This study investigated whether deviant pornography use followed a Guttman-like progression in that a person transitions from being a nondeviant to deviant pornography user. In order to observe this progression, 630 respondents from Survey Sampling International’s (SSI) panel Internet sample completed an online survey assessing adult-only, bestiality, and child pornography consumption. Respondents’ “age of onset” for adult pornography use was measured to determine if desensitization occurred in that individuals who engaged in adult pornography at a younger age were more likely to transition into deviant pornography use. Two hundred and 54 respondents reported the use of nondeviant adult pornography, 54 reported using animal pornography, and 33 reported using child pornography. The child pornography users were more likely to consume both adult and animal pornography, rather than just solely consuming child pornography. Results suggested deviant pornography use followed a Guttman-like progression in that individuals with a younger “age of onset” for adult pornography use were more likely to engage in deviant pornography (bestiality or child) compared to those with a later “age of onset”. Limitations and future research suggestions are discussed.