Well now I more fully understand when wading out to swim in cold water you are doing okay until the cold water is felt by the testicles. Most the time I jump in well before hand as it is not as noticeable or over faster. I assume the body averages the discomfort overall.

As for the retractable penis theory. I am not sure it is a reality or I can visualise what some might do to themselves if true.:D

Perhaps. I accidentally hit my self in the nuts the other day and thought 'this really sucks and I don't know why it has to be 'this' painful.

I still think it's a design flaw. I understand that the way sperm is currently designed, this is the way it has to be. I just think nature could have designed the whole system differently.

Then I better remove this computer from my lap!!!

The pain from getting cracked in the sack/bag/nuts is nature's way of saying "Don't do that...AGAIN!"

Plain, simple and to the point.

Yet...after we got our breath back - we got up on the bike seat...again... :rolleyes: