Tina quickly realized she may have made a mistake sometime during cooking. She only accepted the recipe out of politeness, and never actually intended to ever make it---this, unfortunately, meant she was a little clueless when trying to follow it. While the curry tasted fine, it's clear that the stomach upsetting properties were amplified when Tina felt herself bloat to an excessive degree. She was unprepared, trying and failing to hold back a bubbly fart and making it warble; from the heaviness she feels, it's obvious something more is on the way, and she has seconds before it gets out.
Leah starts chuckling, making Tina blush in addition to feel happy before loud gurgles make the teen look sick. As she no longer had the ability to control her gas, Leah was helpless to prevent a violently wet fart vibrate her chair for a good 3 seconds. She stops laughing, and starts to look sick. They look each other in the eyes, silently realizing the situation they're both in.
"Tina, I think I-" Is all she gets out before she groans in pain, and explodes into her training pants. Tina can feel pressure pushing at her own back door rising with alarming intensity, standing up in conflict whether to help Leah or go to the bathroom. She also stands upright from her accident, looking mortified; any humor she might have found is gone, replaced with only pain and embarrassment.
They both wordlessly start moving towards the bathroom, a symphony of liquidly farts consistently leaving Leah. Tina feels her own limit quickly approaching, little squeaks still making it past her control.
It takes only a few steps before Leah let's out another explosive shart, trying to move as best she can while filling her pants with liquid. Tina has to put a hand on her behind in a desperate attempt to keep everything in, body screaming in pain as she finally approaches the bathroom door. She looks back to see Leah hobbling forward, butt leaking solids, liquids, and gasses readily.
Tina thinks for a moment whether she should use the toilet and lock Leah out, wondering if that would be taken terribly by the teen or not. That pause was all it took for her body to give up, the pain and pressure too overwhelming. With everything being held back, the burst of shit instantly inflates the back of Tina's jeans into a bulging brown mess, the sound equivalent to squeezing ketchup out of a bottle. She can't help but let out a sigh of relief as all the horrid torture in her belly disappears instantly.
She glance at Leah, who looks shocked even amidst her own raucous accident. Humiliated and uncomfortable, Tina could still feel commotion in her stomach and knew she was far from empty. She ran through her head on how to deal with the situation, and decided...