Contest: When Niamh Met Zoe

This is our entry for the contest Competition Time!!! by JamJarMonster .
I say "our" because I collaborated on this one with Zaeopolis , who wrote the following story, and also created the character of Niamh, originally.
Enjoy!

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Niamh glared at her glass unenthusiastically as it was topped to the brim with her sixth wine of the night. Stereotypical bar music played in the background, the music that even twenty years ago, when it was created, wasn't even popular. Rowdy drunks crowded the few pool tables, barely able to stand, let alone orientate themselves. And there sat Niamh, her chin up, even when she felt horrible like she did, she didn't want to let her regular body language of dominance depart. She thought through what had just happened in her small apartment with her boyfriend, holding back tears.
Forcing herself to thank the bartender, she took a sip of her drink and continued wallowing in her saturated depression.
Que Zoe. From her sharp, bright eyes to her unique pink hairstyle, she made the room glow with her presence. Her crop top complimenting her assets really helped her look, and the patchy jeans she wore with them assisted her also (save for a large bulge over her crotch area). Zoe did things with a look of innocence about her.
Zoe waddled through the room, her benevolent smile catching the eyes of many. She assumed a seat beside Niamh, a peculiar crinkle as she sat on her enlarged behind. She leant into Niamh, invading her personal space.
'Mommy?' she said in an infant-like manor. The pink-haired girl stared into Niamh's eyes.
Niamh, reacting hotly, spat: 'Who are you?'
'Mommy?'
'I'm not your -'
'Mommy?' Zoe continued whining.
'You're an adult! - Why on earth are you asking me if I'm your -'
'Mommy! I need the potty - and bad.'
Niamh felt like she ought to take another swig of her wine. The last thing she wanted right now was a girl messing herself in front of her.
'Pwease! Zoe doesn't want to have another accident in her diapey!'
Niamh uncomfortably became aware of her situation. The bulge in Zoe's jeans had been a diaper all along. An adult diaper. And the worst thing was, she rather enjoyed the idea of it. Niamh was guessing this girl was looking for a playmate. And, blaming the preposterous decision on the wine, she had found one. She swivelled to face her new acquaintance. 
'Zo-Zo, I would let you go to the potty, but nagging me is not a good way to behave, and wearing clothing over your diapey is certainly not acceptable. I want to know when you've been in your diapey, and how full it is.'
Zoe had been looking for a certain type of mommy - one that had a sexy firm hand and held dominance over her. As she was forced to strip herself of her patched jeans, she found herself getting defiantly aroused, blushing as for the onlookers and the fact that her need for the toilet was building.
Niamh's new found baby girl spun around on her swivel chair, giggling as her gentle, innocent mind watched the world blur about her.
Zoe could feel the heavy load of drunken men staring at her, and not for a good reason. She wasn't going to say that this wasn't slightly embarrassing for her. But the pleasure was too much, and she couldn't disobey mommy.
Meanwhile, Niamh had concluded her pondering over the miserable boy whom had cheated on her, for she had a new life to take care of. Halting Zoe in her content spins, she granted a delicate smile and placed two fingers down the back of her, now blatant, adult diaper. Zoe giggled as they forced their way down her silky butt cheeks.
'Good girl!' cooed Niamh, withdrawing her fingers. 'Still nice and clean! Though how much longer?'
Zoe stuck her tongue out, shaking her pampered butt adorably.
'Does mommy want Zo-Zo to go-go?'
Niamh held her condescending smile. She patted Zoe's rump as men began to depart the bar.
'I think it's better if you go now, so we can get you changed and we can see if you can use the potty like a big girl.'
Zoe smiled timidly, assuming her position. Niamh ran her hands through her fine, pink hair as she began to push. Clenching her fists tight, she raised her rump from the stool. A brazened hiss began the public humiliation, men no longer swarming around the tables and more watching in awe. Zoe moaned as she felt the urine encompass itself into the growing bulk of her diaper. Then, without even realising, the growing crowds shrivelled their noses as a rather noticeable lump of mess sagged the diaper further. Then another. And then another. Zoe's diaper sagged down between her legs. She was blazing red with embarrassment, she had never intended it to go this far. But as Niamh stroked her flourished cheeks, and soothed her with comforting phrases, she knew she had done no wrong, and most certainly had found her new best friend. 

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