<P> The neck, clavicle area and the back of the neck are very sensitive in both males and females, which can be stimulated by licking, kissing or light caressing . Some people also like being bitten gently in these areas, often to the point that a "hickey", or "love - bite" is formed . </P> <P> Some people find whispering or breathing softly in the ear to be pleasurable and relaxing, as well as licking, biting, caressing and / or kissing it especially the area of and behind the earlobe . </P> <P> The areola and nipple contain Golgi - Mazzoni, Vater - Pacini and genital corpuscles . No Meissner's corpuscles and few organized nerve endings are present . There are concentrations of nerve tissue in the area of ducts and masses of smooth muscle . The hair surrounding the areola adds additional sensory tissue . The mass of smooth muscle and glandular - duct tissue in the nipple and areola block the development of normal dermal nerve networks which are present in other erogenous regions and the development of special end organs . The entire breast has a network of nerve endings, and it has the same number of nerve endings no matter how large the breast is, so that larger breasts may need more stimulation than smaller ones . </P> <P> Intense nipple stimulation may result in a surge in the production of oxytocin and prolactin which could have a significant effect on the individual's genitals, even to the point that some people of both sexes can achieve orgasm through nipple stimulation alone . Having the chest, breasts and nipples stimulated manually (hands), digitally (fingers, toes) and / or orally (mouth, lips, teeth, tongue) is a pleasurable experience for many people of both sexes . </P>

When does the entire body become sensitive to touch