Contrary to popular belief, you CAN build the area just below the nipple, but it takes an extreme amount of focus. You need to do bench presses, with the bar coming down to your neck, and when you do it, you need a friend to rub ice cubes on your nipples. This stimulates the tissues in the area, causing the nipples to become erect. When this occurs, the musculatur tightens up around there and bears the load of the work. You need to do this for at least five sets of thirty six times a week, and at least one day has to be a Monday. It's universal bench/curl day for a reason - the planets align a certain way once every week that causes the muscles to respond beautifully to tension.
This is just one of the many topics covered in my new book:
"Lifting For The Ignorant Fucktard Who Can't Understand Basic Physiology"