Once Pound had been set down for his nap, Rainbow Dash trotted her way downstairs while mentally high-hoofing herself. "I can't wait to see the look on Applejack's face when she finds out I cured Pound's feather flu all on my own!" She thought to herself. "And the best part is, since he's in potty training I don't have to worry about that icky diaper changing stuff. Don't know how Pinkie and The Cakes put up with it, or anypony else for that matter."
After checking on her pet tortoise, Tank (who was snoozing happily), Rainbow Dash curled up on her living room couch. Since she didn't have a Daring Do book to read, and she'd read the latest edition of Cloudsdale Times already, it wasn't look before she shut her eyes and drifted off to sleep. A quick power nap wouldn't hurt anything, she'd be up and about before Pound.
Unfortunately, by falling asleep, Rainbow had no idea she was unintentionally giving Pound a free pass to cause mischief. And that she was going to be for a rude awakening.
Pound's eyes fluttered awake, and with a yawn he rolled out of Rainbow Dash's bed. "Tat was a good sweep," The pegasus toddler said to himself, rubbing his eyes. "Wonder where Wainbow Dash is? Is not wike a gwown-up to just weave me without someone to watch over me. At weast big sistew Pinkie Pie weaves Gummy in chawge."
Pound looked all around, as his eyes adjusted to the dark. There was no sign of the cyan colored mare that had set him down for his little nap, and he certainly wasn't going to just lay back down and go back to sleep. His feather flu wasn't completely gone, but it wasn't as much of a problem now as it had been just a short time earlier.
"Wainbow Dash?" Pound called out, there was no reply. He called again. "Wainbow Dash?" But still he heard nothing. Pound shrugged. "She must've gone somewhere and arranged for somepony to check up on me," He thought. "So what am I gonna do while I have the house all to myself?"
That thought lingered in Pound's mind, as he trotted along the floor of Rainbow's house and out of her bedroom. He scanned a couple of rooms, hoping to find somepony waiting for him or for something to do, but he found nothing. Well, nothing that is except for one room in which he saw a strange creature with a big shell snoozing away without content. If Pound recalled correctly, said creature was called a tortoise and from what he'd heard they were rather slow. "Maybe that tortoise is supposed to be watching over me?" Pound thought, as he approached the creature's resting place. It was then that the tortoise let out a huge yawn, blinked, and slowly rose up. It seemed to stare at Pound as if it were asking "What are you doing here?".
Surprised at the creature's sudden awakening, Pound bolted and fled from the room! "Not going in thewe again," He said to himself. "Tat towtoise ow whatever it was neawy scawed the pee-pee out of me. Speaking of pee-pee-"
Pound tried to recall what Rainbow Dash had done with his potty, the urge to go wasn't very strong, yet. But he knew he would have to go soon, and the last thing he wanted was to go into his new pull-up. He'd made a bet with his sister earlier that he could stay dry for an entire day, now that he had been placed in pull-ups, and if he won he'd get to have Smarty Pants all to himself for a while.
Searching for his potty, Pound pushed open the door to Rainbow Dash's bathroom. He was more than a little disappointed to find out that the rumors were false, buildings made of clouds didn't have cloud based plumbing fixtures. The sink, the bathtub, and the toilet were all made of plain old porcelain, what a let down!
But Pound saw that his potty wasn't in the bathroom, and he really, REALLY had to go now! He knew going in his pull-up was out of the question, but he also knew he wasn't big enough to use the toilet without a grown-up's assistance, and there was still no sign of Rainbow Dash or anypony else! It was then that a third option presented itself to Pound! As he looked out the bathroom window, he saw a bunch of unoccupied and unused white clouds just floating there! They would be perfect!
Carefully buzzing his tiny wings, Pound flew out of the bathroom window after removing his pull-up. He was relieved that the clouds were a short distance from Rainbow Dash's house, the toddler doubted he had the strength to make such a long flight to and from any location. "Gotta go, gotta go!" Pound said to himself, as he touched down on the closest cloud while doing a little potty dance. Immediately, he planted his little butt on the cloud and let nature take its course. Doing his business on a cloud felt 'different' for lack of a better term, at least in comparison to using a diaper or a potty, but Pound didn't seem to mind it too much.
Once his business was concluded, Pound flew over to the next cloud and used it to wipe himself clean up. When the cloud got too dirty to be used, he just flew to the next one and repeated the process. It took about three or four whole clouds before Pound was convinced he'd cleaned himself up enough. But now that left the matter of what he was going to do with the used clouds, he couldn't just leave them and have somepony get mad. But it wasn't like he could just make the clouds disappear at will, and tossing them into a trash can or sending them off somewhere would be too incovnient. So then, how would he get rid of them?
Looking across to the bathroom window, Pound got an idea. "I'll just flush them down the toilet," He thought to himself. "After all, the clouds are basically water anyway, and they can always make more from the water. Nopony will ever know it was me!" And with a cheeky grin, the little pegasus set to work on rounding up all of the clouds he had used.
Rounding up the used clouds proved to be rather difficult, but somehow Pound managed to haul them back through the bathroom window and position them above the toilet. With the lid already open, Pound flew up and one by one all of the clouds he'd done his business on were stuffed into the bowl. "Cwouds go down the hooooole!" He said, fluttering up to press the handle down. He watched, as the clouds spun around and disappeared down the drain. Figuring he shouldn't stop there, Pound went to go get more clouds, and he continued to stuff as many into the toilet as he could, before flushing them all away!
But as the last of the clouds he could find got flushed, Pound noticed something was happening with the toilet. Specifically, when the final cloud was to go down the drain, it didn't. It came right back up, alongside the water! And nothing Pound did seemed to be able to stop the rising water. "Uh-oh!" He said to himself.
"Pound Cake, what's going in there?!" Rainbow Dash called from the other side of the door, as the rising water spilled out of the toilet bowl and onto the bathroom floor.