Whatever you do - just think of the karma (whether or not you belive in karma).
I am sure you would not willingly hurt her feelings - just be mindful of what you do and how it may effect her.
Be up front, honest and to the point with her. What you want is sex without the strings. Let her decide if she can settle with only that - the typical answer at this stage however is 'no'. She may not even tell you that she can't settle with only sex.
Be the good guy - we actually don't finish last .. it just sometimes feels that way.
