Forum Please note that all topics are public to the world wide web. Forum → About Subcubus → What is Subcubus?You need to login in order to create posts and topics. » Login What is Subcubus? May 25, 2016, 10:29 am admin Posts: 8 Subcubus - "Hidden Sexual Spirit" . A free social site created specifically for Sexuals. This site contains adult content and you must be 18 or older to join.