I came across this amusing report via Jason Soon.
It might sound unlikely, but men looking at explicit pictures of two naked men with a naked woman have been shown to produce higher-quality sperm than those watching pornographic images featuring women only.
Although this seems to go against common perceptions about male sexual preferences, it is consistent with the theory of sperm competition, says study leader Leigh Simmons of the University of Western Australia, Perth. This states that males (of many species, including humans) should produce better sperm when faced with a female who has other mates, because this stimulates them to boost their chance of procreation.
Is there any field in which competition can't goad participants on to new heights? Perhaps this explains the otherwise mysterious appeal of a certain peculiarly Japanese contribution to pornography ...
Jesus, Abiola. You come up with the strangest things :)
Posted by: Won Joon Choe | June 21, 2005 at 09:49 PM
a friend of tells me that DP is ubiquitous in porn now.
Posted by: razib | June 22, 2005 at 07:08 AM
"a friend", eh?
Posted by: Frank McGahon | June 22, 2005 at 10:20 AM