Professor Arsenio W Cockshaft was one of several pseudonyms used by Jason Kane to positively review his pornographic novels in order to get himself critical acclaim.
When Jason and his five alter-egos were invited to a conference regarding his work, he commissioned two android duplicates of himself from ProxyMation Corporation to take on the roles of Cockshaft and Jonas Neak. The androids immediately turned on Jason and secretly contacted his rival publishing company Palp Fiction to offer their services in taking down Jason. With the assistance of Palp Fiction, a third duplicate of Jason was commissioned going by yet another of his aliases, Ken J Aason, and the trio helped publicly expose Jason's deception causing his publishers Velvet Mandible's sales to suffer. In exchange Palp Fiction stopped the inevitable decommissioning of the duplicates and raised the finances to place them into permanent organic bodies. (PROSE: Sex Secrets of the Robot Replicants)
Behind the scenes
While the other four pseudonyms were anagrams of Jason Kane's name - Jonas Neak, Jan Keason, Anne Sojak, Ken J Aason - Arsenio's was not and Bernice Summerfield suggested Jason was feeling "unusually creative" when he came up with the name.