Many years ago when I was at school, there was a girl next to me in the swimming pool, I felt a warm sensation on my leg from her pee jet.
Many years later, I was guarding a girl I was out with in a hilly area near some castle ruins, when she got up, my shoe and the bottom of my jeans was drenched with her pee. She apologised profusely, of course, I said "don't worry about it" and gave her a big hug...