Really jam it in there as far as you can.
European Urology 42 5
At some point, you may have wondered:
Research findings on penis size from MNT news.
The penis contains three separate chambers.
What importance do women attribute to the size of the penis?
The study also found that the size of a man's erect penis was not correlated with the size of his flaccid penis.
To get a precise measurement, do it when you have an erection.
Penile length in the flaccid and erect states:
Erect lengths average from 12 to 16 centimeters 4.
It's all about effectiveness and protection as well.
Most men's penises are somewhere around 9cm 3.
Does your condom really fit you?
The 3D-printed shafts were in blue plastic so as not to suggest any particular race that might prejudice the women's ideas of average size.