Looks like you saw Jenny in her low 20s, who is a bit looks like actress Phoebe Kate and quite cute. She knows she has the looks so she thinks she can get away with things easily. She is only good for those who don't care much about the service, but just want to bang a cute young girl.
BTW , how long did you booked for? If you book one hr it is possible they might ask $160 extra for FS. If just for half hr they usually ask $120 and most times settle for 100 bucks on top of the room fees.
One of my buddy had the same problem last month at QQ where he booked one hr and the girl asked $160 for FS. All the FS girls at holistic spas prefer seeing guys for half hr only, cuz they can make more money that way. One 1 hr customer they make only $160 for FS, Two half hr customers they can make $240. They can still make 200 bucks even if they settle for 100 bucks for FS. Most of young girls are not really good in service either. I prefer seeing ladies in their high 20s to mid 30s for good service. Sometimes if they don't want to do FS with you they might say too big and ask ridiculous amount of money.
For me, I am tired of FS girls and prefer seeing semi legit girls. Much better time and much cheaper as well.