/sci/ - Science & Math

You know that both semen and penal tissue are made of protein. All proteins require amino acids.
There is a fixed amount of amino acid allocated to your penis. Consequently, amino acid may be used to in growth of your penis or in building semen.

Body seeks to maintain constant volume of semen in your scortum. So if you masturbate and remove semen, amino acid that could have been used in growing your penis is used in building semen. This means opportunity to grow your penis is forgone.

As this is taken to extreme, proteins that constitute your penis is broken down. Amino acids released will be used to build semen. Your penis thus grows smaller with masturbation.