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/sci/ - Science & Math


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4333345 No.4333345 [Reply] [Original]

So tell me /sci/ why is it that my penis is so much darker than the rest of my body?
Pic not related because if i showed you a picture of it i'd probably get banned.

>> No.4334449
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4334449

I've actually wondered this too. Bump for knowledge.

>> No.4334465 [DELETED] 

Syphilis

>> No.4334466

A shit load of protein in a small part of the body?

>> No.4334470

It's because your daddy was dark. Hurredity.

>> No.4334520

The same reason bruises are dark,

lots of blood.

>> No.4334866
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4334866

>>4334520
>>4334470
>>4334466

>> No.4334881

OP: engineer who just fucked his boyfriend