I was at school in my mid teens I had an experience that became instrumental in the way my sex life developed,’ she said. ‘It had become a bit of a naughty game amongst some of the older boys to creep up behind a girl, carefully reach up under her gymslip and quickly pull down her navy blue knickers (which were our regulation underwear when at school). That, basically, was as far as it went most times. The boys ran away whilst the girl simply pulled her knickers up again