Those kinky penile plethysmograph fetishists at Northwestern University just can’t get enough cock.

Dr JM Bailey and his chums have been strapping a fresh batch of penises into their sex-lie detector machines again, showing them porn and feverishly twiddling their knobs. But this time – hold the front page! – their ‘scientific’ findings very kindly allow men who like cock and pussy to actually exist.

Which might not in the real world seem such a major finding – but it represents a major flip flop for this outfit. Six years ago, using the same cranky equipment, they claimed they had demonstrated that male bisexuality didn’t exist. That their data suggested that bisexual men were in fact ‘really’ homosexual.

A ‘finding’ that was trumpeted around the world. Because of course it told people, straight and gay, what they wanted to hear, and what common sense tells them to be the case. Gays have always wanted bisexual men to join ‘their’ team. While straights don’t want the dirty dogs on theirs. However liberal they might be. Especially in the devoutly monosexual USA. ‘Straight, Gay or Lying?’ was the infamous, shameful headline in the New York Times which greeted the 2005 paper from Bailey ‘proving’ male bisexuality doesn’t exist.

Just as all women are ‘really bisexual’, no men really are. Since virility is directly related to a man’s ability to perform compulsory heterosexuality, any man who is aroused by cock can’t be virile. He is, by definition, emasculated. Impotent. A fag. Or ‘gay’ if you’re liberal. No wonder the vast majority of men attracted to other men don’t advertise the fact.

All this despite of course the way hardcore ‘straight’ porn watched by most men when they’re not strapped to a plethysmograph in Northwestern University features pussies AND cock. Usually lots and lots of ENORMOUS cocks – and a sorely-tested pussy or two. By way of contrast, I’d point out that I’ve never seen a single pussy in gay porn. (Except once in the art-house porn of Bruce La Bruce – who was anyway only doing it to wind up The Gays.)

In my own private ‘researches’ I’ve come across – and over – scores of straight/bi-curious/bisexual men who want to re-enact the straight hardcore porn they’ve been watching. With them as the ‘greedy slut’. They tell me they decided that it looked like fun. And besides, they thought they could do a better job. (Probably correctly, since the ‘slut’ fantasy of straight porn is of course a largely male construction.)

But Bailey’s yen to strap penises into sex-lie detectors is much more respectable than my private perving. The jaw-droppingly dreadful recent C4 documentary series The Sex Researchers presented Bailey as some kind of sexual seer, rather than the highly controversial and frankly rather dodgy figure he is. Worse, it gave his favourite sex toy, the penile plethysmograph, a starring role in the first and last episode, presenting a contraption which is probably even less reliable than a non-kinky ordinary lie detector, as a pure, objective and accurate way of measuring and studying sexuality, in contrast to all that subjective tosh and ‘dirty data’ that Kinsey and Freud came out with. By listening to people.

Likewise, the series began and ended with the ludicrous but apparently highly reassuring assertion, based on this objective and scientific research, that most women are bisexual and hardly any men are.

In keeping with this ‘Loaded’ ideology – and it really is an ideology, make no mistake – the entire series on sex research, lavishly illustrated with ‘ironic’ vintage soft porn footage of naked ladies playing with themselves and jiggling their boobies, the penis and the male body was almost completely absent – except when undergoing gruesome ‘corrective surgery’ or being subjected to ‘testing’ in the plethysmograph. We were repeatedly told that female sexuality is ‘complicated’ but men’s sexuality is… mechanical.

The denial of male bisexuality and bi-curiousness has its roots in a sexism that keeps men in their place even more than women.

‘Sex’ for the C4 documentary makers meant (a very particular kind of) ‘female body’. It was as if the documentary had been directed by Benny Hill, but without the laughs. The commercial breaks, featuring tarty half-naked men selling breakfast cereals and moisturiser were much more enlightened and realistic than anything in this series based on an already highly dated heteronormativity (which incidentally is the subject of an official complaint to Channel 4 about its inaccurate and misleading nature by several of the sex researchers interviewed for it).

So why the turnaround by Bailey? Well, it seems the loud and angry protests from bisexual organisations that Bailey’s 2005 findings understandably aroused has taken its toll -– and indeed one bisexual organisation even funded this recent research.

They got the result they wanted, but I fear they’re wasting their money and merely encouraging more bad science. Some of course will hold these findings up as proof that this Heath Robinson kind of bio-mechanical sex research can correct itself. But they would have to be true believers to see it that way. All that has been proven is that measuring penile blood-flow in a laboratory is a highly reductive and highly abnormal measure of male sexuality. Men are not just penises. They are also prostate glands. Perineums. Earlobes. Inner thighs. Brains. Nipples.

It also shows that you get the result you’re looking for. In 2005 Bailey wanted to prove that male bisexuality didn’t exist. In 2011 he didn’t. QED.

Perhaps the worst thing about this new finding is that Bailey et al will now try to turn male bisexuals into a ‘species’ to be studied and dissected. Bisexual men may quickly come to the conclusion that they were much better off when they didn’t exist.

Unless of course they themselves have a bit of a fetish for penile plethysmograph play.