Scientifically, what number of times per week “should” partners be sex that is having?

Scientifically, what number of times per week “should” partners be sex that is having? Let’s begin here: “The Three Things You Can’t speak about” in many first-world, middle-class-ish existences are intercourse (which produces you), cash (which drives many people), and failure (which occurs to every person nearly hourly, but nobody generally seems to ever like […]