You would be totally shocked to find out how many civie women have tried this and have not kissed and told. You would also be surprised how many times I have gotten what seemed to be a straight woman out of a vanilla bar or club before.
My first time was 12 years ago with my bf (now my SO), my ex SO and his new girlfriend....after several hours of drinking together. It was something I had always wondered about, but just never had the nerve until I was drunk and egged on by a room full of people.
I didn't get into 'The Biz' for another 10+ years later.