was there anything better then a warm summer day with no school and your mom home so a certain evil incrate babysitter didn't have to come over? Timmy wasn't sure but one of the perks of being him (and those were few and in between) was that should something be lacking from making this his best lazy day ever, he could always just call upon his faeries and poof, get whatever he needed..well within limits.
Though he did have somewhat bad luck with his wishes at time, between his fairy god parents Wanda and Cosmo he always came out on top more or less, well more on Wanda then Cosmo though he loved them both.
Which was why as he came back to his room after making use of the restroom (there WERE somethings he preferred to do alone after all) he was worried and confused as Wanda was packing a suitcase.
"Uhhh what's going on?" Timmy asked, raising a eyebrow, Cosmo was sucking in the fish bowl though unlike the last time he'd at least gone into his goldfish form.
"Oh hey sport, I've gotten take off for a week..family emergency in fairy world with my sister and Big daddy." She said, turning and giving him a hug and a pat on the head as the luggage kept packing itself, and added "I'm sure you and Cosmo can get alone fine without me." 
She pulled back from the hug then mouthed to Timmy 'please keep a eye on Cosmo!' As Timmy smirked and nodded. He knew how lonely and weird the green haired fairy could get without his sweetie around. 
"Have fun and hope everything turns out alright!" Timmy said and then gave her a little kiss on the cheek. "Cosmo, don't you have something you wanna say to Wanda?" 
"PLEASE DO GO! I DON'T KNOW WHAT I'LL DO WITHOUT YOU!!" Cosmo blubbered, popping out of the fish bowl and hugging her legs.
"..I'll stay if you explain to big daddy it was your idea." Wanda said
"..on second thought family is important! go and do what you have to!" Cosmo yelped and hid under the bed.
God child and god mother shared a smirk, and then she was gone.

One big sob session later, and Timmy having to get Cosmo to poof him a new shirt since the fairy had coated his with tears and boogers,and the pair were making their way downstairs.
Timmy mom had already cleaned up after breakfast and had apparently gotten into one of her cleaning moods, since she was wearing a apron, rubber glove's and have a head band on. in the apron itself was different cleaning supplies and she had her self creation (well she said it was hers and hers idea only) of a stick with a broom at one end and a mop at the other.
"Oh no.." Timmy groaned softly and pausing on the stairway, Cosmo meanwhile had taken the form of a stick on Timmy's hat that ready 'little dude'
"There's my loyal squire! come Timmy! today many a dust bunny will know our wrath, tinkle stains will be forced from potty's and a honest attempt will be made on the attic!" She said, twirling the broom mop and striking a battle pose.
"..what if I said I had plans to go out today with Chester and AJ?" Timmy asked, the thought of ended up cleaning the bathroom (he always got the bathroom because his parents believed Vicky's claims he was the one always destroying it) was less then appealing to him.
"Depends, how do you fill about not getting your allowance for a month?" She countered. 
"..Rawr! to battle with the dust bunnies!" Timmy said, finding his warrior spirit as his mom smirked. 
"That's what I thought."

5 minutes later Timmy was in the bathroom, wearing his own set of pink rubber gloves and having a bucket of hot soapy water and a toothbrush to clean with, so he could get in everywhere. 
"This stinks!" Timmy whined as Cosmo popped off his hat.
The fairy sniffed the room and then held his nose. "your telling me! you need to start opening a window after your done Timmy!" the fairy said.
"..Not what I meant..but..Yeah." Timmy admitted. "Prune jelly is not my friend. Anyways, I more meant having to clean the stupid bathroom all day!" 
"Well not much you can do about it, unless you wanna just wish it clean." Cosmo said.
"Yeah but then I'd have to spent all day in here to explain HOW i got it done. I don't wanna be in the bath by the toilet all day!" Timmy said then his eyes lit up. "I know! Cosmo, I wish I didn't have to deal with the bathroom all day long AND just get to eat and be spoiled!" 
"Oh, good wish!" Cosmo said and raised his wand. 
there was a proof and then..

Timmy was confused, he was out of the bathroom alright, but he was in the kitchen. Looking around he found himself in what looked like his old highchair, but was much bigger and he was still wearing his trademark shirt and a quick reach up confirmed his hat was still on.wiggling his hips however gave a tell tale crinkle and feeling that he was oddly used to by this point.
'you know, if they had told me when I got my faeries that I would be spending a third of my time in or around diapers, i might of said no.' he thought with a resigned looked on his face.
looking at the clock the day had apparently reset for him, and was back down to 8:30 from the 9:40 he'd been at. 
"So how did my big boy sleep this morning?" His mom asked, coming into view with a LARGE bowl of something that smelled bad, and looked even worse. 
"Like a lamb, uh, can we talk about this?" Timmy asked, not for one second believe that his mom could under stand him, he just wasn't THAT lucky.
"Ah boo boo baba to you too!" She coo'ed and tickled his chin.Looking around the room, Timmy couldn't spot Cosmo which was super bad because he needed the fairy asap, before he ended up in a poopie diaper.
His mom scooped up a large amount of the grey but also purplish goo that was in the mouth and started to move the spoon back and forth.
"Here comes the airplane! here comes the airplane!" She coo'ed getting it closer and closer to Timmy's mouth.
"Yeah that's one plane thats not lan-" Timmy went to say but of course with his mouth open the awful mush was in there and somehow tasted even worse then smelled or looked.
His eyes screwed up and he found himself swallowing it just to get the taste off of his taste buds!
"Good boy! I knew my Timmy would like his new prune and high bran oatmeal!" his mom gushed.
'..uh-oh.' Timmy thought, knowing what one of those could do to his bowels. working in stereo... 
"COSMOOOOO!" he wailed, mouth going wide open and getting him anther spoonful of his 'nummies'

Cosmo meanwhile was playing video games upstairs in Timmy room, listing to music and feeling proud of himself. he knew he didn't have the best of track records but this time he was sure he had nailed everything right!
Timmy wanted to be spoiled right? well who was more spoiled then babies!?
Timmy didn't wanna be by the bathroom at all, well duh, diapers took care of that!
Timmy hated being turned into a baby..so duh: make Timmy just a big kid who never grew up!
Of course that last one meant everyone would just hear baby babble coming from him but Cosmo had learnt from when Timmy had wished himself into a baby and made it so Timmy and him would be able to understand each other. 
"I bet if I leave Timmy like this for the whole week, he'll be so happy he'll be crying with joy and Wanda will be sooo proud of me!" he beamed to himself. 

Timmy was crying alright, but it wasn't tears of joy. He'd been forced fed the whole bowl and had the baby food mush around his mouth and on his cheeks from trying to turn away. 
His mom hadn't stop till he took whatever was offered so he'd eaten every last spoonful and had the horrible taste in his mouth to prove it, his tongue hanging out and filling uncomfortably full.
He was farting lots and whimpering as each blast came out, it was becoming clear what was brewing in his tummy tum and he didn't wanna poop himself.
Sadly his mom looked at him squirming, the tears and heard the whining and came to her own conclusion about what was wrong her silly big baby. 
"Oh dear, are you all backed up and want more?" She asked, coming over and wrinkling her nose at the cloud of gas semi clinging around him but giving his forehead a smooch. "Don't you worry little man! we'll get that poopie out of you and into your diapie wipies if I have to go though all 10 jars of your num num's!" She promised and turned away to go and mix up anther bowl.
"W-what!? No! Mommy no!" Timmy whined and pleaded, shifting around and bouncing around lots, not helping things.
"Hmmm?" his mom said, able to understand mommy. "Awww, are you thanking mommy? So cute! your welcomed!"
"..I'm SO screwed." Timmy whined. 

taking a break from the game, Cosmo decided to see how Timmy was doing, it had been about half a hour and he was shocked Tommy hadn't been brought back to the nursery yet. 
It was only natural the boys room had been retrofitted to look like nursery a big baby would need, and while he still had the fishes in the room they were in a fish tank installed into the wall, out of Timmy's reach and with baby proof glass.
he's been using a air bubble and magic to play games and listen to magic but now poofed himself downstairs, disguised as a big green big and whistled as he saw his handy work. 
Timmy's tummy while having a bit of baby fat before was HUGE, and he was burping and farting up almost a visible cloud of gas giving Cosmo a excuse to change into a fly and come close as he was being fed what looked like his 4th jar of baby food.
"Wow Timmy, you didn't tell me you were THIS hungry!" Cosmo said. "Still, you must love it if you keep chowing down!" 

Hearing Cosmo's voice in his ear as Timmy finished off the last of the jar, he whipped his head around, looking like he was saying no, though he was so focused on trying to spot Cosmo and try and talk to him that he had missed what his mother was asking.
"Why do you think little, had enough? Heh..I guess not! I really shouldn't give you anther jar, your diapie is gonna be a nightmare to change at this rate even without adding more fuel to the fire but your the boss." she giggled, getting up and going to open the next jar.
"C-Cosmo you gotta help me! I'm so f-full and I gotta poop but-" Timmy was whimpering and whining, but before he could finish explaining himself out to the little green fly, Cosmo just smiled.
"Oh! you need help going! no problem! I can handle that!" Cosmo said and held up his little wand.
Before Timmy could even start to yell no, the wand flashed and the damage was done.
any and all bowel control was lose and as Timmy's back down opened up, he would almost seem to get taller. hot mush flowed out like a mudslide and Timmy's eyes crossed as his diaper rapidly, filled, pushing him painfully up against the table of the highchair and making him cry out "MOMMY!"
Turning around his mother set the jar down and rushed over, freeing the table from the chair and the restraints as Timmy's diaper kept ballooning out of control, Cosmo had made it so that they were leak proof so they could just grow and grow, figuring Timmy wouldn't want a leaky diaper.
held up to his mothers chest, and her rubbing his back and letting him cry and get it all out (she was convinced he was just upset at how much he was going, it was scaring him) Timmy felt the diaper drooping down, heading for the back of his kneecaps. 
"Oh wow, you really had to go huh? But hey, since your all good and happy, I'm gonna take off for a bit, your kinda super smelly. don't worry though! I'll be back before the week is up!" Cosmo said and then poofed away.
"A..A week!?! I'm in for a week of this?" Timmy asked, eyes going wide and then with a final series of sputtering farts, he finished up and bawled harder then before, then exhausted conked out in his mothers arms..his last thought was he should of sided with the pixies when he had a chance.

the (Smelly) end.