Sure there are a lot of working girls from Russia/Ukraine/Belarus or FSU in FRA.
But one has to know where to find them, in the red light district near the station you will not find them.
But why giving information to you, you are the kind of guy only sucking information and never giving any travel reports.
What about your recent trips to NY or Paris - never heard anything about but only asking questions.
Shame on you.
B.Mold.