Ask most adults to point to the vagina on a diagram and a good number will point at the outside of the body. It is one of the most common naming errors in everyday English, and it is worth correcting first, because almost everything else in female external anatomy is built on that distinction.

There is an old cliché that men don’t like to ask for directions. While that might be a tired trope when it comes to a Sunday drive, there is one area where "winging it" is a guaranteed recipe for failure: the bedroom.