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.

We spend a lot of time obsessed with the "output" of our bodies. We track our bench press numbers, our resting heart rates, and the percentages in our 401(k)s. But when it comes to the mechanics of sex, most men operate on a level of "set it and forget it." We assume that as long as the hardware is working, we understand the software.