thats the best thing - ok we go cause we're horny - but shes nice. i actually would like to go out with her - just to chat - oh and she'd make me look good.. way above my league!! if i lived in london i'd be skint!!!
With my serious hat on, if you've seen her that many times you could always say you'd love to take her out to dinner one time (off the books), followed by a paid-punt at her usual rate? Of course, dinner would be on you.
Put it in such a way that you're not expecting it but would love to. You *may* be surprised.
I punted a lovely TS earlier this year and there followed another visit shortly after which was purely social (complex reasons which I won't go into here) and it was an absolute hoot. She insisted on going Dutch (to do with the reasons), we shared a couple of bottles of wine and the Italian waiters and the rest of the clientele couldn't give a damn, infact there was much frivolity. One of the best dinner dates I ever had.