To the Brink..

Her back arches.... visibly a trembling shudder ripples through her body ... goosebumps rise up on her soft skin .. and a bead of sweat inches its way down the side of her face... her eyes are wide .. her mouth partly open.. and her breathing is laboured..

Her bladder .. now a swollen painful heavy medicine ball in her pelvis containing far too much urine .. a product of good hydration .. and unexpectedly no available place for relief for an extended period .. forcing her to contain her ever growing reservoir of piss .. her lower abdomen taught and bulging .. her slight frame providing this tell tale of the fight going on within her body ...

Once again her brain detecting the extreme pressure and fullness of her bladder sends a powerful urination reflex trying to force her to release... give up her resistance .. her bladder contracts strongly .. the added pressure causing her urge to pee to rise and rise towards to an overwhelming level ... once again exerting her self control she resists the urge .. tightening her sphincter .. inhibiting the reflex .. "Not yet!" a constant battle between her will and her body resisting the intense urge to urinate until the reflex subsides for now.. but the next will be stronger still.. she cannot keep this up indefinitely .. each time her buttocks clench.. her thighs press together tightly .. crushing her vulva between them.. her labia pressing hard against each other as if to create a physical seal ..

There is no where to go .. stuck in a broken lift there hasnt been anywhere to go for the last 3 hours.. when she got in she needed to pee quite badly but it was only a few floors then she would be able to pay a much needed visit to the ladies.. but unfortunately it was not to be..
She is panicking.. in pain ..grimacing with the effort .. eyes closed ... face to the ceiling.. doubled over back against the lift wall .. years of conditioning... She is an adult, a grown woman .. grown women do not wet themselves .. but a grown woman is not normally forced to hold such a full bladder for such an extended period of time.. the sweat on her brow .. her heavy breathing .. all a testament to the effort, will and self control it is taking to maintain this extreme inequillibrium until she can finally allow herself to urinate .. finally sit on a toilet her aching sweating clenched vulva able to relax and her urine held back for too long allowed to explode from her .. but not yet..
Again her bladder contracts.. her automatic system determined to reduce this now intense pressure .. again she tries to exert control "Not yet! .. I am not in a suitable place" her consious self, her will responds strongly to prevent urination.. the pressure rises and rises.. the urge to go rises and rises... even stronger.. she is shaking .. sweating .. her face is red.. her hand shoots to her groin.. squeezing, pressing adding physical pressure to aid her exhausted will and muscles...
It's not enough this time... She can feel it happening.. she panics .. using every ounce of will and energy she has to prevent it .. but the urge and pressure are overwhelming.. Her body is winning.. inside her knickers ... her pussy is red, damp with sweat.. lips pressed hard together .. trying physically to create a seal... its not enough.. shaking, trembling .. holding.. with all her might.. the powerful contraction of her bladder forces her internal sphincter open.. she tries to keep her external sphincter closed but she is fighting herself and her body is trying to overcome her control.. it opens .. under pressure the urine forces its way past into her short urethra .. out of the end .. briefly trapped in the small cavity behind her labia.. but more follows.. wee sprays out under pressure between her lips.. hitting her knickers .. wetting them ..
She bucks her hips.. tries to re-exert control... using tremendous self control she forces her sphincter shut and clenches off the flow.. her bladder is pulsating angrily trying to continue.. the urge to let go is intense but she fights it and maintains her hold.. for now..
Quickly she feels herself .. has it soaked through ? She knows her knickers are damp but her trousers are not showing.. but even as she assesses the damage her body sensing relief again attempts to make her urinate .. again she fights it with all her strength .. again its not enough .. a second hard spurt exlodes from between her lips and wets her knickers.. again she shuts it off .. but her resistance is dying .. twice she has managed to stop it .. for 10 minutes she has managed to hold the majority of her wee inside after her first lost of control but she has been forced to maintain control of a hugely overfilled bladder for too long.. in checking herself for damage her legs open and in a huge wave of intense urge and pressure her bladder overcomes her exhausted control.. a thick stream of hot wee forces her labia apart initially it sprays out soaking her knickers and trousers the pressure is high thrashing out .. soaking herself .. the floor .. she has managed to maintain control until her bladder contains nearly 1600 ml.. way more than it has ever been forced to contain.. her stream goes on and on.. she sinks down still weeing .. unable to believe that she, a woman normally so in control.. has lost control of one of her most basic functions.. tears of embarrassment stream down her face ..