Seeking advise for an Erotic long weekend in Germany

Hi,

We want to experience some German clubs this August during a long erotic weekend (Thursday evening until Sunday). We mostly like to play with some extra men for her - he likes to watch her play and of course also loves to participate.

Are there any German clubs in region of Münster, Dortmund, Düsseldorf, etc. (we're from Antwerp and wouldn't like to drive too long). Preferably we have around three different clubs in the same region that we could visit during the weekend to have different experiences.

Many thanks and looking forward to your recommendations