[perish__]

if you are in union square, SF, you will spot many places with neon signboards which says massage/spa - these are the one where there is hanky panky.

to the establishment - you probably pay about USD 50
to the gal - its USD 160

SF is not a cheap place for this, and even food and alcohol are not cheap there.
maybe can check out their clubs like Infusion which is in union square.
quite a nice place if you just want to get a drink or the Red Room.

there are some gals who may appear on the streets in the vicinity off union square after 1130pm.
usually charging USD 200 and up for ST.

overall - IMHO, SF is only good to visit as a tourist to enjoy the sights and sounds.