One in five women under 30 will have unprotected sex while drunk this summer

One in five women under 30 will have unprotected drunken sex on holiday this summer, finds survey Average single woman has had unprotected sex 11 times with a total of four different men, according to poll | UPDATED: 12:36 GMT, 31 July 2012 One in five young British women will have unprotected drunken sex on holiday this summer, according to a new report.