Breastfeeding has a sexual element as a result of physiological factors. This can be a result of physical reasons soreness or psychological reasons conflicted about her breasts being used other than for an infant. An existing taboo implied incest and adult breastfeeding of a woman's milk or saving a life by breaking the taboo. The agency's clients could choose to drink the breast milk directly from the breast or to drink it via a breast pump. Nipple stimulation of any sort is noted in reducing the incidence of breast cancer. Nipple and breast stimulation of women are a near-universal aspect of human sexuality , though nipples in males are not as sexualized. In addition to the sensual pleasure, women have reported feeling more feminine while producing milk and continue with lactation for emotional or sensual reasons after weaning a baby. Lactation, re-lactation and induced lactation[ edit ] Erotic lactation between partners or an adult nursing relationship may develop from natural breastfeeding of a baby. In this aspect there is no erotic focus to the story. Valerius Maximus tells another story about a woman breastfeeding her mother, which is followed by the very short story of a woman breastfeeding her father. Thirteen hundred years later, Boccaccio retells the first mother-daughter story, and does not mention the father-daughter story, and the first is apparently forgotten, leading to nearly all "caritas romana" oil paintings and drawings showing only the father-daughter story. Such a relationship may form as an expression of close intimacy and mutual tenderness, and may even exist without sex. Physiology[ edit ] Breasts, and especially nipples, are highly erogenous zones , for both men and women. One prominent example is the Lactatio of Saint Bernard of Clairvaux. This particular aspect of his broader general marriage philosophy gained a lot of attention and sparked wide debate.