@1 It is more noticeable during that time of the month. My friend picked me up at the airport in an American city about a month ago, and I could tell from the moment I got in her car that she was or had been menstruating. And yes… that was proven when we got to her house and I saw her garbage can in the bathroom. The smell is true, but I don’t know if it smells more like fish or like chlorine.
I remember in college one time, I picked up some chick in a club. We were both drunk and started fucking. Problem was, I needed to piss so I was trying to hold it but every so often I’d piss in her a little bit (don’t worry, I didn’t fully unload my bladder in her). We slept and in the morning, before she left, we did it one more time. She smelt of fish down there that morning, so since then I always assumed it was due to piss down there (either hers or someone else’s).