There's no guarantees when it comes to this game. I think eye of the beholder comes in to it. If she is really your type then go for it, keep an eye out for when she does £50 half hour as a taster.
When I last saw her last year she kissed lots, which she hadn't done in any of the previous meets, so in that respect it felt like she offered more.
That said I also know from this game, when the heads not in it and there is an exit ahead, things can go downhill quick. Imagine your last day of a job, or that last week at school before the holidays. Maybe she has a bit of that.