The suprasternal notch can be highlighted subtly by wearing pendants or necklaces which rest in that area, to draw focus to a part of the body that can be considered an erotic or sensual zone. In this way, exhibiting the notch is more understated in exhibiting sensuality than the usual areas (legs, chest, hips etc.) and is considered an erogenous zone.

The suprasternal notch features in The English Patient as an erogenous zone.

The suprasternal notch (incisura jugularis sternalis), also known as the jugular notch, is part of human anatomy. It is the large, visible dip where the clavicles joins the sternum.
Evaluative tests using the suprasternal notch
Intrathoracic pressure is measured by using a transducer held in such a way over the body that an actuator engages the soft tissue that is located above the suprasternal notch.

Arcot J. Chandrasekhar, MD, FRCP, FACP, FCCP of Loyola University, Chicago, is the author of an evaluative test for the aorta using the suprasternal notch. The test can help to recgonise the following conditions:

Aneurysm
Dissecting aneurysm
Atherosclerosis
Hypertension
To carry out this test it is necessary to place an index finger or middle finger on the notch and palpate it. In a young normal person there should be no palpable pulse. Older patients will have a noticeable pulse. A prominent pulse could indicate aging,uncoiled aorta,arch aneurysm or hyperdynamic circulati ...more

Place to place pedants....!!

The suprasternal notch (incisura jugularis sternalis), also known as the jugular notch, is part of human anatomy. It is the large, visible dip where the clavicles joins the sternum.

The suprasternal notch is found at the superior border of the manubrium of the sternum, between the clavicular notches.

Your boyfriend's testicles.