"Is That You?", the first song on Kiss' Unmasked album, was written by Gerard McMahon, who records under the moniker G Tom Mac.
McMahon says that the song was inspired by a "Bettie Page leather-looking girl in a bar at a hotel somewhere in the Midwest" who wanted to give him a "good thrashing" in his room. Considering the proposition, he decided he'd rather write a song about the encounter than accept her invitation.
McMahon says he is "eternally grateful" to have this song recorded by Kiss, and muses that the process was formative for his songwriting career.