After finishing a batch of delicious candy, Bon Bon knew she’d have to store it safely. Lyra had little to no self control and Bon Bon had to be able to at least have something to sell. Plus, eating an entire tray of candy in minutes probably wasn’t healthy.
 
Just as the candy was done, the earth mare quickly separated one piece and put the rest of the tray in a closet, locking the door and taking the key with her to hide it.
 
With the key in a location only she knew, she made it back to the kitchen where Lyra now stood excitedly, ready to attack the latest batch of candy.
 
The unicorn asked about the location, to which Bon Bon replied by giving her the one piece she had selected for now.
 
“Where’s the rest of the tray?” Lyra asked disappointedly.
 
“You aren’t devouring it in one sitting like the previous ones. You can have this one and only this one for now.” Bon Bon replied, putting a strong emphasis on the word “only”.
 
Lyra put the entire piece of candy in her mouth, angry to be denied the big prize, but it was better than nothing. She wanted the rest of the tray and wanted it now. Maybe if she asked Bon Bon for the key every second she’d give up. Maybe if she begged Bon Bon she’d decide to give her the key. Maybe if she promised not to eat it so quickly…
 
“No, you’ve already promised that the previous times and we both know how well that went.” Lyra was running out of options. She needed something else she could bargain with. She could lock something Bon Bon wanted, but what could she lock? What things were there in her house that could be locked? Would Bon Bon want those things unlocked?
 
Lyra started wandering around the house, remembering something as she passed by the bathroom. The bathroom door had a lock, and its key was hanging inside the bathroom. The most devilish of grins ran through Lyra’s face as she got in for the key and walked back to the kitchen.
 
…
 
“Hey, Bon Bon? Since I can’t have candy, can I have some juice at least?”
 
Bon Bon turned her head to the kitchen door, where Lyra held a large bottle of apple juice in her magic. “…well, sure.” Bon Bon replied affirmatively.
 
“Do you want some too?” Lyra followed. The question made Bon Bon aware of a slight thirst, remembering she had been working on the candy for a good while and hadn’t had much to drink.
 
“Yes.” Bon Bon responded. Soon enough, Lyra walked into the room, carrying two large glasses of juice with one filled noticeably more than the other. Lyra gave the other glass to Bon Bon, very careful not to spill it as it was filled beyond the brim.
 
“I didn’t know how thirsty you were, so I poured you a lot just in case!” Bon Bon looked at the two glasses, noticing Lyra’s wasn’t even half full but not questioning her logic. The earth mare took her glass in her hooves and took a large sip to keep it from spilling.
 
Both the ponies slowly drank the glass. Lyra was finished very soon and went to the kitchen to put the glass away before coming back to the living room to her roommate barely half through her large glass. She kept drinking as she didn’t want to waste the juice, but it was massively overkill for her little thirst.
 
She took frequent small sips for a while, and just as she was about to finish it…
 
“Do you want some more?”
 
Bon Bon responded negatively, but it was useless. By the time those words were pronounced, the glass was the exact opposite of what it had been seconds before, and Bon Bon had another large amount of liquid to go through.
 
…
 
“No, no, I don’t want any more!” Bon Bon quickly responded as she put her own glass away with Lyra about to fill it for the third time. One glass had been more than enough, two had been too much, but three would’ve been downright impossible. Bon Bon felt bloated by that point. “What’s with you and juice?”
 
“Oh, nothing, I just felt like you may have been thirsty and…”
 
“I was thirsty, not a camel!” Bon Bon exclaimed. She sat back on the sofa, her belly bulging a little. Luckily for her, she felt a little less bloated as it went down, but the worst was to come.
 
Bon Bon suddendly rose from the sofa, quickly reaching to her groin as she stood up with her knees together. “Eep!”
 
“What’s wrong, Bon Bon?” Lyra asked in a teasing tone.
 
“I… nothing, I just need to do a thing.”
 
“Okay, good luck with the thing!” Bon Bon barely heard the last word as she sprinted towards the bathroom and scrambled to open the door, but the knob didn’t turn a single degree. Bon Bon started jumping in place, trying to apply more force to the knob, but it remained still.
 
Lyra’s giggle could be heard from down the corridor as she couldn’t help but be a little amoused by the scene. Bon Bon looked at Lyra as she started jumping from one hoof to the other. “It’s not funny! I can’t open the door!” However, Lyra remained giggling and the door remained locked while Bon Bon started putting pieces together. “What have you done?”
 
“Oh, nothing… it just seems the bathroom is locked.”
 
Bon Bon stopped jumping and just started wiggling with her legs together, too desperate to stay still. “But we’re both outside! Who’s even using it?”
 
“Nopony.”
 
Bon Bon bounced in place, trying not to make a puddle under her. “Where is the key?”
 
“Not telling you.”
 
Suddenly, it dawned on Bon Bon that that was related to the candy. “Lyra! I’m not giving you the candy! Now open the door!” She yelled with her arms against her sides, still bouncing.
 
“Then I’m not opening the door either.” Lyra poked Bon Bon’s groin, accenting her desperation. Bon Bon put her hooves down there again and started bouncing down the corridor, towards the hall. She tried to open the main door to get out of the house, maybe ask the neighbors to use their bathroom.
 
However, she was just as successful with turning the knob of the main door as she had been with the bathroom’s. Lyra followed her calmly, enjoying the show more than anything.
 
“Lyra! Where is the key to the door?”
 
“At the same place as the bathroom door.”
 
Bon Bon squirmed and pressed her legs together. “Lyra! I’m going to wet myself if I can’t get to the bathroom.”
 
“The more reasons you have to let me get the candy.”
 
Bon Bon started trotting towards the bedroom, opening the closet and all drawers she could find in a fruitless search for the key.
 
“Look at the mess you’re making! Are you sure you’re not better off just letting me have the candy?”
 
Bon Bon paid little attention to Lyra. As all the drawers were hanging and all the clothes were thrown in bed, Bon Bon moved to another room and started the process of gutting it. The earth mare was practically bouncing off the walls as she stirred the contents of every single container in their house.
 
Lyra just whistled, standing by before Bon Bon pushed her aside as she sprinted to another room. The mint unicorn just walked towards the kitchen, seeing Bon Bon in there checking the contents of every pot. The earth mare turned as the unicorn entered the room.
 
“Lyra, please! Just open the door!”
 
“Aw, little Bonnie drank too much juice and now she has to go wee-wees?” Bon Bon cringed at the teasing. “What’s that? She needs to go really, really bad?” Bon Bon tried to ignore both Lyra and her need to relieve herself and go back to searching for the key, but Lyra was keen on making it hard.
 
“She’s going to wet herself if she doesn’t get to a bathroom soon! She’ll go…” Lyra turned on the faucet at the kitchen, making Bon Bon cringe even harder.
 
The earth pony stopped looking inside pots and started jumping in place. “Lyra, stop!”
 
Lyra turned off the faucet. “That’s right! She’ll go just…” And she turned on the fauced again, making Bon Bon jump faster.
 
“Lyra! I’m going to…”
 
Lyra turned off the faucet, but the hissing sound didn’t stop. A second water stream started, right under Bon Bon, who was frozen in place as a puddle spread around her hooves.
 
“Whoops! Seems she should have given Lyra the key to the candy…”
 
…
 
Two mares sat in the sofa. One of them, a unicorn, read a newspaper without minding the other one. The other one, an earth pony, grumpily stared away as she sat in one of the former’s night diapers.
 
The earth pony nervously crossed her legs, felling the need to pee stike back but not wanting to say anything to the roommate that made her wet herself and diapered her. The gesture didn’t go unnoticed, however.
 
“Surrender yet?”
 
“You wish!”
 
“You know, soon enough you’ll be begging again.”
 
The earth pony uncrossed and crossed back her legs. She wasn’t going to let Lyra win easily, but if she didn’t surrender, it was but a matter of time before she was doing a potty dance all over the house again. At least, whatever happened, she wouldn’t make another puddle.
 

 
Holy shit, I wanted to give this picture a little more context here, but I went a little overboard. Like Bon Bon and the juice. Oh well. Those who like my stories may rejoice.