"There's an entire sub-reddit devoted to this sort of imagery, though not explicit. It's a pretty common dream that lots of people have, with weird crowded bathrooms with now privacy. https://www.reddit.com/r/ThatBathroomMazeDream/"
"On perhaps the most important day of their life, it's only natural for a Bride to need to pee before the main event. With the fear of wetting herself as she walks up the aisle, she opts of a quick pee in the shelter of the car park outside the church. It's at this point in time that she wishes that she hadn't let the best man cum his load in her earlier."
"It's the duty of every mother this day and age to teach their daughter the art of 'predicament peeing', the art of taking a quick pee in an otherwise public place without making a fuss. The squatting pee is perhaps the most important and keeping a good balance and angle of flow results in the least wetting of the thighs and backside."