The innermost part of the vagina where this busty girl shows an abnormal reaction, around the cervix.Grabbing the rampaging boobs and repeating the piston over and over again, the uterine ostium that became fully open with a face that should not be shown to others is irresistibly irresistible and finishes off at once with an outrageous ejaculation.At that time she relaxed her body and was no longer the Aimi-chan you know.