According to the Centers for Disease Control and Prevention (CDC), certain nipple-related changes can be warning symptoms of breast cancer: Morphis M. (2014). SwaddlingEngland: How Jane Sharp’s midwives books shaped the body of early modernreproductive tradition. Lawrence RA, Lawrence RM. Anatomy of the Breast. In Breastfeeding: A Guide for the Medical Profession (Eighth ed., pp. 34-55).

Certain skin conditions, like eczema, dermatitis, or psoriasis can cause nipple pain while nursing. Thanaboonyawat I, et al. (2013). Pilot study of normal development of nipples during pregnancy.DOI:If you and your partner would like to, you could also incorporate sex toys such as nipple clamps and vibrators, and experiment with different warming lubes, oils and lotions. Bondage is also a great addition to this kind of play, suggests GOTN. https://www.plannedparenthood.org/learn/sex-pleasure-and-sexual-dysfunction/sex-and-pleasure/orgasms

As with any other sexual act, communication is key. Let a partner know about preferences for sensations that are softer or more intense, such as from pinching, biting, or the use of toys. Maintaining communication throughout can help ensure that everyone is enjoying the experience. Stimulate multiple body parts National Institute of Child Health and Development: “Sudden Infant Death Syndrome,” “What are the benefits of breastfeeding?” “What are the recommendations for breastfeeding?”Kulski JK, et al. (1981). Composition of breast fluid of a man withgalactorrhea and hyperprolactinaemia. DOI: https://www.earlymodernstudiesjournal.org/review_articles/swaddling-england-jane-sharps-midwives-book-shaped-body-early-modern-reproductive-tradition/