Men's nipples also have erectile tissue and can become erect for various reasons, including stimulation from clothing, temperature changes, touching or rubbing, orgasm, and sexual excitement. This is similar to how women's breasts enlarge during arousal. However, men don't usually experience breast augmentation when their nipples are erect, unlike some female mammals such as goats or cows. It's unclear why this is the case, but it may be related to evolutionary differences between male and female anatomy. Some researchers suggest that men's nipple erection might have been important in prehistoric times when they helped them detect danger or locate sources of food or water.
Another potential reason for men's nipple erections could be evolutionary pressure to increase reproductive success. For example, having larger or more prominent nipples could indicate a man's fertility, health, or strength, making him more attractive to females. In many cultures around the world, both men and women have historically used nipples for erotic purposes. They can be stimulated manually, orally, or mechanically through devices like vibrators, suckers, or vacuum pumps. Nipple play has even been incorporated into BDSM practices like nipple torture and bondage.
Many people find men's nipple play enjoyable due to its sensitivity and versatility. It can be done alone or with partners, clothed or nude, softly or intensely, gently or roughly. Some guys use lubricant or ice cubes to enhance the experience. Others prefer toys or accessories, such as nipple clamps, tassels, clips, or rings. While there is no scientific evidence linking nipple play to improved sexual performance, some studies suggest that it can improve blood flow and increase libido.
However, not everyone enjoys men's nipple play, and it should always be consensual. Men may be hesitant to engage in this activity due to cultural taboos surrounding male sexuality or concerns about body image. But they shouldn't let these fears stop them from exploring their bodies. After all, understanding one's own anatomy and what feels good is crucial for optimal pleasure during sex. With proper communication and exploration, men's nipples can become a new source of intimacy and excitement.