Ok, I'm an engineering student and I was wondering if the properties of materials applied to penises as well.
For example: When stretching, just pulling on your penis, you target mainly (If not only) the part of your penis with the smallest cross section. In my case it's the base. I changed most of my normal JAI stretches to V-Stretches to ensure I'm targetting the external parts mostly and not just the base.
I don't have much knowledge on muscle growth so I based it on mechanics of materials.
For example: When stretching, just pulling on your penis, you target mainly (If not only) the part of your penis with the smallest cross section. In my case it's the base. I changed most of my normal JAI stretches to V-Stretches to ensure I'm targetting the external parts mostly and not just the base.
I don't have much knowledge on muscle growth so I based it on mechanics of materials.

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