Ejaculatory contractions

“It was a severe blow to Gusteau, and the brokenhearted chef died shortly afterwards, which, according to tradition, meant the loss of another star.”

     We all know what ordinary adult male orgasm and bliss look like. Ejaculation (coming) is the forcible expulsion of fluids and spermatozoa through the urethra, while a series of involuntary pelvis contractions take place. It is controlled by parasympathetic impulses, so it's mostly involuntary process. At that point, under the control of the parasympathetic nervous system, semen is exuded. "Incredible." "Pure bliss." "Pharmakon." "The greatest invention." "It absolutely blows my mind." This is the way some men describe the feeling that accompanies ejaculation. This experience creates the most intense physical pleasure that humans are capable of.

Ejaculation exposes the body that does the writing, signature, seeking out its form. Contracting and expanding, the motion of orgasm and semen exceed the maintenance of a stable and meaningful relationship between the part and the whole of the male body, crosses the boundary between part and body. His climax usually comes with its own evidential proof, but men have been known to fake to avoid disappointing or disrespecting even himself. It denies his chance to find out what's actually needed. If he is doing it, he should simply stop; if he suspects he is doing it, he should gently challenge.

During ejaculation, the bladder neck closes and semen and its precious cargo, sperm, is sent on its way. Semen is spurted into the urethra deep inside the prostate. This partially contributes to the pleasure in male orgasm, especially after a phase of abstinence when there is a bit more semen. Pressure seems to build up like in a pressure cooker but it's a nice kind of pressure. Blood pressure can reach 30-100 systolic and 20-50 diastolic above the normal, heart rate increases to 110-180 beats per minute and respiration may be as high as 40 breaths per minute.

Ejaculation itself encompasses a number of almost simultaneous steps. Nerves running to the testes, the vas deferens, ductus deferens, the epididymes, the prostate and the seminal vesicles produce rhythmic muscular contractions. The contractions in the "bridge of sighs", as we may call the pelvic muscles between the scrotum and the anus, take center stage. Other players are the muscles of the colon and the urethra.

Rhythmic contractions are part of the male orgasm as well multi-orgasm. They are generated by the bulbospongiosus muscle under the control of a spinal reflex at the level of the spinal nerves s2-4 via the pudendal nerve. During emission and ejaculation the urethralis and bulbospongiosus muscles contract strongly, resulting in pulsation, ejection and deposition of the semen through the urethra outside. After the start of orgasm, pulses of semen begin to flow from the urethra, reach a peak discharge and then diminish in flow. The typical orgasm consists of 10 to 15 contractions.

Once the first contraction has taken place, ejaculation or multiorgasmic drawing will continue to completion as an involuntary or half-involuntary process. During orgasm, we lose control totally. It starts from our toes like a tidal wave until we ejaculate. At this stage, ejaculation or multiorgasmic drawing cannot or shouldn't be stopped. There is only one other phenomenon, namely sneezing, which is physiologically close in its summation and explosive discharge of tension. Sneezing is, however a localized event, while sexual orgasm involves the whole of the reacting body. If the multiorgasmic man would stop his drawing, he would falls into ejaculation. The rate of contractions gradually slows during the orgasm. Initial contractions occur at an average interval of 0.6-0.8 seconds with an increasing increment of 0.1 seconds per contraction. Contractions of most men proceed at regular rhythmic intervals for the duration of the orgasm. The orgasm itself lasts between 3 and 10 seconds, and in exceptional cases longer than 15 seconds. A regular, as multiorgasm is a series of approximately 8 upward rising steps, then one declining.

Ejaculation is a total-body response, not just something that happens to the crotch. Many men also experience additional irregular contractions at the conclusion of the orgasm. Muscular contractions and spasms may occur in the legs, stomach, arms and back. Somatic responses just before and during ejaculation include contraction of the abdominal muscles, followed in frequency of occurrence by spasticity below the level of spurts of semen, knee flexion, hip flexion and abduction of the thighs.

Ejaculation begins during the first or second contraction of orgasm. For most men the first spurt occurs during the second contraction. The first or second spurt is typically the largest and can contain 40 percent or more of the total ejaculate volume. After this peak the flow of each pulse diminishes. When the flow ends, the muscle contractions of the orgasm continue with no additional semen discharge.


Semen ejection
Post-ejaculatory chill
Multiorgasmic deal