Dr. Christopher Ryan Interview
The Mating Grounds Podcast
00:00
The Human Penus Is the Thinest of Any Primates
The human penus is the thickest of any primates, compared to overall body size. Repeated thrusting action creates a vacuum in the woman's vaginal tract that pulls pre existing sperm back from her ovum. Women often complain that when they have sex with a circumcised guy, where that the flared head is more accentuated because there's not the loose skin to go back over. It dries them out because it's pulling all the moisture out of her pussy.
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