Ladies, consider this scenario:
A man is out in a bar or whatever and is with a platonic lady friend. The man, over the course of his time at this bar meets another lady who he fancies might be up for relations. The lady evidently feels the same way because she then asks (referring to the platonic lady, and with her within earshot):
IS THAT YOUR GIRLFRIEND?
My question to all women ever is this: Do you have brains in your heads? At all?
What man has the tact and guile to answer this question truthfully and in the right tone of voice without getting into utter shit with the lady in question? The answer is: None of them do. Not least with alcohol and the possibility of sex on the table.
Please, for the love of God, if you want to find out if the girl a guy is with is his girlfriend, make sure she's not there when you ask. Cheers, yeah?
Alcock can handle things from here...