A disorder that is rarely talked about, but is actually quite common. One has normal sex, with erection and ejaculation, but without feeling any sensation of pleasure. It is above all a matter of too much self-control. The man isn't able to switching off his rational mind and let himself go.

It is also caused by an excessive involuntary contraction of the pubococcygeal muscle, which suffocates the pleasure receptors set internally at the base of the penis (the male G spot is located between the scrotum and the anus, see illustration).