The sun was drawing lower as the yellow cab pulled up alongside his house. The door opened and a grey furred hand took hold of it as Boony pulled himself to his feet with a tired sigh, tipping the cabby before shutting the door with a satisfied slam and walking up the short path to his front door. He loosened his collar and fumbled a little with his keys to get the right one, when he noticed the small box standing on his front step.

He tilted his head, frowning curiously, before picking it up and examining the little note stuck to the top:

"Hi Boon. Figured you'd have had a hard day and I thought you might find my new energy drink will help invigorate you. Enjoy! 

Love Always, your cousin Fang~"

Boony was a little confused as he looked at the package. Well...it was nice of Fang to think of him, but he didn't normally do stuff like this.

With a shrug though, he put the box under his arm and unlocked his front door, heaving a deep sigh of relief as he stepped into the familiar smell - and light mess - of home. 

"What a day." He announced to his living room, setting down his work bag beside the door and quickly unbuttoning his shirt collar, before placing the odd package on his dining room table alongside the little note. Once his hands were free, he quickly began to undress; stripping down to his underpants and kicking off his clothes as he went, grabbing his black tank top and red boxers from his bed and pausing en route to the shower to lift the lid on the huge glass tank beside his bed, smiling down into the big red eyes of his golden python, Sunshine. 

"Hey there big girl, hope you weren't too lonely while I was gone," he said to her, Sunshine looking up at him with a subtle smile on her scaly lips and flicking her tongue happily as Boony petted her smooth head, "I'll let you out just now. Gonna take a shower first."

He closed the lid, preferring to keep an eye on Sunshine when she was let out. She could be a mischievous thing at times. Like that time during his New Year's house party...

The memory made him chuckle, as he kicked off his underpants and made his way through to the bathroom, turning on the shower full blast and tweaking the taps till the water was steaming. Then he stepped inside and shut the door, sighing with immense relief as he felt the hot water soaking into his dark grey fur, washing away the sweat of a long day's work and relaxing his entire body from head to toe. For a while he just stood under the water, his mind wandering as he slowly unwound and eventually began to rub himself down and wash his fur thoroughly with shampoo and conditioner.
 
A few minutes later, Boony stepped out of the bathroom feeling like a new wolf. He still felt a bit tired though and as he opened up Sunshine's tank for her to have a little roam about the house, he began thinking about food and remembered the energy drink Fang had sent him. Chilling on the couch for a little while seemed like a fine idea and a nice refreshing drink would be just the thing before supper.

As Sunshine slithered out of her tank and weaved her way across the carpet behind him with serpentine silence, Boony opened up the box and found it contained a six pack of artsy looking clear plastic 'cans' with bold red lettering.

"NICE." he read aloud, before shaking his head and cracking open the can with a pleasant hiss, "They must be running out of names for these things."

Plonking his butt on the couch, he stretched out his legs and rested his paws on the edge of the coffee table, before raising the can to his lips and taking a long draught of the crisp fizzy drink. It was kind of fruity, but also quite strong at the same time and it made his throat tingle a little with the amount of bubbles in it. It wasn't bad, in fact he found himself quickly taking another sip. It was just...different.

Sunshine was doing her usual exploratory circuit of the house, starting with the kitchen - her scales making the softest rustling as she glided over the tiles and poked her head up onto the counter, looking through into the lounge where Boony sat, the wolf casting a glance in her direction and smirking knowingly.

"Heh, I see you there big girl. Now don't you go getting any ideas about dipping into the fridge. I'll feed you later just...hang in the-..."

His brow creased as a funny tingling feeling began in his crotch. Turning around, he noticed that the handsome bulge of crotch looked and felt tighter than usual and his cock was inexplicably hardening. 

"What the...ah! What the fuck??"

He groaned in pain and jerked upright, taking his paws off the coffee table and. Squinting down at his throbbing package, his eyes opened wide as he watched his balls begin to swell out and his shaft reach full mast and then continue swelling just like it did when he was about to cock someone. His fingers quickly fumbled with the flap at the front of his boxers and he cursed as he struggled with the buttons, his cock growing by the moment and straining against the red fabric

"Sh-shit! D-damn thing...j-just come und-AH!"

The last button slipped through and his thick pink shaft burst out of its confinement and stood up hard and throbbing in his lap, continuing its inexorable growth as it approached his usual predatory size, but by now his balls were hanging down off the edge of the couch, stretching his elasticated boxers further and further as they filled out untill it looked like he'd just churned up a decent sized prey. They felt so heavy...and his boxers were squeezing in on them so tightly that it was almost unbearably painful and pleasurable at the same time. 

His entire body was tensed with the mixture of sensations and his hands grasped the towering girth of his throbbing cock as it finally seemed to be reaching the end of its growth spurt. His eyes were glazed over and half shut as he panted heavily, whimpering just a little as his bloated balls finally settled on the floor, swelling a little more till they completely filled the space between his legs, before stopping at last.  

As he lay back in the couch panting heavily, his cheeks flushed with arousal, he gave a soft growl as a his monstrous shaft suddenly swelled again, the veins standing out a little as it throbbed painfully as if unable to stretch any further. A thick bead of clear pre pooled at the tip, glistening and reflecting a curious red eye...
 
Sunshine had watched the scene with great interest. She had seen her owner's shaft grow out before, but this seemed different and she was curious to see his balls swelling out too even without a meal. By the time his growth had stopped, the golden brown snake had made her way from the kitchen counter across the dining room table and was watching with her head tilted to one side as her wolf sat panting heavily and grasping his engorged member as it pulsed in time with his heart beat, giving off a familiar rich scent that she picked up with her flickering tongue. Her eye was then drawn to the clear bead of sweet smelling fluid which beaded at the top of his shaft. 

The snake could tell by her owner's face that he wasn't likely to be in any position to stop her and so with a subtle smile, she slyly slithered her way across the carpet and bumped her nose curiously between the two round orbs in his straining boxers.
 
Boony gasped and his eyes darted down, widening as he saw Sunshine nuzzling her chin into the red fabric of his boxers.

"Su...Sunshine?? What are...h-hey!"

Her forked tongue flicked across the underside of the root of his shaft, making Boony's cheeks flush red as he moaned through gritted teeth and his shaft pulsed, sending another thick bead of pre up along his cumvein to join the first.

Sunshine smirked as she realized the effect she was having on her owner and suddenly she surged forward, wrapping her neck around the base of his aching rod and then coiling herself around and around the thick pulsing cock, dragging her body between his churning orbs as she encircled her new toy. 

Boony's jaw hung open and his every well-toned muscle tensed beneath his fur, his six-pack standing out like a washboard in his black tank top as he groaned in pain and pleasure. Sunshine's smooth scales felt heavenly, but the way she was coiling up his shaft, dragging her smooth body in a spiral around his cock was almost too much to handle! Never mind feeling her tail teasing his swollen balls as it slithered between them, before joining the rest of her long body in her snake-ish embrace. He reached out to try and grasp her, instinctively feeling compelled to stop this. But he couldn't find the strength or the will to do anything as the smiling snake nuzzled her scaly cheek into his smooth pink cock and once again flicked her slippery tongue along his cumvein, drawing still more thick pre from his aching shaft.

"S-Sunshine..." Boony panted, in between moans of pleasure, feeling her coils moving over his needy shaft. His green eyes watched her closely as she slithered her way along his engorged member and finally peeked over the top, curiously eyeing the musky precum glistening in his slit.

His cock must have been at least five feet long by now and thicker than his waist all along its length. Sunshine's coils embraced just over half of it, but he was so hard that not even the weight of her body could make his shaft go down.

Sunshine tilted her head, flicking her tongue slowly. She knew Boony was enjoying this, even as his hands weakly tried to grasp her body, her scales much to smooth for him to grip. The smell of his thick heady musk made her think of those swollen orbs between his legs and she eyed the glistening bead of pre in front of her for a moment, before dragging her forked tongue across his slit and licking up the sweet sticky fluid. Her cheeks flushed a little at the taste and she quickly sealed her lips around the entrance to his shaft and tightened her coils, making Boony groan at the teasing touch.

"S-Sunshine...come on, q-quit teasing me!" he panted, not knowing what she had in mind, but blushing at the way she was squeezing his cock and slurping down his pre. 
Her tongue began to wiggle down his urethra, as she tried to get more of the sweet liquid to flow. It was so roomy inside. She could probably...

She glanced down at Boony. His tongue hung out and he was panting heavily in arousal. As he their eyes met, a mischievous little smile spread slowly across her scaly lips and Boony noticed it too late.

Sunshine's blunt snout nuzzled against his cock slit and suddenly her head was prying open the entrance to his urethra, sinking easily into the snug fleshy tunnel, while her coils tightened their grip on his cock. Boony yelped and arched his back at the sudden penetration, but Sunshine was already pushing deeper, smiling to herself as she nuzzled her way into the soft, wet tunnel. Her tongue flickered against the walls, making Boony groan in pleasure as she tasted and smelled his ever stronger musk. A surge of thick pre rushed past her and bubbled up from his cock slit as it was stretched tightly around her long body, inch after inch of her cool scales sliping down into his dick as she made her way to his balls.

"S-Sunshi...o-oh g-go-o-d-d-s..." he panted, his eyes almost rolling back in his head.
 
His strong hands grasped the base of his shaft where it stretched the opening of his boxers, squeezing hard into the turgid flesh as his hips bucked reflexively at nothing. He couldn't see the lewd outline of Sunshine's body and head as she slithered down along his cum-vein, her smooth snout probing right down to the root of his cock where she found herself pressed up against a tight ring of muscle. Realizing what it was, she blushed softly and smiled to herself, hearing the muffled moans of her owner and feeling his shaft quiver in pleasure. She flicked her tongue across the tight ring a few times, and then wrapping her tail tightly around the head of his shaft, she pushed firmly against the seal in front of her and as Boony howled outside, the slippery snake popped her head through into the hot, humid chamber of his bloated sack and with a happy smirk, she quickly slithered through into his balls, her tail vanishing down his cock in a mere few seconds as she coiled herself up in her owner's cum filled sack. 

Boony slumped back into the couch. His cock throbbed heavily, drooling a constant stream of pre which dribbled down along his cum-vein. Squeezed into his red boxers, his heavy balls moved and rippled as Sunshine writhed about inside of them, exploring her new 'tank'.
 
The heat and humidity were perfect for the snake and the added cum bath felt wonderful on her scales. Coiling up in the thick pool, she blushed softly hearing Boony's muffled panting, his heart beat a dull thumping coming from the fleshy walls. The thick scent of his musk was almost making her feel a little light headed, but it didn't have nearly the same effect on the snake as it would on another anthro. Instead, as she lay there bathing in her owner's cum, she began to feel mischievous again. The sweet taste of his pre was still on her tongue and she couldn't help but wonder what his cum would taste like...

From outside, Boony couldn't tell what Sunshine was doing in his balls. However, as he peered down past his swollen cock at the outline of her coils, he found himself blushing and chuckling a little.

"Well...I hope you like it in there big girl," he leaned forward, resting a hand on his gently writhing balls where he thought her head might be and he smiled softly, "I gotta admit, you feel really good in there.~"

Leaning back again, he looked up at his drooling monster of a cock and gave a lopsided smirk. 

"Still dunno know how I'm gonna get this thing down though...Fang would probably be having a good laugh if she could see me right about now, the little shit."

He chuckled and rubbed over his pink shaft, murring at how good it felt. He could feel Sunshine moving around again and he bit his lower lip and gave a soft growl of pleasure. 

"Mph...seems like someone's enjoying themselves.~"
 
Boony grinned, watching his big girl slithering about inside his sack, murring as lewd wet gurgles and squelches started coming from his cum filled orbs.

"Heh, you always were a naughty girl. Plan on coming anytime soon so I can try and empty those bad boys and get some shut eye?"

Naturally Sunshine couldn't respond. She merely continued to write and slither about inside her owner's balls, till she found herself nuzzling into nothing but slimy flesh. 

The golden snake hiccupped, the muffled little squeak making Boony tilt his head curiously.

"Hmm? What are you..."

He stopped, staring at his swollen balls as he realized something was different about them.

With a contented sigh, and another cute hiccup, Sunshine coiled up in the warmth of Boony's sack, her belly filled with every last drop of his thick musky wolf cum. The warmth of his seed spread through her body and as she began to digest it, she felt something else...she felt his sack getting tighter around her. It wasn't uncomfortable, but his balls definitely seemed to be shrinking.

In fact, as Boony could see, that wasn't really the case. As Sunshine began to squirm again, remembering that it wasn't a good idea to stay in Boony's sack too long and deciding that it was time to come back out, she suddenly realized that she was growing. And growing fast!

"Sunshine? What the hell..." Boony began, before moaning as a much larger snake than he remembered began to push her way back up his shaft, squeezing through the entrance of his sack and slithering slowly along the tight pre soaked tunnel of his urethra. Sunshine wasn't worried, but she was a little confused as she felt her whole body tingling all over as the growth slowed down, just before her head poked up out of Boony's cock slit and she gave her owner her cute little smile, blushing softly as she dripped with a mixture of clear pre and ropes of sticky white spunk.
Boony was gobsmacked as he looked up into her friendly snout.

"Sunshine? What on earth happened to you in there?" he asked, relaxing a little as she seemed to be fine. 

He moaned deeply as she wound her neck around his shaft again, using the grip to drag the rest of her body up and out of his throbbing shaft. Slowly, she added coil after coil to her wet embrace of Boony's shaft...until finally her tail slipped free of his gaping slit, her head resting on his much smaller balls as she glanced up and blushed deeply, seeing how much she had grown from drinking her owner's cum - her thick golden coils now completely covering his pulsing shaft from root to head.

Boony gasped in amazement. Before a smile spread across his muzzle and he tossed his head back, laughing heartily. Sunshine looked up at him bashfully, before she too began to smile, slithering wetly across her wolf owner's chest and nuzzling her cheek against his snout, Boony smirking at his naughty snake and gently stroking her slimy neck.

"Silly snek.~" he chuckled softly, Sunshine flicking her tongue across his nose playfully in reply.

The pair of them both turned to look at Boony's cock, which still throbbed persistently in his lap, refusing to go down. Glancing at each other, Boony smirked at Sunshine's permanent little smile and as she began to wind her way back up his shaft, he simply sat back in his couch and licked his lips in anticipation.

"Something tells me I'm not gonna get to bed anytime soon." He remarked with a smirk, but Sunshine didn't even bother to glance back at him, before diving head first into his gaping slit and once more slithering down the hot slimy tunnel, her tail flicking as it vanished into his slit and her larger body filling his balls out further than ever as she curled up happily inside of them once again, a deep and contented sigh coming from Boony as he felt her squirming for him and flicking her tongue over the musky walls of his sack. 

A little while later, his cumvein bulged out as Sunshine began to work her way back up his cock, poking her head out of his slit with a fresh glazing of cum dripping from her scales. Slithering out a little, she curled her neck around the head of Boony's shaft and nuzzled affectionately into the warm pink flesh.

Blushing and panting happily from her latest re-emergence, Boony smiled at the golden serpent and cupped her soft scaly cheek, Sunshine glancing back at her owner happily. As he panted softly,

"Who's a good girl?~"

And Sunshine smiled.