During which stage of sexual response does the lower one-third of the vagina constrict around the penis due to the engorgement of the vestibular bulbs?
A) Arousal
B) Plateau
C) Orgasm
D) Resolution

Question

Quizplus · Accepted Answer

During the plateau stage, the uterus assumes a more upright position instead of being tipped over the urinary bladder. The lower one-third of the vagina constricts around the penis due to the engorgement of the vestibular bulbs. This constriction along with the vaginal rugae stimulates the penis. The erectile tissue of the clitoris also becomes engorged with blood. Pelvic thrusting during intercourse pulls her prepuce (formed by the labia minora) back and forth over the clitoris further stimulating it.

During Which Stage of Sexual Response Does the Lower One-Third