Babysitting by ImoutoCommissions

   Ichigo is visibly nervous about leaving her kittens alone with 
Pudding's siblings for the first time,
   but it's Pudding's twentieth birthday and Masaya has done all he can 
to reassure her that it's just
   fine for them to go. She double checks that Heicha and the boys have 
the number for all of the
   Mews, as well as the hotel that she and her husband will be staying 
at after the fact, and tells them
   that, even though they're litter-trained, that they haven't gotten 
used to the idea of using the toilet
   yet and that they'll squat on the floor if their litter isn't kept 
clean.

   "Pai and Lettuce should be by once the party's over," is the last 
thing Ichigo says before they
   leave, "so you only have to watch the kittens until they get here."

   As soon as the adults are gone, the quadruplets all agree in unison, 
"We don't deal with girls,"
   and, despite Heicha's protest, they round up Kuroichigo, Ringo, and 
Rubus, not seeming to care
   that it's very unfair for the four of them to have three children to 
watch while Heicha is left with
   the remaining four by herself.

   And trying to herd the four children by herself is difficult, 
especially considering they're very hyper
   due to the excitement of a new place. At first, all they want to do 
is play and run around and
   explore, and Heicha can barely keep up with them. She's not nearly as 
energetic as her older
   siblings, so it's exhausting trying to match the energy of younger 
children, and she's only able to
   briefly get them under control when she asks them to please sit down 
for dinner.

   At the very least, they're hungry enough that they eat without 
causing much of a ruckus, but as soon as their plates are cleared, all 
four girls spring up and begin running around again, giving Heicha no 
time to clear the table. However, they use their litterboxes so soon 
after dinner that she can't even think about cleaning the dishes, since 
she has to keep that clean instead. She decides to leave all other clean 
up for later, and, while she's finishing it, Kinomi runs up and says, 
"Will you play house with us?"

She doesn't really want to; she'd rather watch and take a minute to 
rest, but she knows that they'll get upset if she doesn't agree, so she 
does. "You can be the baby!" is the first thing Kiichigo, the ringleader 
of her sisters says, and the other three agree with such ferocity that 
Heicha could not hope to argue with them.

And so, she gets forced into the role of an infant, only able to break 
character whenever one of them uses their litterbox, because she still 
wants to keep them clean. At least, she tries to do that, but there are 
times when they won't let her free from her role as an infant for so 
long that she doesn't have a chance, and doesn't even notice one of the 
girls making a mess on the floor until it's too late.

At that point, Heicha has to cut the game short, because she refuses to 
leave a mess like that sitting. It's during the clean up that she feels 
a sharp pang from her bladder and realizes that it's been a long time 
since she's had the chance to go to the bathroom, and that she's 
actually much more desperate than she realized in her distraction. 
However, it's already too late for her, and before she can make her 
excuses, the needy kittens demand that she play hide and seek with them.

The worst part about this game is knowing that she has to drag this out 
longer than she wants to. She could find any of them easily, but they'd 
just protest "no fair" and find somewhere else to hide, so she has to 
make a big show of looking for them all over before she checks their 
very obvious hiding places. All the while, her bladder aches and throbs, 
and so many times she feels close to losing it before the game is even 
over.

After that, it's finally late enough to be bath time, which proves to be 
it's own kind of torture. First of all, trying to get them into the 
bathtub is difficult enough as is, and they all resist with all they 
have before she finally manages to coax them into it, but once they're 
in the running water, and Heicha has to sit next to the tub and listen 
to the water and the kittens splashing in it, she isn't sure if her 
bladder can take much more.

She's jealous of them for having freedom all night to use their 
litterboxes, whereas she is left squeezing her thighs together and doing 
all she can to keep them from catching onto how desperate she has 
become. There are a few close calls while she's bathing them, when she 
feels a spurt of liquid escape her to dampen her panties, and it's all 
she can do to hide the strain as she forces herself to hold back.

She's nearly trembling as she leads them to get into their nighties for 
bed, and once she's tucked them in, she thinks she'll finally have a 
moment to herself when Ume pipes up, "Will you read us our story?"

"St-story?"

"Yeah!"

"We want a story!"

"We can't sleep without one!"

Naturally, they take an eternity to agree on a story, and they pick one 
that seems far too long for Heicha's liking, but all she can do is read 
it, fighting back tears and forcing her voice to sound cheerful all 
the while. She can't sit still anymore, uncrossing and recrossing her 
legs and grabbing herself and shifting, but the children are young 
enough that their focus on the story keeps them from noticing. By the 
end of the story, they've drifted off to sleep, not even noticing the 
way she hasn't been able to let go of herself, and she quickly turns out 
the light, barely able to stand up.

She can only barely hobble to the bathroom, her movements greatly 
hindered by her desperation, and her bladder protests more and more with 
every step until she's just outside the bathroom door, just a few steps 
away, and that is when her bladder gives out completely. Even though she 
was feeling grateful for not humiliating herself in front of the 
kittens, all feelings of gratitude slip away as she begins to wet 
herself, urine gushing out of her and running down her legs, puddling on 
the floor beneath her.

Heicha lets out a soft wail, and then she's blinded by a flash of light. 
It takes her a moment of blinking to figure out that it's her brothers 
taking a photo of her moment of humiliation, and her distress is quickly 
replaced by rage. She realizes that they were almost definitely hoping 
that this would happen, and that they're enjoying this, and she begins 
getting on their case as loudly as she can without waking up the 
kittens.

"You perverts!" she says, scowling as tears run down her red cheeks. 
"Why do you always have to be gross like this all the time? You could 
have helped me but instead you made me wet myself!"

A squabble quickly breaks out between the five of them, and that is what 
Lettuce and Pai walk in on when they come to take over watching the 
kittens. It doesn't take them long to figure out what's happened as they 
break up the fight. Pai takes over scolding the boys while Lettuce 
cleans up the mess and takes Heicha off to help get her cleaned up as 
well.

"You did a very good job," she assures the sobbing girl. "Don't worry, 
I'll make sure that Ichigo knows you did a great job taking care of her 
kittens."

Thanks to Lettuce's kind nature, she is able to soothe Heicha for the 
most part, and make her feel a lot better.