Director John 'Buttman' Stagliano is famous for his obsession with the female anus. In this epic series of clips, the porn legend explores the puckered and perfect sphincters of AJ Applegate, Chanel Preston, Ashley Fires, Roxy Raye, Jada Stevens, Sheena Shaw, Anikka Albrite, Kelly Divine, Sierra Sanders, Angell Summers, Mira, Felicia Clover, Luna C. Kitsuen and Mazzaratie Monica -- an all-star cast of the most celebrated sphincters around.