Many smaller cocked white males like to inform us women, and average sized males, and even larger cocked Black Men, that the vagina is only so deep and can only handle so much cock. Well, in a sense that is true, to an extent. The full truth is that the depth from the vaginal opening to the tip of the cervix is only 3 to 4 inches, when the woman is not sexually aroused.
Other women may have a vaginal depth of five to seven inches. Regardless, during arousal, ******* flows to the genital area, and sexual excitement causes the upper two-thirds of the vagina to lengthen by forsing the cervix and uterus to ascend. The vagina also lubricates to help ease penetration. Think of the vaginal canal as if it were a balloon that is not filled with any air. The walls, which have the potential to expand and elongate, gently touch one another. When something is placed inside, they mold around the width and accommodate the length of a penis, tampon, finger(s), or sex toy.
Sometimes during penetration, a penis or other object inserted in a vagina does hit the cervix. This is an indication that the woman is not psychologically or physiologically aroused enough; when a woman is aroused, her vagina will elongate and her cervix, the neck of the uterus, will lift up and move out of the way allowing a much larger cock to penetrate the vagina completely, regardless of thickness or length. This can result in a woman experiencing a uterine orgasm.
A good way to look at this is to consider that when a man can't achieve an erection, it is usually because he is not attracted to his partner. The same applies to women who do not lubricate or orgasm with their partner. Another thing to remember is . . . just as a man’s penis might feel bigger or smaller to his partner. Often this change in perception is due to a difference in lubrication. And lubrication occurs when a woman is aroused. The more a woman is aroused, the more lubricated her vagina becomes. And the more lubricated a woman's vagina is, the bigger the cock she can take.
This being said . . . Any woman, if she is sufficiently aroused, can accommodate any size cock.