I must try a penis squashing by a person. I had several Polynesian sit on my belly and flatten it to the rib cage. It is the sort of weight one should experience standing on my penis.

I put my penis on a chair with a thin 2 cm cushion and then a strong and thick plexiglass on top. Then the lady stepped on the plexiglass. It seemed as if the cock was going to explode. I can add that she is no lightweight, but almost 180 cm tall and 100 kg ;-)