What you mention is a complete myth. There is no correlation
between the size of the labia or the clitoris and the muscle tone or
basic size of the vagina. There is a stronger correlation
between the overall size of the woman and vaginal size, however even
THIS is completely dictated by genetics. Naturally, the vagina
loses some tone with child birth and age, however, again, this is a
totally idividualized situation.
Dr. James