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The urge began to bother you even before you made it to the platform, a pressure urgently growing in your tummy, you told mommy before you even got to station but she quickly reminded you the subway toilets were out of order, they always were.
“You’re a big girl honey I'm sure you can hold on until we’re home, right?” She glanced down at your wide eyes and smoothed your cheek lovingly with her thumb; for a moment the urge faded away and you nodded in response; following her onto the train.
For a sunday it was busier than usual -but no matter, as you managed to find your normal seats at the back of the train; after a while of sitting in silence and watching people jump the gap and rush through narrow doors for a seat, a series of short announcements echoed through the carriages, a technical issue would be stalling your trip back home- mommy didn’t seem phased tho, if anything she seemed happier playing with your hair in its new style she did up that morning, she always helped you get dressed in the mornings, she’s the reason for your extra short skirt and cotton white panties, matching socks and shirt. You wondered if there would be time in the delay to find a nearby toilet in one of the bigger carriages but she hushed your worries- the trains would be leaving soon and the last thing she wanted was you getting left behind.
Reluctantly you agree, feeling the pressure tighten in your gut, you would really be desperate soon.
30 minutes passed quickly- people sighing, apologetic announcements, and mommy reassuring you that you could hold it, the train hadn’t budged.
You were restless and squirming enough for mommy to notice, her arm wrapped around your back and you felt a little more at ease. “Not much longer hun, but if you need to pee a little that's ok.”
Your body seemed to react to her words before you could as you suddenly felt a warm gush between your legs, you gasped, pressing your legs together and halting the flow of pee. Mommy of course noticed “did you have an accident?” she whispered
“I peed” you mutter covering your face with your hands and feeling your cheeks turn red, you expected mommy to hurry you off the train to find a toilet but to your shock she reached under your thigh length skirt and cupped your wet panties
“oh sweetheart you did-” you looked around in a panic, thankfully no one seemed close enough to notice what she was doing, you pushed her wrist away from your wet panties but she put her hand right back “it’s ok darling, mommy just needs to check- was that everything or do you still need to pee?”
Your lips were falling into a pout at that “I really need to go” she smiled reassuringly at that “that's fine honey, there's no toilet here so if you can't hold on just let go alright?”
A trickle of warmth quickly saturated your panties again, this time you didn’t stop it, the trickle quickly turned into a stream being absorbed by the squishy seat below, some ran down your thighs being soaked up by the cuff of your socks, there wasn’t much at all but for the 30 seconds you sat there peeing yourself with mommy rubbing your cheek it felt like an hour. It was relief and pleasure colliding with the sheer embarrassment that consumed you from the very public space- it was a feeling nothing else could recreate, though you would never admit it to mommy, you loved the feeling. Once your stream had returned to a trickle and the last drops were absorbed by the seat below you turned back to mommy who had been watching you intently
“finished?” she whispered, not waiting for your reply before her hand met your panties again, even more wet this time and not just from the pee.
She gently rubbed the wet fabric against your pussy and could have nearly moaned from the pleasure that shot through you; mommy noticed your face and smirked, pulling her hand away, (much to your dismay) “was that everything hun?” she seemed to read you like an open book, you relented and told mommy that there was something else, and you couldn’t hold it in any longer. “Baby that's ok, you can go poop too if you need’
Just as she said that the loud speakers crackled and a deep voice announced they had fixed the issue, trains would be departing momentarily. -It took a moment before you realised what that meant, you were now stuck for the rest of the train ride home in pee soaked panties moments away from adding a pile of- the carriage jolted as it started to move and oblivious passengers surrounding chartered amongst themselves.
You turned to mommy possibly for permission, but also out of fear; you could have guessed but her solution to put you at ease was once again groping your pussy through wet fabric, she tentatively rubbed your clit and you closed your legs around her hand instinctively, she laughed at the motion and dragged two fingers down your slit, you felt for sure you would have moaned in any other situation.
The urge worsened every minute, your hole was almost pulsating as a hard brown snake tried to escape it. You didn't get any time to think as it parted your hole and cheeks, a thick brown poop curled into your pale wet panties, a crinkly wet noise filled the air between you both and you pushed a little as your panties tighten against the messy little pile, another push and a thick log forced its way through your clenched cheeks and up your crack adding to the stinky mess in your panties, you thought for certain some had slipped out, there was too much and sitting down meant each piece had slipped further up your crack and panties.
You were bought back to reality when mommy pulled aside your panties and stroked your wet folds, you whined softly and she pulled her hand away, sliding it around your skirt to feel the mass that had erupted into your poor previously white panties; you felt her breath tighten as she groaped the bulge, rubbing the firm mess just enough for you to feel the extent of your accident.
What followed for the remainder of your ride home was mommy secretly groping at your panties while her hot breath whispered temptations and filthy desires. When the train eventually came to a holt and the doors slid open you could smell your mess, in fact you were fairly certain the whole train might have noticed- mommy stood up first, obviously wanting to sneak away before the incoming passengers noticed- pushing away your fear you stood up only for your face to instantly drop with horror, a chunk of poop slipped out and plopped back onto the seat, you turn back and see the soaked lining of the seat now soiled with a sloppy brown accident -you didn’t need to look up to know people had seen, or heard, or smelt it…