Purrfect LV runs swinger parties and adult lifestyle events in Las Vegas, putting its own nights inside other people's rooms — currently a nightclub 63 floors above the Strip and a bar at Mandalay Bay. It has been doing it long enough that its guests' testimonials still name rooms it has since moved on from.

The programme has a weekly spine and a run of one-off specials. The weekly nights are a play party and a Saturday lifestyle mixer; the specials are the holiday weekends — Labor Day, Halloween — where the brand takes the rooftop club.

Two things run through everything it publishes. The first is that nothing is sold on the door: every event is book-online-only, and the organiser repeats it in capitals on every listing. The second is a wide door policy — the brand states plainly that it welcomes couples in their twenties through to lifestyle enthusiasts in their seventies and beyond, of all backgrounds, ethnicities, preferences and relationship styles, and that nobody is ever expected to participate beyond their own boundaries.

Dress is sexy club wear, fetish wear or upscale evening attire. Guests must be 21 or over with valid ID. Seating at the rooftop nights exists only as VIP tables with bottle service, booked by phone. The brand also runs a blog for first-timers and publishes its dates on its own site and social accounts — check there for the next one, and browse our Las Vegas guide for the city's venues and other party brands.