Views Read View source View history. They are generated by the bulbospongiosus and pubococcygeus muscles  under the control of a spinal reflex at the level of the spinal nerves S2—4 via the pudendal nerve. Login or sign up to add videos to your collections. Michael Conn 22 October Such men usually do it by tensing and flexing their abdominal and buttocks muscles along with vigorous fantasising.
Archives of Sexual Behavior.
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Oh how I wish I could have two loads like that pumed in me right now! Cancer Council Victoria website. Help make pornstars easier to find on YouPorn by telling us who is in this video. Alfred Kinsey measured the distance of ejaculation, in "some hundreds" of men. Anderson; Ahmed Tibary; Robert J. Journal of Sexual Medicine.