Once again continuing on the pregnancy theme. If it's not for you, no worries.
Heather's constipation episodes had continued, but not gotten too much worse, so she didn't make an issue of it. Still, there were many days her bowels suddenly woke up at an inconvenient time and she'd had to squeeze her anus shut to keep her load in until she could get to a toilet. A few times it didn't work, and she loaded her panties with several days' worth of poop, and often peed herself at the same time because her pregnant bladder always seemed to be full.
Now just over 6 months into the pregnancy, Heather was fully showing, and she thought increasingly how attractive she was with a baby bump. Lauren and Kelsie had been very clear about the fact that they thought the same thing, telling Heather how beautiful she was, and giving her plenty of physical and emotional affection to reinforce their statements. She had never felt more attractive or loved.
While air travel in the third trimester wasn't usually advised, Heather had received permission from her doctor, run the idea of a baby moon by the young couple so she knew they'd support her, which they did, and cleared it with work, as did Lauren and Kelsie so they could all enjoy a week with each other with no work involved.
Lauren and Kelsie split the costs of air travel and hotel, as well as a rental car. This was meant to be a celebration of Heather and her healthy pregnancy, and the selfless sacrifice she had made for the young couple by growing their child in her womb so they could become parents after finding out they physically couldn't achieve it on their own. Heather was not meant to worry about anything.
As their trip neared, Kelsie thought it would be fun to plan a hold for their trip. While they were only going a few hours away to the other coast, California specifically, it might make the flight more interesting if they were all desperate through the flight. Lauren and Heather agreed, though Heather was understandably a little hesitant as her constipation could prove to be an inhibiting factor. She might not actually need to go leading up to the flight, or she'd simply be constipated and couldn't go, which might take away from the fun. Still, she agreed it would be worth trying, just to see what would happen. The public desperation concept still appealed to her, even in the third trimester. So, at the right time, they all started holding their bowel movements, preparing for a desperate flight, and packed bags early to worry about less.
The night before their flight as they were double-checking things prior to their morning departure, Lauren and Kelsie were already feeling pretty desperate to poop. Heather was very full, but not yet feeling her bowels pushing. Some part of her hoped that would change soon so she would need to actively hold her load during the flight. She was eating plenty to take good care of her growing baby, and it seemed like she'd be feeling a more pronounced need to poop soon. After all, even with her regular constipation she'd only go about 4 days before her bowels would start pushing, and she was at the end of day 4 now. While she was thinking about her bowels, she felt a major flutter in her belly and called Lauren and Kelsie over just in time to feel the baby moving around, which she could now easily feel from the outside of her belly, as could her girlfriends. It was an emotional experience for all of them, especially Heather knowing she was carrying a healthy pregnancy, and would make her young couple proud. She would make sure to have them over after the baby moon so they could feel the baby moving more. Of course, as she was savoring the moment, feeling the little elbows and occasional feet, one foot kicked her bladder which happened to be very full before bed, and Heather shot upright, squeezing her legs together and yelping as she nearly pissed herself on the spot and had to do an instant pregnant lady waddle to the bathroom before she wet herself, barely making it onto the toilet before she exploded. Lauren and Kelsie were instantly aroused by what just happened, but as Heather sat down, she suddenly felt another baby kick massaging her bowels, and she instantly felt them wake up with a vengeance.
She grunted with the sudden intense pressure, and squeezed her asshole shut as her load started trying hard to open it. Kelsie had followed Heather in and saw the look on her face. "You need to shit bad, don't you?"
"Yeah, baby gave my bowels a massage, and they woke up in a big way. I really need to go."
"You know you need to hold it," Kelsie said, "right?"
"Yeah," Heather said, "once I get it in control, I'll be okay."
She did manage to get it in control quickly, then she started getting ready for bed alongside Lauren and Kelsie, all three squirming slightly against their growing need for a bowel movement. After getting ready for bed, they all gave each other hugs, and Lauren and Kelsie gave Heather's belly brief kisses, touching Heather so much she almost started crying. These two really did love her, she once again realized.
The next morning, after a mildly restless night of sleep for each, they woke up and started getting ready for their flight, each showering with a desperate need to shit, and eating breakfast the same way. Heather for her part peed a couple times after waking up, her bladder always seemingly full, but Lauren and Kelsie only peed once each on waking up, then held it from that point forward.
Finally, it was time to leave, so they packed the bags in the car, including a carry-on for each with spare panties. Each of the women wore dresses and skirts, the most comfortable option for a long day of air travel while holding back massive loads in their bowels.
By the time they reached long-term parking, Heather had to pee again. There was, of course, no bathroom at the parking lot, and Heather had to suffer with her full bladder in the bus all the way to the terminal, every bounce making her think she'd piss herself. Baby even kicked her bladder once, causing a leak. But she held it the rest of the way with significant difficulty.
When they got to the airport, Heather informed Lauren and Kelsie she had to find a bathroom immediately before she pissed herself and did her sexy pregnant lady waddle to the nearest bathroom before rejoining the others a couple minutes later. Her panties were damp but would dry quickly. Her bowels were now very active though as she was on day 5 without pooping.
Lauren went to check their bag, then rejoined the others a few minutes later. They had all gotten boarding passes on their phones, and all had expedited screening, so their time getting through security would be minimal. They got in line a couple minutes later, all feeling quite desperate. The line was a little long today, and by the time they reached the front to present their ID and boarding passes, all three were feeling serious urgency from both bladders and bowels. Heather was surprised by this, as she felt like she had just peed. But she was also pregnant, and was also holding in 5 days of shit, likely compressing her bladder.
They got to the X-ray line a couple minutes later, put their belongings on the belt, and moved to the metal detector to walk through. Lauren and Kelsie walked through with no problem, but the machine beeped when Heather went through, and the officer directed her to random screening through the body scanner. She had to wait a couple minutes for an officer to scan her, feeling progressively more desperate to pee and poop. Finally, she was scanned with legs apart which was torture, only to be met with more torture. She had alarmed in the groin and needed a pat-down. The officer explained the process, asking if Heather needed a private screening, which Heather did not. She advised the officer that she had to use the bathroom badly, and not to press anywhere too hard. The officer seemed sympathetic, maybe she had children of her own. The pat-down was quick but caused Heather to nearly leak in her panties. She was finally done and moved on. Only then did she find out that she'd forgotten to empty her water bottle and had to wait for an officer to empty it and run it back through the X-ray, causing her to dance desperately in place as her bladder was denied relief even longer.