A man obsessed with women's buttocks, particularly the area right in the center. His desire grows until he starts "hip stimulation" on his own. He carefully massages the asshole, then uses expert tongue techniques to perform defecation-inducing cunnilingus. Intoxicated by the strong smell of long feces passing right under his nose, he passionately provides sensual service. The intense arousal and his partner's reactions are utterly irresistible.