In heterosexdual relations there are going to be females with small vaginal canals just as there are going to be males with small penises. The opposite is true as well. A "small" woman is going to have some trouble accomodating a "large" man. The bad combination is the large woman and the "small" man because neither one has a great time.

Most dating is hit and miss or like a roulette wheel. Usually the meeting is two who are average and everything works.

It was once said that most women cannot easily take anything over 8 inches in length. Again I believe that to be something again based on averages. All one can do is try and find the ....ahem...."perfect" mate!