But if the experience was not pleasurable and satisfying, it might not lead to another sexual experience. Masters and Johnson described the two-stage detumescence of the penis: In the first stage, the penis decreases from its erect state to about 50 percent larger than its flaccid state.
Knowing how your body responds during each phase of the cycle can enhance your relationship and help you pinpoint the cause of sexual dysfunction. The duration of the refractory period varies among men and changes with age. General characteristics of this phase include the following:.
Main article: Refractory period sex. American Journal of Psychiatry2 Both testicles become drawn upward toward the perineumnotably in circumcised males where less skin is available to accommodate the erection.
This phase is the climax of the sexual response cycle. Individuals may experience some, all, or none of these changes. For example, Roy Levin identified a few areas of the model that had not been touched upon. Tension in the muscles increases. Main article: Sexual dysfunction.
Women may breathe more quickly or experience little shivers. For instance, a key resource used by U. The Journal of Sexual Medicine 5, — However, women show category non-specificity: Their genitals show arousal to both preferred and non-preferred genders.