I think Chris Rock said it best when he said that all women have an "8 dick curve." Add 8 to the number they tell you and that is reality. I think he said you take a guys number and divide by 3.
If you are in a relationship that is a no win question. I never go there and refuse to answer the question. I will say this most women don't want to admit how many guys they have been intimate with so I never believe them. It really doesn't matter to me either as long as the number is not over 40 somewhere. I am in the third decade of my life and I understand that if you don't have several long term relationships, you have have had some fun along the way. I have.
My biggest concern is diseases that can't be cured. But I have a wonderful lady and I think this knight of the night is hanging up his armor for good. Some days it is hard becuase the world is filled with beautiful, intelligent women, but I have a special one and I am forever loyal.
Good luck to you all. Interesting thread.