A few questions: Can guys STOP an erection? Can they stop ejaculation?.....?

Question

And must they ejaculate for the erection to go away?

Answer 1

You asked two questions and the answers to your both are: NO.The reason is very simple to understand.When the erection process start the process stop in a matter of time.In other words is controllable.Ejaculation can't be stooped and can't be controlled.The reason is the mechanism is more complex.When that take place,stop when is done.In other words, when the gun is empty.