Any size as long as it doesn't hurt. There is no average. It's up to her comfort which is individual.
There is no specified length that a penis should be in order to fit a woman. In fact, a woman's vagina adapts to accommodate the size of a man's penis.
if you were a girl, would you want that for yourself?
It is very unlikely that a penis that long would fit entirely within a woman. The average depth of a vagina is 5 to 6 inches, but it can stretch slightly.
125 pounds according to ALVANON (global size and fit expert).
Yes the vagina is a complex design. if you can stuff a fist im pretty sure a 9inch penis will fit, depending on the woman of course.
3
First, get it wet and slowly ( don't hurt her) get it inside instead of shoving your penis hard to get an orgasm, and then the woman's hole will probably get wider for your size, well in time it will.
The average woman wears a 36C, but at least 80% of women wear bras that don't fit them so the true average size should be 34DD. Cup sizes are relative to the band size, so the average cup size should be the same for each band size (ie DD cup.)
depends... how big is a man sized foot?
It's designed to. The vagina stretches quite a bit. Women have babies all the time so the average penis isn't a problem.
A woman's bra size 40dd will fit a chest size of between 35 and 37 inches. Some are able to stretch or adjust outside this range but this is an average.
woman's vaginal space differs from woman to woman, based on genetics, who they are having sex with and how many times they have sex. most woman will say size matters, but in what way? if her vagina is tight, why do you have to be super big? if she has a loose box, than yes size does matter - to the man, who should look for another woman with a tighter box. the way computer cables connect together there is a perfect fit, humans are in no way perfectly made for each other but similarly a penis and vagina must meet at similar interconnecting size-fit, you are only small if she is loose and only big if she is tight, based on what she thinks. but who cares what woman think about penis size anyway, be confident in what you are and what you have, find a tight box for your small thing or find a loose one for your massive one. imagine if men judged woman based on the looseness of their box? you wouldn't even be asking this question!