Einmalig-Events runs kinky and sex-positive parties across North Rhine-Westphalia, hiring a different club for each one — techno cellars in Duisburg, a ballroom in Düsseldorf, halls in Neuss and Hagen.

The formats are named and distinct: DOPAMIN for hard techno, HEDONISTICA for a strict fetish dress code and elegance, UNITED KINKDOM, a Halloween party, a Christmas rave and a New Year's Eve night, with an annual birthday party in September.

Every party has a play area — the organiser's line is that no good kinky party goes without one — with a supervised couples lounge that also admits MMF and FFM groups, and play permitted elsewhere in the venue too. Single men have to be verified in advance by WhatsApp before they can buy a ticket, and the organiser states plainly that predatory behaviour is treated as sexual coercion and gets the guest removed. An awareness team works every event.

Phones and cameras are banned outright during the parties: using one means immediate exclusion with no refund.

The organiser runs a members' mailing list of sorts over WhatsApp, through which it announces spontaneous and members-only secret parties, early-bird tickets, and an advance dress-code check on a photograph of your outfit.