Private Tutoring by ImoutoCommissions

Lettuce is going to be privately tutored by Pai, wearing a school girl 
uniform specifically because he thinks it looks cute on her. It's not 
often that he says things like that, so she thinks that must mean it's 
special, and it excites her to know that he thinks something she does is 
cute.

However, excitement is not the only thing she's feeling; she's also 
nervous, because she can feel the dull ache in her bladder growing more 
with each step. Long before they were together, she wet herself in front 
of him when he captured her, and he admits to still being intrigued by 
that. She isn't sure how to feel, knowing that he's developed such an 
unusual interest, but she is more than willing to give it a try for him.

"It's good to see my favorite pupil," he says, letting her in and 
welcoming her.

"It's good to see you too, Professor Pai," she says, blushing as she 
tries to slip into character.

The room she's in is set up a bit like a classroom, with a blackboard 
with equations written on it. He asks her to start solving them, and she 
gets to it, most of them rather easy for someone like her. Pai praises 
her, saying, "Very good, another correct answer," or, "I would expect no 
less from my favorite pupil."

As she goes on, though, things get a bit more difficult, and whenever he 
notices a mistake, he steps up behind her to gently correct it. Having 
him close to her makes her feel warm all over, though even that is 
hardly enough to distract her from the growing pool in her bladder, and 
it aches and throbs more as time goes by.

Things only grow worse as Pai fetches a bottle of water for her, 
insisting that she stay well-hydrated during their lesson. Each sip she 
takes from the bottle feels like a stab to her bladder, even though she 
knows the water won't actually hit it until later. She already has to 
pee so badly, and it gets harder to focus on the lesson, until she's 
making more and more obvious mistakes that Pai has to correct.

"Are you doing alright?" he asks, pretending to be oblivious.

"Yes, professor," she quickly lies, though she doesn't know how long 
she's going to be able to keep pretending that it isn't seriously 
bothering her. It's getting so bad, and she's tempted more and more 
often to grab at herself under her skirt just to try and make it more 
bearable, but she doesn't. At least for now, she's going to keep her 
dignity in tact, she decides.

But her bladder has other plans for her, throbbing in protest so 
frequently now that she can barely keep her composure at all. If she 
doesn't go soon, she knows she's going to humiliate herself in front of 
Pai for the second time, and whether that's what he wants or not, she 
knows that she has to at least try to be excused.

"P-professor?" she asks.

"Do you have a question?"

"U-uh, not about the problems, no..."

"Then what seems to be the matter?" He raises a brow, and she almost 
loses her nerve for a moment.

"I...I need to be excused."

"And what do you need to be excused for? Is there something more 
important than your lesson?"

"I...I...I really need to go to the bathroom. I'll be quick, but I..."

"Now, now...you know I can't just let you go in the middle of the 
lesson," he says gently. "If you're going to be a nurse, you're going to 
have to learn how to hold it for long periods of time, so just think of 
this as practical training."

She nods, mortified, and continues the lesson, working through more and 
more difficult problems. Her focus continues to slip, and she starts to 
bend as the urge to grab herself returns, trying to do whatever she can 
to alleviate some of the pressure. However, just as she's finding a 
comfortable position, she's prodded in the back and turns to see Pai 
holding a ruler, pushing her until she's standing up straight.

"You need to remain prim and proper, with correct posture," he chides 
her.

She whimpers softly, unsure how she's going to be able to carry on like 
this. It's getting so bad that the numbers swim in front of her and it 
takes all of her focus to make sense of them while also not losing 
control of her bladder. Even with the extra strength that her mew powers 
lend her, her muscles can only do so much and she can feel herself 
growing strained as she rubs her thighs together.

"Please," she says, speaking up. "I really can't make it..."

"But you need to correct your work," he replies. "See here? You've made 
some very obvious mistakes that I don't think it will be hard for you to 
figure out how to correct, if you only concentrate."

Frowning, she does what she can to correct it, but it takes her much 
longer than it would have normally due to the fact that she's nearing 
her limit. Even when she's done with it, he isn't willing to let her go, 
and she keeps working her way through the problems he lays out for her 
until he finally says, "Alright, this will be our last problem of the 
evening."

By now, she can't even hold still, and she hopes that she has some 
chance of making it until the end now. However, this problem is the most 
difficult of them all, and one she would have trouble solving even if 
she weren't so desperate that she can hardly think straight at all. Her 
breathing comes in ragged gasps and her whole body is shaking as she 
strains to hold on for just a few more minutes, just until the problem 
is solved, but it's only halfway through that she feels her knees 
buckling, and she lets out a cry of distress as her bladder finally 
gives out.

He remains silent as he watches the stream gushing out of her, soaking 
down her legs and drenching her pantyhose, and Lettuce's hand is still 
frozen with a piece of chalk in it, part way through writing. She closes 
her eyes and her face burns in humiliation, but the feeling of relief, 
the feeling of her bladder growing steadily empty and no longer strained 
is so wonderful that she nearly moans.

Once she's done, Pai examines the large puddle on the ground beneath 
her, impressed, before he says, "Please lift your skirt so that I can 
assess the damage."

Blushing furiously, she does as told, somehow more embarrassed to show 
him this than she was any times she was far more exposed. He can see 
just how soaked and stained her white pantyhose have become like this, 
and she can tell by the slightest shift in his expression that he is 
very, very pleased.

"I think we can end our session a bit early," he says, and begins 
leading her to the bathroom to get cleaned up. "And I promise you, no 
one will ever know about this but me."