Greek attitudes towards sex were different from our own, but are all those myths about the sex lives of the ancient Greeks true? And how does this affect how we view the art? Here are the facts behind four commonly held beliefs. Greek men were all bisexual . It was certainly the norm in ancient Greece for a man to find both sexes attractive. Masturbation. To the ancient Greeks masturbation was a normal and healthy substitute for other sexual pleasures – a handy ‘safety valve’ against destructive sexual frustration. This may explain why there are so few references to it in the literature: it was common practice and did not merit much attention.