Rainbow Dash was sitting in the living room playing with her Spitfire doll, Fluttershy was out taking care of some animals and she left her and her sister Lightning Dust at home, Rainbow was playing quietly until Lightning crawled up to her and sat next to Dash.
"Hey Wainbow." Lightning said.
Rainbow looked at Dust, "What is it Wightning?" Rainbow asked.
"I saw something vewy intewesting upstairs do you wanna check it out with me?" Lightning said, Rainbow thought about it and shrugged.
"Otay I guess, better than sitting hewe all day." she replied.
What Rainbow saw wasn't at all what she expected, "Umm Wightning, why did you bring me to the bathroom just to look at the potty." Rainbow asked Dust next to her, she had brought Rainbow up to the bathroom and told her to look at the toilet although it could be a sign that Lightning misses using the actual toilet instead of her diaper, like one time she tried to learn how to potty train early but only succeeded in getting stuck in the bowl.
Lightning shook her head, "No I wanted to show you this." she said then went over to the side of the toilet and motioned for dash to come over, Dash walked over to Lightning then she told her to look inside the bowl Rainbow raised a brow questionaly but did what Lightning told her and looked at the water in the bowl, Lightning then fluttered a few inches of the ground and pulled the toilet handle.
Rainbow watched as the water in the bowl started to swirl around and disappeared down into the drain Rainbow didn't know why but she couldn't stop smiling then she giggled and fell over onto her back, "Ha, ha why am I giggling?" she asked.
Lightning came up to her and smiled, "I know wight, the last time Mommy pulled me out of there I don't know why but I couldn't stop giggling." she replied.
Rainbow stopped giggling and looked at Lightning, "So what was the point in showing me?" Rainbow asked.
Lightning smirked, "I'm going to throw something in it and watch it go down!" she proclaimed.
Rainbow still didn't understand, "But what does this have to do with me!?" Rainbow said getting irritated.
"I want you to go first."
"What!?"
"Oh calm down its not like were going to throw a bomb down in their." Lightning said.
"But why me?" Rainbow asked, This isn't the first time Dusty asked her to do something for her since becoming sisters and all those times they both got in trouble for it although half of the blame did belong to her for other mishaps that were caused by her that she made Lightning do in return, "I'm not getting in twouble because of you Dusty!"
"Oh come on, have I ever steered you wrong." Lightning retorted with a sly smile.
Rainbow shook her head, "No I'm not doing it and there's nothing you can do about it." she said flatly then turned around and started to crawl away about to leave.
"What awe you chicken!?" Lightning called, Rainbow stopped in her tracks then Dust smirked while living with Rainbow she learned that she couldn't refuse anypony once she's called chicken.
Rainbow turned around and looked at Lightning, "I'm not a scoot- I mean chicken." she retorted.
Lightning's smirk grew, "Prove it."
Rainbow came back and sat in front of her, "What am I fwushing down the toiwet?" she asked.
"Wet's stawt with something simpwe." the green foal said then going over to the roll of toilet paper on the wall she took a piece and hoofed it to Rainbow.
Rainbow was surprised she thought Lightning would make her do something crazy, "Weally only toiwet paper?"
"Oh don't worry I have more things I want to see go down the drain but for now wet's start with something small," she explained then Lightning went back over next to the bowl ready to go, "Now wet's do this ting!" she yelled.
Rainbow then came up to the toilet and dropped the piece of paper in then Lightning again pulled the handle and they both watched as the piece of paper went down the drain, Dash and Dusty couldn't control the giggles that quickly came out of them.
"See I towd you this would be fun." Lightning giggled.
"Awright you where wight for once." Rainbow also giggled then she thought of something, "But one piece of toiwet paper at a time is kinda bowing isn't it?" she asked.
Lightning smirked, "I was hoping you would say that," she smirked then she went over to the roll on the wall and jumped on top of it, "I load you fwush."
Rainbow smiled and got next to the toilet handle ready to go, Lightning started running on top of the roll making toilet paper fly right into the bowl which then was flushed down by Rainbow and they watched as all that paper go, they kept doing this until all the paper on the roll was gone lost forever.
Lightning got off the now empty roll on the wall and sighed, "Well, all great things come to an end." she said sadly.
Rainbow drooped her head she also had a lot of fun but then thought of something, "Maybe we don't." Rainbow retorted then crawled over to the bath tube and grabbed a rubber ducky that was sitting on the side and presented it to Lightning.
Lightning looked at the bath toy then at Rainbow and smirked, "I knew you would have fun with this." she said then taking the toy she threw it into the toilet and pulled the handle, they both watched as the rubber ducky went down the bowl with one last long squeak both foals fell down laughing at the ducks dismay Lightning looked at Rainbow.
"So what should we fwush next partner?" Lightning asked her partner in crime.
Rainbow thought about it for a moment, "Hmm I could think of a few tings, do you got anything you would wike to fwush?" she asked, Lightning nodded then Rainbow smiled,"Otay then let's go!"
Both foals started collecting and flushing things around the house rubber toys, paper, paint that made the water change color also soda, a rat for some reason wearing a tuxedo they kept throwing things in the toilet and flushing it down without clogging it to their surprise until they finally ran out of stuff to flush.
The two foals sat down on the bathroom floor thinking what to flush next Rainbow looked at Lightning, "Do you got anything?" she asked.
Lightning thought about it, "Hmm, oh I know!" she yelled then flew out the bathroom then quickly came back with her hooves behind her back Rainbow got up and smiled.
"What do you got!?" she asked excitedly.
Lightning puled a hoof from behind her back and presented a firecracker, Rainbow raised a brow then looked at Lightning, "Were did you get that?" she asked.
"Angel has a stash somewhere for when he feels wike playing a pwank on Spike," she replied then went back to the subject at hoof, "with this we can have a lot more fun."
Rainbow kept her brow, "What do you mean?" she asked.
"With this we can light it up and see what would happen." Lightning said smiling sinisterly at the idea.
Rainbow thought about it for a moment it would be dangerous to throw a live firecracker in the toilet but then again it took all the stuff they threw into it earlier so maybe it would be alright but then their was another problem, "How awe we gonna light it we cant use matches?" Rainbow retorted.
Then Lightning pulled out her other hoof revealing a magnifying class, "don't have to use a match," she said then going over to a spot where the sun was shinning through the window and put the magnifying class in position with the firecracker in front of it, "Do you wemembew what Daring Do did to set her dynamite off to bwow up a bunch of wild cats, she used a magnifying class to set it ablaze." she said remembering one of the Daring Do stories Fluttershy had read to her and Rainbow ever since the first story they read together she had grown to love the series as much as Rainbow did.
Rainbow smiled and got closer to watch her sister at work, after a while nothing happened but then the firecracker started to smoke then came to life with a sparking blaze then moving quickly both foals ran to the toilet and threw the explosive in and pulled the toilet handle and watched the water begin to swirl until.
"Rainbow?" said a voice from behind, both foal looked behind them to see there Mommy Fluttershy, "What are you two doing in here and why are you looking in the toilet for?" she asked.
Rainbow and Lightning looked at each other then at Fluttershy, "Nothing." they said in unison.
Fluttershy shook her head, "Never mind, I need the bathroom for a minute so you two shoo." she said then picking them up she gently dropped them on the floor outside of the bathroom and closed the door.
Dash and Dusty looked at the door, "So do you think the firecwacker will go off?" Lightning asked, she was answered by the sound of a explosion from the other side of the door.
"Yup." Rainbow said then the door opened revealing a wet and horrified Fluttershy.
"Hmm that firecwacker made a bigger boom than expected." Lightning said surprised.
Fluttershy's look of horror then changed to one of anger, "Firecracker?" she said angrily.
Rainbow rubbed the back of her head sheepishly, "Yeah uhh, so how was your day Mommy?"