hand over Todd's ass cheeks beneath his fluffy tail.
Soon, your full size, nearly a foot-and-a-half long, is throbbing just beneath your chin at a level with your chest, and you lower it, pressing your cocktip up against the Shepherd's tailhole.
Todd gasps at the feeling of something so large at his rear door, but a gentle caress on his cheek from the Genie and a playful spank on his rump from you, makes him ease up.
You feel the heat of his soft fur against your cocktip, as you pump some precum over his ass and lube him up. Grinning, you listen to his muffled groans as you start pushing forward, feeling his tight, muscular rump squeeze down and try to impede your progress.
The Genie trembles and starts pushing his own cock forward, throbbing into Todd's mouth deeper and deeper. "Oh, Bones, you've got the best taste in wishes," he says, panting.
You watch as Todd's tail rises higher, his tight ass giving way, inch-by-inch, as you push your giant penis inside his body.
Soon, with a >POP< you feel your massive tip slide inside and a muffled "yip" bubbles out from Todd's muzzle around his mouthful of rabbit-cock.
Now, slowly, you start to push in and out, pumping Todd's hot, canine ass with your giant cock, feeling your massive, coffee-can-sized balls bounce alternately against your thighs and the Shepherd's ass.
A sexual rhythm slowly establishes itself as you and the rabbit fuck Todd from both ends, moaning and half-closing your eyes.
The minutes tick by steadily, your own arousal mounting, when you start to feel something ... odd.
Todd's not quite as tight around your cock and, in fact, the bed's springs are creaking more loudly and the bed frame groans heavily as the three of you fuck harder and harder.
Opening your eyes you look down to see a huge, bushy tail in your face. Your paws grip Todd's ass as you see the amazing: Todd's gotten bigger!
Nearly twice his former size, the huge German Shepherd is rocking back and forth, hunched down to accommodate both the Genie's cock and your own shaft in his ass. You gasp, panting, watching as -with each of your thrusts into him- he grows a tiny bit bigger!
"Genie... What...?"
The rabbit smiles back, moaning and clearly nearing his own climax, and says, "Hey; part of you...your wish was that ... he'd be ... big...!"
You can't help but smile, thinking of how your idle word has resulted in such a fantastic sight! You groan, feeling your balls tighten, their thick contents readying to spray themselves into your fuck-buddy's ass. Gritting your teeth, you groan, managing -barely- to say, "Gods, that's great... Bi...bigger ... is ... better...!"
With that, you feel yourself no longer able to hold back!
You erupt inside Todd's ass, sending long, thick, ropey strands of your seed deep inside his canine form!
At the same time, "Gene" erupts into the big man's muzzle, his rabbit spooge pumping and churning from his body in equally long, syrupy blasts!
The two of you cum into Todd repeatedly, filling him up to the point where he puts a paw on his lower abdomen and moans at the tightness, there.
Spending yourself, you soon fall back, slowly -excruciatingly slowly- you pull your cock from your friend's ass, watching as some of your white cum seeps from between his cheeks. Likewise, the Genie pulls his cock out of Todd's mouth and moans in pleasure, falling back against the bed's pillows.
"Oh, Gods," he says, "It's been centuries...!"
Todd smacks his lips, slowly sitting back on his haunches, looking down at his giant body and still-raging hard-on ... rising all the way to the tip of his muzzle...
"'Centuries'?" he echoes, sounding confused. "My God, how huge am I?"
You smile, getting off the bed and looking at your giant friend, his head near the ceiling even though he's still kneeling on the bed. "I'd guess," you say gazing up at his face as he turns part-way to look down at you, "that you've got to be nearly 12' tall!"
You eye his penis with a grin and nod towards it. "And that, I'd say, has got to be at least five feet long!"
His paws go to his thick penis, gripping it meatily, as he feels how huge and heavy his sex has gotten.
"Bones," he asks, nervously, "what's going on...?"
"He'll explain soon," the Genie says, "but would you really want that before we both give you a king-sized blow-job?"