Michiel76 thanks for the information
Tried windows and private houses
Part 1
Windows - as mentioned 3 main areas - De Wallen, Singel and De Pijp. This website
http://www.amsterdam-red-light-district-maps.com/
is excellent
Went to De Pijp windows at about 2 pm - quiet and few tourists. Only half the windows opened. At no. 135 Ruysdaelstraat - had a MILF busty (silicon) bottle blonde. Ask for 40 Euro for fuck and suck. Found out she is from Venezuela. After negotiation, stripped and CBJ and then follow by missionary position. About 15 - 20 mins, did not feel rushed. Experienced worker, been working the windows for 5 years.
Looks - 3/10 (looks better from outside the window)
Boobs - D+ with silicon
Body - MILF with stretched marks, about 160+ cm
Service - actually very friendly and not rushed
RTF - only for MILF lovers