As much as there is one between your brain size and a pea.
This made me laugh!!! But yea nah. I don't think so! Vaginas are amazing flesh caves that can expand enough to shoot out babies lol pretty sure my mouth can't do that!
Is there any difference?
Inversely proportional? Kidding.
Yes im sure their is.
There is.. kind of like how a man's pen.i.s size is similar to his brain size..