>>18
Wake up. Seriously, I hate those dreams.
>>16
It depends on the girl. One I was with could squeeze one finger real tight, or this other girl I know quite bluntly told me one day that she can fit a relatively large shampoo bottle in her. Suffices to say she went on to relate that vaginal sex doesn't do much for her.
Once they have a kid it tends to be more loose, but until then men can run into problems with hurting the girl because it's "too large." Usually though that just means that she isn't as relaxed or turned on. That'll totally affect how loose she is.
Muscle control, relaxation, horniness, those'll all effect how tight/loose she is. Case in point the two women I'm close to, who do you think was the one with the kid? The tight one. Needless to say it was quite a surprise for me to find this out firsthand.