Ok, final test...
Rest your penis in your open hand. Place your other hand on top and begin to slowly roll them together, gently. Start back and forth, then up and down. Finally, roll in small circles...gradually increasing the size of the circle until you can't get any bigger.
Good! The discharge of seminal fluid is also a normal reaction. In fact I need to collect a sample. But I'll want some of the fluid that is still in the prostate. I need to call my assistant back now...