Even if he was editor of Loaded magazine which was accused of being a soft porn publication, Martin Daubney was shocked when he sat down on a forward-thinking class led by sex education consultant Jonny Hunt.

The first shock was when Mr Hunt asked the kids to list everything they knew about porn and one student described what a nugget is.

Clearly a reference to the popular McDonald's square-shaped chicken tidbits, a student said it refers to a girl with no arms or legs and has sex in a porn movie. The answer elicited different response ranging from embarrassed laughter to outright revulsion.

People with such physical condition are often victims of medical anomaly such as the Thalidomide babies in the 1960s, which would make it revolting to think women in that physical state would consider acting in a porn movie.

Being an alphabetical listing of porn terms from A to Z, the first word listed was anal.

All members of the class, which has 20 members, have seen sodomy or anal sex in porn videos, which definitely has affected the perception of the students. One example is one male student saying that having pubic hair is repulsive and he called people with unshaved pubs gorillas.

No doubt, he got the idea from porn stars, majority of whom shave their pubic hair, which is also becoming a common practice among the youth.

At the end of the session, Mr Daubney acknowledge that teenage boys will always be fascinated by sex but noted their distorted view of intercourse and the way relationships must be conducted.

He added, "It seemed as if the children's entire expectation of sex had been defined by what they see in online porn. The conversation was horrifying enough, yet there was worse to come."

Part of the blame is there is too much exposure of these kids to porn is that their parents don't place controls on their Internet at home. But they admitted their mums and dads don't have an idea of the videos they watch and would be shocked if they found out.

His findings match that of a UK Independent report last week on a University of East London study that said 97 per cent of the boys had viewed porn, slightly higher than the 93 per cent in a separate 2008 study published in the American journal CyberPsychology and Behavior.

Mr Daubney will be the presenter of a Channel 4 documentary titled Porn on the Brain, which airs on Monday, Oct 14.

For those who will miss the documentary, you can watch it instead via YouTube.

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