The expressions of these captive milkers are more exaggerated suggesting that they are not experienced users, possibly even straight since their minder is a female nurse. If you are experienced with male genitals, you will able to understand when epididymides start to enlarge. It is stored in the epididymides 1 where it undergo maturation processes. It requires time to be full again. Sperm is forced in the vasa deferentia, and peristaltic contractions of the vasa help to deliver a part of the sperm up to the ampullae.
Doing so, he obtains three things:
The subjects provide an interesting array of facial expressions ranging from resignation and bewilderment to orgasmic excitement at the moment of delivery. In the main page, search for Matt. In ancient times, castration has been performed - mostly on slaves - for contraceptive purposes and to obtain boys who were sexual toys: Only a part, indeed; the rest will be delivered by the contraction of the internal glands during the emission phase - or equally by an artificial rhythmical pressure applied to the prostate gland but this is another story.
Epididymides are being large.