If a woman cheats on her fella she now has the perfect excuse - it's in her genes.
 

'MY BODY MADE ME DO IT'

Researchers studied 1,600 female twins, asking them a range of questions relating to their sexual attitudes and behaviour.


The women reported previous episodes of infidelity, total lifetime number of sexual partners and also their attitudes towards infidelity.

The research claim that genetic factors accounted for 38-40% of the reasons for an affair.

Other issues such as a shared family environment and individual life events accounted for the remaining 60%.

Lead researcher Professor Tim Spector, from Guy's and St Thomas's Hospital in London, said that while there was "no specific gene for infidelity or fidelity", the infidelity trait is caused by a "suite" of genes, originating on three separate chromosomes.

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Nah, bad excuse :321GFY

I agree to a point. If you have dated a mexican or phillipeno (s?)chick, they have it in their blood to take the cock.

:2 cents:

Actually, from an evolutionary standpoint, infidelity is a way to ensure that the strongest genes live on to replicate. The female finds a male who will tend her offspring and take care of her, but that doesn't neccessarily mean that he's a good genetic match, therefore infidelity introduces the possibiility of better genetic donations.