My dad was a porn star too - John Holmes. So I've been endowed with a 12 inch penis - bigger than you and your dad. Its a third leg basically.
OK, just having some fun :wink: I can't believe most of you took this guy's post so seriously!
I guess on the serious note, the size of your penis is almost 100% determined by genetics. However, you can't look at your dad and necessarily expect the same size penis as your dad - it may be bigger or smaller than your dad's. Reason? 50% of your genes come from your mom of course. Although your mom doesn't have a penis, her genes carry genetic code that would determine what size penis a male offspring would have. And of course there are recessive genes that can affect penis size as well, just as they can affect height and many other things.
So putting recessive genes aside for the moment, you have at most a 50% chance of having the same size penis as your dad, and at least a 50% chance you will have a penis that is smaller or larger than your dad.
The most accurate way to get an idea what size penis you will have is to evaluate the penis size of the male members of your mom's direct family, such as your mom's brother (your blood related uncle on your mom's side), and average that size with your dad's size. That size is the most likely size of your penis.
My mom had 3 sisters, and no brothers, so couldn't evaluate that. Not that I would ever see my uncle's penis anyway! I remember seeing my dad's penis when soft when I was like 5 years old. That was a long time ago, but from what I can recall, I think my dad's penis was thicker than mine is, but mine is perhaps a bit longer when soft. So I guess my male ancestors on my mom's side of the family had long pencil dicks LOL. :laughing:
