I'm mainly referring to the smell of sex between a man and a woman. I have personally never been a fan of it. I find that when me and DP have sex, the smell seems to linger for hours afterwards. I end up spraying half a tin of air freshener sometimes to try to mask it. We are in an old house with no air conditioning, which is the case for a lot of people I assume. The only way to get fresh air in is to open the windows. The smell still lasts for a while even with the windows open. I also don't like how I myself smell when he cums inside me. I can't imagine asking someone in person if they like the smell of sex with their husband/partner but I sort of get the impression that most people like it.