Fat men more faithful

A new study says fat men are less likely to stray than their thinner counterparts - but not through lack of opportunity.

The German survey found that overweight men are more faithful because they had less inclination towards risky sex.

Market researcher group Forsa say men of average weight are more than twice as likely to be unfaithful as fatter men.

Overweight men are not only less likely to cheat on their partners, but are also less likely to visit brothels or call sex hotlines.

One thousand German men between the ages of 31 and 69 were questioned by the researchers.

They found 23% of men in the "normal" weight category admitted to being interested in a bit on the side, while just 11% in the "fat" category said they would cheat on their wives or girlfriends.

A further 19 per cent of men considered "moderately overweight" said they would have an affair.

The researchers say that it is not a lack of opportunity that make heavy men a less risky option, but simply that their wish for risky sex decreases.

Sascha Rusch, an expert for men's health, said fat men were not less sexually active than their slimmer counterparts but they "seldom rise to the challenge of a sexual adventure".