The human body has many sensitive areas where sensory nerves are concentrated, and provide maximum stimulation that leads to sexual arousal and can help produce the most intense organisms. The nipples, for one, are among the most sensitive and most sexually arousing parts of the body. Whether you are having intercourse with the opposite sex or self-pleasuring yourself, the nipples provide the highest level of sexual stimulation. Since there are many other parts of the body that need to be worked on, just like the nipples, it may be difficult for a person or their sexual partner to work on