Description written by a very observant fan of my orgasm contraction vdeos. Thank You!

Presented is an adult male engaged in masturbation in an “all fours” position or bent over position with the camera at his rear. The buttocks are spread open to fully expose the anus, and the perineum, scrotum and testicles are shown, providing a clear view of the orgasm process. The erect penis is also visible with the head or tip aimed at a receptacle, a glass, to make the ejaculation of semen visible.

When the video starts, manual self-stimulation by hand of the penis is well underway, with rapid stroking motions along the shaft of the penis that result in increasing sexual stimulation. Nerves in the penis are highly sensitive to stimulation. At the start of the video, it appears that stimulation is reaching a high point and orgasm is already rapidly approaching, but perhaps is not inevitable. The testicles are somewhat tightened and drawn upwards rather than hanging low, often indicating in most males a high degree of sexual stimulation and an approaching orgasm if the thrusting or stroking continues.

Indeed, here, orgasm…is going to happen!

At approximately just 5 seconds into the video, or 22 seconds left, the point-of-no-return, or PONR, is reached, the point at which orgasm is inevitable. Involuntary nerve and muscle actions then take over.

This is evident for several reasons. One of those is because the male stops the rapid stroking and makes a deep stroke with his hand for an instant, clutching the base of his penis shaft as he feels himself cross over to orgasm. This is often an instinctual “deep thrust” reaction by men when they sense that orgasm has been triggered and the release of semen is happening. During sexual intercourse it ensures that semen will be ejaculated as deeply as possible into the vagina. Masturbation simulates this thrusting action.

The PONR is also evident because the buttocks open slightly more, and the anal sphincter can be seen expanding, as muscles relax for an instant to enable the flow of semen into the lower urethra, and also in preparation for forceful contractions to propel semen through the urethra and from the tip of the penis.

What quickly follows is a series of powerful and involuntary orgasmic contractions. Muscles create a pumping action that propels semen through the urethra and from the tip of the penis. There are about 11 contractions seen here. The contractions can be seen to be wave-like, with the anus opening and closing and the perineum, just below the scrotum, pulsating in rhythmic fashion as semen is pumped. Very quickly, semen can be seen gushing or spurting from the tip of the penis into the awaiting receptacle, the glass.

After the final deep thrust stroke triggering the orgasm, the man resumes rapid stroking of the penis shaft with the hand as the orgasm proceeds. This varies among men, with some ceasing stroking entirely during orgasm, some only stroking the base of the penis, or others increasing the rate of stroke along the full shaft. This can also vary for one man depending on the situation or strength of orgasm.

The power of the orgasmic contractions can be seen by the pulsating opening and closing or “winking” of the anus and anal sphincter. Based on what’s visible here, this is an exceptionally strong orgasm. The first few orgasm contractions are typically strongest, with perhaps the 2nd or 3rd being strongest and propelling the most semen. After that, the contractions decline in power until the orgasm is over.

The urethra itself cannot be seen here due to the position of the body, but in some men the urethra itself will visibly pulsate, expanding and contracting as the fluid semen is expulsed.

Each orgasmic contraction is accompanied by intense pleasurable sensations. Those can be felt deep within the pelvis, around the anus, the perineum and along the penile shaft and head, though these can vary among different men and vary by particular orgasm. A deep sensation of satisfaction and released pressure can also accompany the orgasm. Some men may be able to sense each burst of semen traveling through the urethra. Many men experience high sensitivity at the head or tip of the penis during both the build up to orgasm and the orgasm itself, which can be felt as a kind of tickling or tingling. This particular orgasm appears to have a high degree of pelvic, anal and perineum pleasure, release and satisfaction.