FKK Palace outside of Frankfurt is considered one of the best in Germany, I was there a couple of times but not for a couple of years now. It used to be €50 admission (stay as long as you wanted) and that included free food buffet, drinks (non alcho) and use of the porn cinema and swimming pool. You get undressed and stick on a towel, over 100 women of every type there mostly wearing bikini bottom and nothng else. Sex takes place anywhere including bar or couches/cinema etc. but there are rooms available at no extra cost. Each session lasts 30-45 mins depending on girl for what was then €50 a go. After each girl you go back to your locker and pay her, staff there check that you were happy and seems very well run. Strip shows used to take place on a rotating harley next to bar. Ask any taxi to bring you it cost approx €30 if I remember right from city centre. Also huge redlight area next to train station, 4-5 story buildings with women at the door on each level. Definately a different experience!! Hope this helps you out.