This discreet men's spa is so popular that reservations are almost impossible to get. It seems ordinary at first, except the cute, slender therapist wears nothing but an oversized men's dress shirt, with her small tits occasionally peeking through the open collar. Her massage feels so good that the customer's cock twitches despite his desperate attempts to hold back. Noticing his reaction, she asks, "Would you like to upgrade to the premium course?"