Why do some people think sex is gross?

Answer 1

Because feces blows out of your butt when you're getting railed in the butthole...that usually could mean it's going to smell fowl. Vagina's can smell like rotten fish. Sweating on another person means sticking together and swapping sweat droplets. Bad breath on a person would make it miserable to be the person having to endure the workout being performed. It's an odd thing to want to get naked and "bump uglies", but the gratification of it is what makes it worth all the nastiness.