DETROIT Posted August 13 Report Share Posted August 13 Interesting article.....Penis is a competitive beastA marvel of evolutionary design? Scientists believe the shape of the penis may have evolved to help men remove the semen of love rivals during sex. Tests led a team of US researchers, headed by Professor Gordon Gallup, to conclude that the penis acts as a "semen displacement device" and its shape has evolved in part to displace another man's semen. The team from the State University of New York believe the thrust of the penis during sex may help to clear a woman's reproductive system of a previous lover's semen. They tested their theory in experiments using latex phalluses, an artificial vagina and a mixture of starch and water. The human penis may enable males to substitute their semen for the semen of their competitors Professor Gordon Gallup New Scientist magazine reports they found the coronal ridge of the penis, found where the glans, or head, meets the shaft, could scoop out more than 90% of the cornstarch mixture with just one thrust. A phallus with no coronal ridge only managed to remove 35%. They found the depth of thrusting was also important. A three-quarter thrust was found to clear out less than 40% of the viscous mixture. Sex survey They also say they have evidence, from surveys of students, to indicate that sex tends to be more energetic if the women is suspected of cheating, or if the couple has been apart - suggesting a sub-conscious desire on the part of the man to rid his partner of any trace of another's semen. Lead researcher Professor Gordon Gallup told BBC News Online: "We theorize that as a consequence of competition for paternity, human males evolved uniquely configured penises that function to displace semen from the female vagina left by other males. "Thus, the human penis may enable males to substitute their semen for the semen of their competitors. "Not only did we obtain data derived from artificial genital models that were consistent with this hypothesis, but we also found that under conditions that raise the threat of female infidelity, college students reported changes in sexual behavior that would serve to purge the vagina of foreign semen prior to ejaculation." the rest is herehttp://news.bbc.co.uk/2/hi/health/3128753.stm Quote Link to comment Share on other sites More sharing options...
sassa Posted August 13 Report Share Posted August 13 oh my... :laugh: Quote Link to comment Share on other sites More sharing options...
trancerxn112 Posted August 13 Report Share Posted August 13 i actually heard this before when i was watching a special the penis can create up to 4 or 5 times as much sperm if you've been away from your lover or if you think she has cheated... which would explain for the more powerful orgasms. Quote Link to comment Share on other sites More sharing options...
i3itch Posted August 13 Report Share Posted August 13 What's an orgasm?! Quote Link to comment Share on other sites More sharing options...
wideskies Posted August 13 Report Share Posted August 13 so wait... if you've accidentally had unprotected sex, does that mean that you should have sex AGAIN so as to "scoop out" the sperm and give yourself a better chance of not getting pregnant!? Quote Link to comment Share on other sites More sharing options...
ou812 Posted August 13 Report Share Posted August 13 Originally posted by fwilso01 Lucky you, get to have some other guys splooge all over the head of your pee-pee Quote Link to comment Share on other sites More sharing options...
ladyshady Posted August 13 Report Share Posted August 13 Best Titled Thread Quote Link to comment Share on other sites More sharing options...
daveespa Posted August 13 Report Share Posted August 13 :laugh: Quote Link to comment Share on other sites More sharing options...
daveespa Posted August 13 Report Share Posted August 13 Originally posted by i3itch What's an orgasm?! come here and ill show ya Quote Link to comment Share on other sites More sharing options...
i3itch Posted August 13 Report Share Posted August 13 Originally posted by daveespa .....come here and ill show ya How do you plan on showing me when your first response to my post was Quote Link to comment Share on other sites More sharing options...
daveespa Posted August 13 Report Share Posted August 13 Originally posted by i3itch How do you plan on showing me when your first response to my post was ok so then forget it!! Quote Link to comment Share on other sites More sharing options...
joediesel Posted August 13 Report Share Posted August 13 :laugh: Quote Link to comment Share on other sites More sharing options...
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