The Greninja looked down at his massive belly,bloated from gorging himself on hundreds of insects,fit to burst,at its massive size-....

When suddenly the actually slim Greninja was rudely awoken by a Tauros noisily trampling around,snapping him out of his daydream,he angrily stood up,and stormed off to his cave.

The Tauros,rather confused as to why the Greninja suddenly stormed off,followed him.

Once he returned to his cave,which once was inhabited by Humans,filled with random object,among them,cages,a tap and hose,bunks,and some other objects that the Greninja didn't know the names of,he sat down,when suddenly,he had an idea,a wide grin spreading across his face,he reached over to the hose,turning the tap on ever so slightly,the Greninja inserted the hose into his mouth,and started drinking the water that now flowed out of it.
Within a minute,the Greninja's normally slim belly,was now bulging outwards slightly,however,unbeknowest to him,the Tauros was watching him,confused.

The Greninja,unsatistied with the small bulge the water was causing,turned the tap up further,noticably increasing the rate that his belly inflated from the water,he moaned,his cock now peaking out of its slit,his belly starting to round out,the Greninja started to stroke his hardening shaft,so lost in arousal at what he was doing.

The Tauros was now curious as to what was happening,why was the frog growing?

The Greninja moaned,never before had he felt so wonderfully full,but even as the feeling of fullness was replaced with the feeling of being overstuffed,the Greninja kept drinking,it wanted to be huge!,He needed to feast,make himself fatter,so he got up,and headed for the forest outside his cave,carrying a large sack over his shoulder.

It was then,when the Greninja noticed the Tauros watching him,he grinned,and gestured for it to follow him.
After a short walk in the forest,the Greninja returned to his cave,the sack now filled with insects of many different kinds.

The Greninja reached into the sack,and pulled a Metapod out of it,opening his maw wide,he stuffed the large,cocoon like insect into his mouth,swallowing it whole,causing his throat to bulge out heavily,his gut bloating out a bit from the insect finding its new home in his stomach.

The Greninja picked up the hose again,and placing it back into his mouth,he then reached into the sack again,this time,pulling out the largest insect he caught,a Volcarona,the large,moth like insect  twice the size of the Greninja's belly,the Greninja drooled at the thought of engulfing something bigger than himself,stretching his mouth as wide as he could,he slid the moth's head into his maw.
He moaned,the water from the hose still gushing into his belly,inflating him larger,and larger,and the feeling of stuffing the huge moth like insect into his maw,he pushed it further,and further down his gullet,his neck bulging to almost the same size as his belly,half way down the moth went,then three quarters,and then it was gone,the Greninja now four times as fat as he was before,his belly groaning and creaking from being so overfilled.

The Greninja opened the sack,and looked into it,at the assortment of insects still in it,he lashed his tongue at them,devouring them one by one,adding more bulk to his swelling stomach.
The sack didn't last long,and soon,the Greninja had eaten all the insects in it,he groaned,still wanting to feast,he needed more!
Remembering that the Tauros was still watching him,the Greninja rolling back onto his back as to give the bull a better view of his growing gut,the hose still pumping water into him,not as effectively inflating him as before,but still slowly causing his belly to grow.his belly now as wide as he was tall.
The Greninja was still not satisfied with its size,it wanted to be bigger,bigger than that Tauros even!

The Greninja's belly creaking and groaning from the pressure of all the water inside of it,he still did not stop,with the hose still in his mouth,bloating him bigger and bigger,he was still not as large as the Tauros now,and then an idea dawned in his mind,he stretched his maw open as wide as he could,and engulfed the bull-Pokemon's head,then its front legs,his neck bulging from the large pokemon entering its throat,even as the Greninja swallowed the Tauros,water still gushed into his belly,bloating him out even bigger,straining his already tight hide even moreso.
Further and further the Greninja engulfed the larger Pokemon,its chest,then its belly,his gut bulging outwards from the large pokemon entering his stomach,then the bull Pokemon's back legs,and finally,its tail dissappeared into the gullet of the Greninja,the Greninja moaned,so turned on by his newfound bulk,but he had to have more,he wanted to be bigger,fatter.
The Greninja pulled the hose out of his mouth,another idea popping into his head,he hauled his gurgling,groaning gut up,heavily slowed down by it now,and lumbered out of his cave,searching for what he wanted.
It didn't take long,the Greninja found exactly what he was looking for,a Serperior slithering through the grass,he lashed out with his tongue,wrapping it around the snake-like Pokemon,pulling it close to himself,he grins at the now nervous looking pokemon.

He took his prey back to his cave,his cock now out of its slit and stiff,his arousal at the situation extremely obvious,holding the Serperior by its neck,he grabbed the hose,and placed it in the snake's mouth,and turned it on.

The Serperior's slim,scaled body quickly felt the effects of the hose,its midsection slowly expanding,while the Greninja watched,slowly stroking its painfully hard shaft,the Greninja remembering how he ate all those insect type pokemon earlier,and wondered if the snake would do the same,so,placing the Serperior in a cage that the previous,human occupants of the cave left behind,and grabbing a large sack,he left the cave once again,only to return a few moments later,with the sack now full of insects,and small pokemon.

The Greninja opened the cage again,and removed the Serperior from it,grinning once again,the Greninja removed the hose from the snakes mouth,the Serperior's midsection now the size of a beachball,from the gallons of water now inside it,still soft,and definantly no-where near full,looking lower,the Greninja noticed the Serperior's dual cocks now erect,apparently his new friend was aroused by the idea of getting bigger too,the Greninja smiled at the thought.

The heavily bloated frog then reached into the sack,and removed a Eevee from it,then held it infront of the snake's mouth,the Serperior looking at the Greninja,then to the sack,then back at the Eevee,drooling.

The Serperior stretched foward,engulfing the Eevee quickly,swallowing the fox pokemon whole,a small bulge in its throat forming from it.

The Greninja then reached into the sack again,pulling out several Eevee's this time,holding them all by their tails above the Serperior's maw,the serpent lifted itself up,stretching its mouth around the bundle of foxes,its maw slick with drool,allowing the bunch of small Pokemon to slide down its throat,causing it to bulge quite heavily,once the bulge reached its midsection,the Serperior's bloated belly grew much larger,now not only limited to its midsection,its groaning gut now spreading the bulk throughout the rest of its body.

The greed being displayed by the Serperior turned the Greninja on to no end,he had to make his new friend bigger,he had to feed this insatiable greed,the Greninja grinned,he held the bag open so that nothing could get out,but his newfound friend could slide its head into the sack,which it did.

The Greninja watched as his friend's head slid further into the sack occassionally,followed by its throat bulging from another Pokemon engulfed by the greedy Serperior,its already bloated gut stretching even larger.
As the Serperior greedily feasted on the trapped pokemon,the extremely aroused Greninja turned its attention to the snake's erect cocks,reaching down,it teased the tips of the cocks,eliciting a moan from the expanding serpent.
Emptier and emptier the sack became,while the snake grew bigger and bigger,its belly now so distended that the snake could no longer move,it was too heavy,at last,it had devoured all the captured pokemon,its head sliding out of the sack,the Serperior looked at the Greninja,still drooling,still ravenously hungry,wanted to be even larger.

The Greninja grinned at its friend,picking up the hose,and holding it out to the snake-like pokemon,the Serperior lashed fowards,latching its mouth around the hose,greedily sucking down the water,the Greninja reached over to the tap,turning it up to full,the Serperior moaning at the sudden increase of waterflow.

The snake,now fatter than the Greninja,kept greedily drinking from the hose,failing to notice the lust filled Greninja moving around to its tail,and stretching his maw wide open.

The Greninja slid the much larger snake's tail into his maw,his throat muscles slowly dragging the snake down into his bloated belly while the Greninja moved fowards,trying to gulp his friend down faster,not even a quarter of the snakes girth,not even a tenth of its length had entered the frogs mouth,but the Greninja's mouth now had to stretch to accomidate this huge insertion.

The Serperior only now noticed the fact that its slowly being engulfed by its bloated friend,and it moans,it wants to help its greedy frog-friend become bigger,the snake starts to gulp harder from the hose,wanting to make itself even bigger for the Greninja,it grins,sliding the hose further down its gullet,trapping the hose in its stomach.

The Greninja,now starting to have the Serperior's tail enter its bloated gut,moans,sliding itself further up the still growing snake,both their bellies expanding,groaning in protest,straining from the pressure.

Shortly after,the Greninja has now swallowed a quarter of the Serperior's length,the snake's tail being coiled up inside the massively bloated frog,who is sliding further up the snake,its mouth stretched wide,the frog picks up speed,engulfing half of the snakes length,its mouth passing over the still hard dual cocks of his friend,now leaking with pre,lubricating the Greninja's throat,accelerating the process even more,until only his friends head remains out of his maw,which the Greninja gulps down.

He moans,his gargantuan belly so bloated,so huge,he then realized that the hose was still in his friends mouth,that the snake is still gorging on water in his belly,his massively overfilled gut creaks and groans,straining to hold together,the Greninja lets out a loud moan,when suddenly...

BANG!

The massive,overstuffed frog exploded,shreds of blue and green skin,and thousands of gallons of water scatter throughout the cave,and in the very centre of the mess,the Greninja and his Serperior friend sat,unharmed,back to their normal sizes,they look at eachother,and then locked lips in a passionate kiss,their friendship suddenly becoming a lot more interesting...

The End.