So my learning the last time in Beijing was that the massage girls in my hotel didn't just do massage.
They stood outside the spa in the evening in their nice pink robes, offering massage for about $40 (which is now, as I understand, on the high end). I was most surprised when she would said she would be in my room in 5 minutes.
She arrived and informed me that "massagie" would be 250 RMB, while a "really good massagie" would be 600 RMB - including "kissie". Well... as she had me get naked and lay down on the bed, I came to understand this included a mediocre massage and a very happy ending (BBBJCIM)
Well, of course science demanded I try a couple more samples during my week long stay - 1 was excellent (the first) one mediocre (the second) and one pretty good (the third).
Now that I know pricing I anticipate a much better deal next time.