While some married couples in Greece bickered over how much soccer they were watching on TV during the last month, others seem to have treated the World Cup as the ideal stimulus for their sex lives. According to a survey by the Greek Society for Mental and Sexual Health which was made public yesterday, two-thirds of married women aged 30-50 said that they were more sexually active between June 15 and July 11 than in previous months. Only 5 percent of women in this age group said they had less sex. The 300 women who were questioned as part of the survey said they had sex with their husbands more than 10 times on average during those four weeks, compared to just six times a month before the World Cup. Researchers found that 65 percent of married women watched the matches at home with their husbands.