Originally Posted by Amerikanisch
Like most of you, I watch a bit of porn.
I have wondered why most male porn stars seem to have dicks 9 shades darker than the rest of them.
Well, it is possible that I have stumbled upon the answer. I was reading on one of these self-help life improvement sites and the host said that his dick is so dark that his girlfriends kid him about his being black. He claims that it’s not genetic. He says it’s from jelqing.
Has anyone else heard of this theory?
Repetitive injury can cause discoloration, an increase or the loss of various skin pigments.
Many men who do not do PE at all have darker genital skin, it appears during puberty and is a well known hallmark of puberty. I haven’t looked in detail as to why this is the case, but there are significant biochemical (enzyme expression) differences, and presumably genetic expression differences, in genital skin that might be related.
People with metabolic disease can acquire darker skin in regions such as under the arms, the genitals, between folds of skin. It’s called acanthosis nigricans. Acanthosis nigricans - Wikipedia
Saliva from oral sex may also cause skin discoloration I’ve read. In people that drool in their sleep or lick their lips often you can see discoloration around their mouth where they have repetitive contact with saliva.
Starting: 7"bplx5.2" 2017 (shrunk from disuse)(originally 8"bplx4.5", gained to 9"bplx6")
Current: 9.0"bplx6.125" 2020
Goal: 11.5"bplx7" 2021.