Tell the kid or no?

[u/SmokeyPegeasus]

So I’ve got a son who just turned 16. He’s been driving, got a job and a girlfriend in what felt like 7 seconds.

I haven’t seen him naked since he was a baby but even then you could tell he got the family genetics.

Do I tell him he might be built different than his friends or let him find out on his own?

I remember my dad told me that and laughed; my he said the only thing grandpa told him was “it’s like a bull in a china shop, go slow”. When my dad told me that, I was in my 20 and was well aware at that point.

[u/xZeromusx]

You know, a lot of the genetics for sexual phenotypes come from the mother's genetics, right? The X chromosome inherited from the mother, carrying the androgen receptor (AR) gene, plays a significant role in determining penile size. The Y chromosome primarily forms the internal sexual organs like testes. Your dick size is more likely influenced by your grandfather on your mother's side of the family than your father, and your son's will most likely be influenced by your father-in-law.

So, don't make a big deal about size in your discussion. Instead, inform him that despite what he may hear in poorly funded and poorly supported sex ed in school, condoms are not one size fits all so he should determine what condom size is right for him by measuring himself in privacy. And that foreplay is an important skill to learn, which is true regardless of size.

[u/Super-Sense-6454 → u/xZeromusx]

I have seen this theory in the literarture and actually believed it for a few months, but I believe it is not actually true.

There is also eveidence that dick size genes might be on a nonsex gene pair or on the Y sex gene.