Erofeestjes organizes active erotic parties for swingers and singles in the Netherlands. Events are held approximately every three weeks at Club Organza, centrally located between Amsterdam and Utrecht. The parties feature live DJs, themed nights, and a safe, respectful atmosphere. All events are private and accessible by invitation only after registration. Single men are admitted through a strict selection process. Erofeestjes is known as the most-visited organization for parties with extra men in the Netherlands and Belgium, with no paid ladies — only genuine enthusiasts. The focus is on active swinging, bisexual encounters, and fulfilling erotic fantasies in a discrete, consent-driven environment.