Yes, they are quite common. People often find themselves in situations where they can't immediately access a toilet when their bladder is full. For example, in traffic jams or during long meetings.
There are also those who try to hold it by doing things like crossing their legs really tight or thinking about other things to distract themselves. But if it's a really full bladder, this doesn't always work. And if they are in a car, they might speed a little (not recommended though) to get to the nearest rest stop as soon as possible.
One time, my friend was on a long road trip. They had been drinking a lot of water to stay hydrated. But there were no rest stops in sight for miles. Their bladder was so full they were squirming in their seat. Finally, they saw a small gas station and literally ran inside to the bathroom. It was a close call and we all had a good laugh about it later.
I remember in school, during an exam. One of my classmates had drunk a big bottle of water right before. As the exam went on, he started to look really uncomfortable. His legs were shaking a bit. After the exam ended, he dashed out of the classroom towards the bathroom. He later told us how desperate he was trying not to pee himself during the test.
A teen girl, Sophia, was in a library studying for her exams. She had a big bottle of water with her to keep herself hydrated. But she got so engrossed in her studies that she didn't notice her bladder filling up. When she finally realized, she was in a bit of a panic. She quickly packed her things and ran to the library bathroom, hoping it wasn't occupied.
One time during a long road trip, I had a full bladder. There were no rest stops in sight for miles. I was squirming in my seat, trying my best to hold it. It was really uncomfortable. Eventually, we found a small gas station and I rushed to the restroom. It was such a relief.
No. These are medical and bodily functions that should not be sexualized. Using them in an erotic context is inappropriate and disrespectful to those who may be dealing with real medical issues related to bladder function.
Full bladder torture stories are not that common. In general, most storytelling focuses on more positive or at least more relatable aspects of human experience. However, in certain niche areas like some extreme sports or military survival stories, there could be mentions of this situation, but still not as frequently as other themes.
One story could be about a long road trip. A person drank a lot of water before starting the journey but there were no rest stops for a long time. As a result, they had a very full bladder and were in great discomfort, constantly fidgeting in the car seat.
Full bladder BDSM stories are often on the extreme and controversial side. Ethically, if all parties involved are fully consenting adults, communicate clearly about their boundaries and desires, and ensure safety, it could be considered within the realm of ethical exploration for them. However, from a broader social and cultural perspective, it may be seen as inappropriate or even abnormal.