Leah felt herself squirm at the pressure, everything in her body telling her to let go. She takes in a breath, and steels herself---she won't let that happen. She takes it strategically, one step in front of the other, with the rest of her focus on keeping her sphincter tight. Slow and steady. She thinks she might be over doing it a bit, but she REFUSES to poop herself. Well, poop herself anymore than she already has. The feeling of feces on her bare ass made her want to cry, but she won't let it. She swings her door open, and marches, focusing on nothing else. The feelings in her bowels are of a level she's never felt before, making her wonder if she ate something her body didn't agree with. Tiny little toots escape with each step, each a little too audible for her liking. She blushes harder, never having had a hard time holding her gas in before. She only hopes it's not enough to wake up Rita, and she can change before the older woman sees her.
She finally makes it to the bathroom door, and she can feel her limits being reached. She's never felt this much pain from needing to poop before! She can feel sweat run down her face as she reaches out to grasp the door knob, heavy breaths intermixed with whines of pain. The door opened up a sliver, letting her slip in and close the door. Finally, within the privacy of the bathroom and no longer at risk of being caught, Leah felt an involuntary sense of relief.
To her absolute horror, it was enough of a lapse for a goofy fart to escape, and kickstart her bowels voiding. The change was so fast that she when she tried to hold it again, she was entirely unable, standing there and filling her pants one grunt at a time. Realizing her mistake, Leah tried running towards the toilet just feet away, but found herself caught between cramps causing her to involuntarily push and moving her legs forward. By the time she was by the toilet, she realized there was no point---she would cause a bigger mess trying to get her diaper off than just letting go. Tears built in her eyes as she realized, the toilet feeling so distant despite her being in touching distance. She couldn't stop herself from letting out a few sobs as she squatted and pushed, finally emptying her guts of its gunk. As her ass sputtered to a close, she...