General Sexual Response

December 27, 2012

In my previous post I showed the vast variety of possible orgasmic sensations a man is able to experience. With all this variety there are certain parameters in the body that go along with sexual arousal and any peak experience!

Although I mentioned many of these co-effects within diverse texts throughout my blog I want to round-up those bodily changes, which automatically occur (in a great number of men) when we pleasure ourselves or be pleasured by a partner.

This post is something like a Male Sexual Response by the Books (compare here concerning ejaculation). I took the info from lecture notes on the Biology of Human Sexuality. The observations will be valid generally. However, as with all things sexual: it´s always the same but different!

Some of these parameters need time to develop, they may not occur in case you rush towards and thru a climax. If you allow your arousal to build up, it may be exciting to observe some of the changes in your own or in a partners body while masturbating.


OK, now picture this: you are primed to go for it, your cock just turned into a boner and you begin your journey into the realm of bliss. These physiological changes occur along with erection in the male excitement phase:

  • The urethral opening (cock mouth) may widen.
  • The scrotal skin may become congested and thick, and thus the scrotal diameter may be reduced.
  • The testes may become elevated due to contraction of the cremaster muscle in the scrotum. This would be the cremasteric reflex.
  • In about 60% of men, the nipples become more erect.
  • Areas of the skin may redden due to dilatation of the blood vessels. This sex flush occurs in about 50 to 60% of men.
  • The heart rate, blood pressure, and depth and rate of breathing begin to increase.
  • There will be an increase in tension of voluntary and involuntary muscles.

In the plateau phase the erection most certainly continues and the following changes occur:

  • There may be a slight increase in the size of the head of the penis, and its color deepens. The coronal ridge also tends to swell.
  • The urethral bulb (inside the body) may enlarge up to three times its normal size.


  • There may be a steady emission of precum from the Cowper’s glands.
  • Your balls may become even more elevated, rotate slightly, and hence come to lie closer to the groin. Also, the volume of the testes may increase by about 50% due to accumulation of fluid.
  • The prostate gland enlarges.
  • The sex flush, if present, spreads and increases in intensity.
  • There is a further increase in heart rate, blood pressure, and the depth and rate of breathing.
  • There will most likely be even more tension of voluntary and involuntary muscles.

When you are entering the orgasmic phase, given you decide to let your ejaculatory climax happen after you built a certain level of arousal, the following will occur:

  • There will be a loss of voluntary control of muscles and a great release of neuromuscular tension.
  • There will be clutching or clawing motions of the hands and feet.
  • When the ejaculatory center in the spinal cord is activated, it sends sympathetic neural stimulation to the bulbocavernosus muscle at the base of the penis. Emission will be triggered, followed by the ejaculatory reflex (with ongoing stimulation).


  • The balls are at their maximal elevation.
  • The heart rate peaks as high as 180 beats per minute (from a resting rate of about 70).
  • The blood pressure peaks at about 200 over 110, from a resting pressure of about 130 over 70. The respiratory rate peaks at about 41 breaths a minute, from a resting rate of about 12 per minute.
  • The sex flush, if present, peaks in intensity and distribution.

In this phase the brain (pituitary gland and hypothalamus) produces and releases endorphins which chemically resemble opiates and generate a strong feeling of pleasure and well-being. The longer you remain in a phase of intense arousal (edging), the stronger may be the effect of this naturally produced chemical, resulting in a opiate-like state of sexual euphoria (I like to call bliss). That´s why (deep) edgers enter an altered state of mind and get „drunk on cock“!

Kind of unfortunately the hormone prolactin is released into the bloodstream after climax, it plays a key part in MRP (please read more about it here!). This is another good reason to practise edging. Mind you, MMO exists as well!

Whatever route to bliss you chose, sexual engagement is being alive in the truest sense of meaning. Enjoy life as much and often as you can!

One Response to “General Sexual Response”

  1. Anonymous Says:

    Wow, what a powerful and informative story. I hope many men read this and enjoy it.

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