Here's how to inoculate ourselves against negative ones. Verified by Psychology Today. All About Sex. Many women complain that their vaginas are "too tight" or "too loose," and many men raise the issue about lovers.
Female breasts and male penises come in various sizes, so do vaginas. Just as breasts are supposed to be roundish, the nipples must respond to stimulation and penises are expected to expand and contract, vaginas too are supposed to tighten and loosen up depending on various factors, most importantly hormones. While physical touch and mental stimulation seem to be the immediate stimuli, it is actually hormones, blood circulation and the elasticity of muscles that control the vaginal loosening or tightening.