Great story Mustang - makes you wonder if maybe she had been tipped off by a "not so trustworthy" friend.
My wife told me of a girl she knew (through a friend of a friend of a friend kind of thing) that claimed she could get any man to cheat on their wife/girlfriend/etc., and offered her service to anyone interested. My wife then me asked if she would have a chance of success with me. My reply was that if all she did was make it clear that I could have sex with her anytime, then no chance, but if she said (unsolicited) that I could tie and tickle her all night, then I would be positive that my wife had put her up to it, and the answer would still be no.
In the end, our "special interest" may be our Kryptonite, meaning it's still rare enough to make us think twice when we're randomly exposed to it.