Germany is not really as touristic as many countries in Europe. So I would think that you would want to add some sex as well.
The old-fashioned German bordello is a thing of the past. They were mostly in Berlin, but most have now closed.
The German scene is now bifurcated between very large FKKs that often have 50-150 ladies ( most of whom are Eastern European, primarily Romanian), and relatively expensive but high-performing German independent escorts.
Both are discussed in this International forum if you will search for Germany.