Anatomy of the Penis, Mechanics of IntercourseUploader: Shalmaran 4 years ago Subscribe 1
The perception of vaginal tightness during sex is primarily related to the pelvic floor muscles, which are present around the base of the vagina and not actually how wide the vaginal canal is. The ridged bands are situated about halfway down the shaft, when the foreskin is retracted fully. For a further look at this anatomy, including photographs, visit Circumstitions Hugh Young. The only source of stimulation is the glans rubbing against the wall of the vagina. When the penis is not erect, it tightens to narrow the foreskin opening.