Lauren and Katie had become fast friends, brought together by random chance, kept together by their love of their secret fantasies. When they first met, Lauren had flown across the country holding it and had peed and pooped in her panties right before getting to the hotel where Katie was running the desk. Katie was desperate, Lauren knew it, and she made her hold on and come up to her room. Lauren forced Katie to wait, causing her to unload three days of poop and a full bladder in her panties and they'd masturbated in their messes together.
Since then, they'd each made each other hold it whenever they could, and often had held it just so they could inform one another that they were desperate and needed permission to relieve their bursting bladder or bowels. The first time after that night, Lauren had woken up the day of her conference desperate to pee, told Katie by text, and she said Lauren could have her morning pee but would need to hold it the rest of the day. Lauren obliged, and when she arrived back to her hotel room bursting, she found Katie at her door also bursting to pee. They'd entered together, both holding in their bursting bladders until someone lost it. Lauren was the first, as pee started flooding her panties before she even made it to the bathroom. She actually got some pee on the carpet, which Katie said was no big deal. Katie had then asked a wet Lauren to tie her hands to the shower curtain bar until she wet herself in the tub. Lauren obliged, using a belt to tie Katie's hands together over her head. She sat on the toilet seat for a few more minutes watching Katie potty dance in restraints, begging to go to the bathroom which of course Lauren denied, finally resulting in Katie having a massive wetting in the tub unable to reach the toilet.
When Lauren left to go back home, she called Katie letting her know she'd stay in touch and stay in touch they did. Nearly everyday they were either texting or calling one another, getting to know each other and sharing new desperate experiences with each other. They also started figuring out the other's bowel timing, hoping that they'd be able to do a multi-day poop hold together over the phone. Finally, they were able to get the timing right, with Lauren holding four days safely before she couldn't hold her load anymore, and Katie's maximum hold time of three days. While Katie never really got constipated, she just wouldn't feel a need the first day, and would only notice it on day two, and desperate day three. Still, with the timing figured out, they were free to do a hold together if they could time it for a day they were both off work, or off early, which meant Friday or Saturday.
The pair discussed possible holding scenarios a week earlier, and a few came up: a basic office scenario, where both were working in an office with no chance to use the bathroom; holding it in on a road trip; students in a long college lecture with a professor who wouldn't let anyone leave no matter the situation; and of course Lauren's original idea, an aircraft emergency landing while they were bursting together. Ultimately since Lauren had initiated this unbelievable relationship, Katie elected to let her take the lead on playing out her original scenario of the aircraft landing. They agreed to play it out Saturday, as they both had the day completely off. They discussed the timing, stating that they'd eat as much as possible the day before to really make the result satisfying, and charge their phones to connect all day. Then Lauren had a thought. What if they were to have iPads on tables next to their chairs to simulate like they were actually sitting together on a plane? Lauren ran it by Katie, and they both had that option. That would make it slightly more believable and would add to the appeal of the scenario.
When both awoke on Saturday, they each had a feeling of joy that they were finally doing a holding scenario with the other. And of course, they both woke up dying to poop. Katie texted Lauren first, seeing if she was awake. Lauren texted back less than a minute later saying she was, and Katie immediately called her. Lauren picked up on the second ring.
"Do you have to piss as bad as I do?"
"Well, yeah, of course!"
"Do we go or hold it?"
"Hold it, right?"
"Yeah, at least until after breakfast."
"That might be tough," Katie said, "because I also have to take a shit VERY badly."
"Yeah, me too. Did we eat too much yesterday?"
"Not necessarily, it just might need to fast track our plan today, so we don't lose control too quickly."
"Good idea. In the meantime," Lauren said, "let's text through breakfast while we hold everything, then maybe wet our panties together and shower?"
"Sounds good to me, talk to you in a few."
They hung up, and both made a large breakfast to torture their bowels, texting each other throughout as their bladders begged increasingly for relief.
When Lauren and Katie were done breakfast, Lauren called Katie.
"Can I please go pee? I'm bursting here!"