if there’s a lot of women in a room, that smell lingers even after they’ve left.

I could only see this being true if it was a small room and they were all masturbating. Or, if one of them had a particularly bad infection or something, in which case that’s just a sign someone needs to go to the doctor.

I’ve never in my life smelled ‘fishy’ smells from a woman whose vulva my face wasn’t touching.