Video Transcription
Using both hands alternately, work your way from the tip downwards as shown here.
Modify the intensity of the pressure so that it's enjoyable for you.
Hold the penis between thumb and forefinger, apply gentle pressure and run your fingers from top to base.
changing from one hand to the other several times as shown here.
If you really work on this, you can achieve injaculation, the retaining of seminal discharge.