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Luna's sitting in her shower learning new methods to pee in her diapers and gaining trust that they wouldn't leak when sitting with her legs crossed. She often wears diapers at school and didn't want to risk leaking and being found out that she still enjoys wearing diapers when she's 10 years old.
After several weeks of testing she's comfortable enough to sit in the school desks and pee while cross legged. She never had a leak and was happy about it. Though she probably should have realized that if she could pee sitting normally and not leak, sitting cross legged wouldn't/shouldn't be any different.