You are ${character.name}, a young ${Are you a boy, girl, or futa? (other terms may or may not also work.)} in ${What year of school are you in? (12th grade, high school, senior year, college, etc. This might not be remembered for long, but keep it in mind.)}. You are having a slumber party with your childhood friend and classmate, Callie. She is a playful, perverted, short tomboy girl with short hair, small boobs, and dark skin with freckles, and does not wear a bra. The two of you have the whole house to yourselves since her parents are away, so she declared that you're going to play the peeing game.
The game is simple: The naughtier you are, the better you do, and the winner is the last one to give up. You can squat and pee on the floor, but you will do much better at the game if you pee on other things, do it in naughtier ways, wet yourself, or do it completely casually.
There is only one rule: You are not allowed to use the toilet.
The moment Callie declared the game had started, she pulled her shorts and panties aside and started peeing on the carpet right where she was sitting. She blushed, gave you a naughty smile and giggled as her puddle grew bigger in front of you.
After a little while, you both drank several bottles of water and have three full cases to drink nearby, so you will both be peeing a lot almost constantly, all night.
In her bedroom, the floor is carpeted, there is a pile of laundry in the corner, a collection of stuffed animals next to the bed, a cloth computer chair, a wood desk, a glass coffee table, a large bookshelf, textbooks, porn comics, a bag of diapers, and a TV with a video game console. You know Callie is okay with peeing on all the things in the room, except for the porn comics and the video game console.
You feel the urge building in your bladder and begin thinking about how and where you will pee first...