If a person is willing to throw his body will undergo a series of events.
He will see an increase in the size of the head of the penis and the head can also be changed to purple. His iron Coopers secrete "pre-cum" fluid which encircles his urethra. His testicles will move in the direction of the body, and increase in size. In addition, it can feel a flush of the body, muscle tension, increased heart rate and elevated blood pressure.
Just before ejaculation, he will feel the contraction in its vas deferens, seminal vesicles and prostate gland, causing seminal fluid (ejaculate) gather at the base of his cock in the pool. It will feel "tickling" sensation type. If you are ready to ejaculate, he will feel "pulsating" around his urethra.
ejaculate leaves your penis is about the same speed of movement as the bus, about 28 miles per hour. But can reach speeds of 43 miles per hour, depending on how long since the last time he came. (It's all fun and games until someone loses an eye !!)  Once he threw his scrotum and testicles return to normal size. He will have a general feeling of relaxation and experience a refractory period (where it is not physically able to get another erection). This period may be from several minutes to much longer, depending on the age of
Gender Council. If it is not at the point of no return, you can stop him from ejaculating strongly (but very gently) squeezing the tip of the penis.